# Boeing Alert Service Bulletin 777-28A0034: Revision 3 - Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2015-7527; AD 2016-21-05 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Boeing Alert Service Bulletin 777-28A0034](https://openairdocs.org/service-documents/boeing/777-28a0034.md) - Title as filed: U.S. DOT/FAA - SB-777-28A0034-03 - Pages: 213 - PDF: https://openairdocs.org/files/sha256/fe/82/fe82758e41032de07b1b8ea61206df4d1f3355f57d342b04fae6dfd16cc7a5e9 - Page: https://openairdocs.org/service-documents/boeing/777-28a0034/file/fe82758e4103 ## Text Some pages are OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 Commercial Airplanes 777 Service Bulletin Number: 777-28A0034 Original Issue: August 02, 2007 Revision 3: September 25, 2015 ATA System: 2822 2825 2826 2831 SUBJECT: FUEL - Main and Center Tank Valve Actuators - Inspection and Replacement Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws. 9E991ECCN: BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET Copyright © 2007 Boeing. Unpublished Work. All Rights Reserved. Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company. Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 1 of 213 3.0 ### Page 2 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 2 of 213 BOEING SERVICE BULLETIN 777-28A0034 BLANK PAGE ### Page 3 Table of Contents Revision Transmittal Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1. PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 2. Data Supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. Installation Drawings Used in the Preparation of this Service Bulletin: . . . . . . . . . . . 55 K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 M. Software Accomplishment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 C. Parts Necessary for Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 1. Kits/Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 2. Parts and Materials Supplied by the Operator: . . . . . . . . . . . . . . . . . . . . . . . . 57 3. Parts Modified and Reidentified: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 4. Parts Removed and Not Replaced: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 69 3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 FIGURE 1: LEFT ENGINE FUEL SPAR MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1-3, 5-6, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . 103 FIGURE 2: MOTOR OPERATED VALVE ACTUATOR - INDEX PLATE - REMOVAL [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . 105 FIGURE 3: MOTOR OPERATED VALVE ACTUATOR - INDEX PLATE - PREPARATION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 FIGURE 4: MOTOR OPERATED VALVE ACTUATOR - ADAPTER PLATE ELECTRICAL BOND RESISTANCE - MEASUREMENT [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . 108 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 3 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 4 FIGURE 5: MOTOR OPERATED VALVE ACTUATOR - ADAPTER PLATE SURFACE - PREPARATION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 FIGURE 6: MOTOR OPERATED VALVE ACTUATOR - INDEX PLATE - LOCATION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . 110 FIGURE 7: MOTOR OPERATED VALVE ACTUATOR, WITH INDEX PLATE - INSTALLATION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 FIGURE 8: MOTOR OPERATED VALVE ACTUATOR - ADAPTER PLATE AND AIRPLANE SURFACE - CLEAN [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 FIGURE 9: RIGHT ENGINE FUEL SPAR MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1-3, 5-6, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . 116 FIGURE 10: LEFT WING - FORWARD/AFT CROSSFEED MOTOR OPERATED VALVE ACTUATORS PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . 118 FIGURE 11: LEFT WING - APU FUEL SHUTOFF MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . 120 FIGURE 12: LEFT WING - APU FUEL ISOLATION MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . 122 FIGURE 13: LEFT WING - APU FUEL ISOLATION MOTOR OPERATED VALVE ACTUATOR BRACKET - CHANGE [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 FIGURE 14: RIGHT WING - DEFUELING MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . 129 FIGURE 15: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 4, Configuration 1; Group 5] . 131 FIGURE 16: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 4, Configuration 1; Group 5] . 132 FIGURE 17: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 FIGURE 18: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 FIGURE 19: LEFT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . 135 FIGURE 20: RIGHT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR PART NUMBER - INSPECTION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1; Group 5-6] . . . . . . . . . . . . . . . . . . 137 FIGURE 21: LEFT WING - APU FUEL SHUTOFF/ISOLATION MOTOR OPERATED VALVE ACTUATOR - INSTALLATION [Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 FIGURE 22: LEFT AND RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR - INSTALLATION [Group 1, Configuration 1-2; Group 4, Configuration 1] . . . . . . . . . 143 FIGURE 23: LEFT ENGINE FUEL SPAR MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1-3, Configuration 4] . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 4 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 5 FIGURE 24: RIGHT ENGINE FUEL SPAR MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1-3, Configuration 4] . . . . . . . . . . . . . . . . . . . . . . . . . . 149 FIGURE 25: LEFT WING - FORWARD/AFT CROSSFEED MOTOR OPERATED VALVE ACTUATORS BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2] . . . . . . . . . . . . . . . . . . . 151 FIGURE 26: LEFT WING - APU FUEL SHUTOFF/ISOLATION MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2] . . . . . . . . . . . . . . . . . . . 153 FIGURE 27: RIGHT WING - DEFUELING MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 FIGURE 28: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 4, Configuration 2] . . . . . . 158 FIGURE 29: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 4, Configuration 2] . . . . . . 160 FIGURE 30: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 2, Configuration 3-4; Group 3, Configuration 3-4] . . . . . 162 FIGURE 31: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 2, Configuration 3-4; Group 3, Configuration 3-4] . . . . . 164 FIGURE 32: LEFT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . . 165 FIGURE 33: RIGHT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL [Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2] . . . . . . . . . . . . . . . . . . . 167 FIGURE 34: LEFT WING - W8473 WIRE BUNDLE ROUTING - CHANGE [Group 1, Configuration 3-6; Group 2, Configuration 3-6; Group 3, Configuration 3-6; Group 4, Configuration 2-3] . . . . . . 169 FIGURE 35: LEFT ENGINE - FUEL SPAR MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 1, Configuration 3, 5; Group 2, Configuration 3, 5; Group 3, Configuration 3, 5; Group 4, Configuration 2-3; Group 5-6, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . 172 FIGURE 36: MOTOR OPERATED VALVE ACTUATOR WITH INDEX PLATE INSTALLATION [Group 1-4, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 FIGURE 37: RIGHT ENGINE - FUEL SPAR MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 1, Configuration 3, 5; Group 2, Configuration 3, 5; Group 3, Configuration 3, 5; Group 4, Configuration 2-3; Group 5-6, Configuration 1] . . . . . . . . . . . . . . . . . . . . . . 178 FIGURE 38: LEFT ENGINE - FUEL SPAR MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 FIGURE 39: RIGHT ENGINE - FUEL SPAR MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6, Configuration 2] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 FIGURE 40: LEFT WING - AFT CROSSFEED MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 FIGURE 41: LEFT WING - FORWARD CROSSFEED MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 FIGURE 42: LEFT WING - APU FUEL SHUTOFF MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 FIGURE 43: LEFT WING - APU FUEL ISOLATION MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 FIGURE 44: RIGHT WING - DEFUELING MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 5 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 6 FIGURE 45: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 FIGURE 46: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 FIGURE 47: LEFT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 FIGURE 48: RIGHT WING - FUEL JETTISON NOZZLE MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 FIGURE 49: LEFT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 FIGURE 50: RIGHT WING - FUEL JETTISON ISOLATION MOTOR OPERATED VALVE ACTUATOR REPLACEMENT [Group 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 APPENDIX A: SUMMARY OF SERVICE BULLETIN CHANGES RELATED TO MOV ACTUATOR PART NUMBER AND AIMS SOFTWARE VERSION INSTALLED . . . . . . . . . . . . . . . . 212 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 6 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 7 Commercial Airplanes 777 Service Bulletin Revision Transmittal SheetNumber: 777-28A0034Original Issue: August 02, 2007 Revision 3: September 25, 2015 ATA System: 2822 2825 2826 2831 SUBJECT: FUEL - Main and Center Tank Valve Actuators - Inspection and Replacement This revision includes all pages of the service bulletin. COMPLIANCE INFORMATION RELATED TO THIS REVISION Federal Aviation Administration (FAA) Airworthiness Directive AD 2013-05-03 is related to this service bulletin. Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2013-NM-204-AD, is related to this service bulletin. Airplane line numbers 555, 559, 561-563 and 566-567 are added to new Group 5 of this service bulletin effectivity. Airplane line numbers 557-558, 560, 565 and 568 are added to new Group 6 of this service bulletin effectivity. Airplane line numbers 552-554, 556, 564 and 569 and on are added to new Group 7 of this service bulletin effectivity. NOTE: Airplane line numbers 504 and 519 have an AIMS 2 configuration and were incorrectly included in the Original Issue of this service bulletin, because they were delivered with MOV actuator P/N MA20A2027 installed (and not MA20A1001-1). These airplanes would have been added at this revision, if not included before, and are thus changed between groups of this service bulletin effectivity, to correctly define MOV actuator part interchangeability. Effects of this Issue on airplanes on which the Original Issue, Revision 1, or Revision 2 was previously done: See Paragraph 1.D., Description for more information. REASON FOR REVISION This revision is sent to add a new Motor Operated Valve (MOV) actuator, part number MA30A1017, and a new APPENDIX A, to show the interchangeability with existing part numbers MA30A1001 and MA20A2027. The new MOV actuator is designed to divide the control and indication functions within the MOV actuator to remove a condition where a single defect within an MOV actuator could result in incorrect operation, without any report of the defect. This condition affects airplanes with both Airplane Information Management System (AIMS 1) and AIMS 2 systems. A software change will be made available in Boeing Service Bulletin 777-31-0227 for AIMS 2 airplanes, only. AIMS 2, V17 or later, will allow those airplanes to operate with specified MOV actuator part numbers installed at engine fuel spar locations. An MOV actuator change is necessary for AIMS 1 airplanes at the engine fuel spar locations, because an MOV actuator failure in this location could result in a failure to isolate fuel in the event of an engine fire, and no software solution is possible. As a result, at this revision, airplanes with AIMS 1 software that were in Group 1 are moved to new Group 4. In addition, airplanes that have MOV actuator P/N MA20A2027 installed that were in Group 2 are moved to new Group 3, for parts interchangeability. This revision also adds new Groups 5 and 6, to inspect for unserviceable MOV actuators that could have been Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 7 of 213 ### Page 8 accidentally installed on airplanes delivered with serviceable MOV actuators. Group 7 is added to define part interchangeability for the new MOV actuator, applicable to those airplanes. New configurations are added to Groups 1 thru 4, to identify previous incorporation of this service bulletin, and to all groups to show the possible AIMS hardware and software configurations related to the work in this service bulletin. This revision is also sent to adjust the routing of wire bundle W8473 to give clearance between the wire bundle and the Auxiliary Power Unit (APU) fuel isolation MOV actuator, to agree with the production configuration and to add reference to Federal Aviation Administration (FAA) Airworthiness Directive AD 2013-05-03 and Notice of Proposed Rule Making NPRM 2013-NM-204-AD. Airplane line numbers 1 thru 422, 424 thru 428, and 430 thru 453, that have an AIMS 1 configuration, are moved from Group 1 to new Group 4 of this service bulletin effectivity. Airplane line numbers 504 and 519 are moved from Group 2 to new Group 3 of this service bulletin effectivity. Terminology has been changed in the Work Instructions to agree with the terminology defined in Paragraph 3.A., General Information - Notes. These sections are changed: 1. Summary - Background: Updated and added related references. 2. Summary - Action: Updated to add more work and new groups and configurations. 3. Summary - Compliance: Added AD 2013-05-03 and NPRM 2013-NM-204-AD and updated statement. 4. Summary - Manpower: Updated. 5. Summary - Illustration: Added new Groups, Configurations and instructions. 6. Paragraph 1.A., Effectivity: Added new Groups and Configurations. Updated line number statement. 7. Paragraph 1.C., Reason: Updated and added related references. 8. Paragraph 1.D., Description: Updated to add more work and new airplane groups and configurations. Added table for effects of this Issue on airplanes on which the original issue, Revision 1, or Revision 2 was previously done. 9. Paragraph 1.E., Compliance: Added AD 2013-05-03 and NPRM 2013-NM-204-AD and updated statement. 10. Paragraph 1.F., Approval: Added AMOC statement for AD 2013-05-03. 11. Paragraph 1.G., Manpower: Separated tables for Work Packages 1 thru 12 and added new tables for new Groups and Configurations, more work and Work Package 13. 12. Paragraph 1.H., Weight and Balance Changes: Changed table to show weight change for each MOV actuator as one item and added footnote. 13. Paragraph 1.J., References: Updated. 14. Paragraph 1.J.3., Installation Drawings Used in the Preparation of this Service Bulletin: Added standard paragraph. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 8 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 9 15. Paragraph 1.M., Software Accomplishment Summary: Added new statement. 16. Paragraph 2.C.2., Parts and Materials Supplied by the Operator: Updated tables and added new tables for new Groups and Configurations. Added optional MOV actuator part numbers MA20A2027 and MA30A1017. 17. Paragraph 2.C.3., Parts Modified and Reidentified: Added table new Groups and Configurations. 18. Paragraph 3.A., General Information: Updated General Notes. 19. Paragraph 3.B., Work Instructions: Updated existing work packages and MOV actuator part names - with note. Added lockwire task. Added new Groups and Configurations. Added new Work Package 13, and more work. 20. Paragraph 3.B., Work Instructions, Work Package 1 and 2: Added Step 2 and changed Step 3 to incorporate new configurations. 21. Paragraph 3.B., Work Instructions, Work Packages 3 thru 12: Added optional MOV actuator part numbers MA20A2027 and MA30A1017. 22. Figures 1 thru 22: Updated titles. Added new Groups and Configurations. 23. Figures 1, 2, 5, 6, 7 and 9 thru 22: Updated step tables. 24. Figures 1, 2 and 4 thru 20: Updated illustrations. 25. Figures 7, 21 and 22: Added optional MOV actuator part numbers MA20A2027 and MA30A1017. 26. Figures 21 and 22, step tables: Corrected Fay Bond instructions in Footnotes (b) and (g). 27. Figures 23 thru 50: Added for this revision. 28. APPENDIX A: Added for this revision. The data given in Information Notice 777-28A0034 IN04 is included in this revision. The data given in Alternative Method of Compliance Notice 777-28A0034-AMOC-01 is included in this revision. Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity and format changes, to show the location of all content changes. Pages with no vertical lines have no changes. REVISION HISTORY August 02, 2007Original Issue: May 20, 2010Revision 1: September 20, 2010Revision 2: September 25, 2015Revision 3: Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 9 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 10 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 10 of 213 BOEING SERVICE BULLETIN 777-28A0034 BLANK PAGE ### Page 11 Commercial Airplanes 777 Service Bulletin SummaryNumber: 777-28A0034Original Issue: August 02, 2007 Revision 3: September 25, 2015 ATA System: 2822 2825 2826 2831 SUBJECT: FUEL - Main and Center Tank Valve Actuators - Inspection and Replacement CONCURRENT REQUIREMENTS None. BACKGROUND Accomplishment of this service bulletin will prevent electrical current flow through Motor Operated Valve (MOV) actuators into the fuel tank. If this service bulletin is not done it is possible that a flow of electricity into the fuel tank could result in a potential source of ignition in a fuel tank and consequent fire or explosion. The Boeing system safety assessment necessary for Special Federal Aviation Regulation (SFAR) 88, showed that under specific conditions it was possible for electrical current to flow through certain MOV actuators into the fuel tank. A new MOV actuator is available to replace the existing MOV actuator with this condition. The new MOV actuator includes an internal electrical isolator to give the MOV actuator protection against electrical energy from lightning, 115 VAC hot shorts, and 28 VDC internal shorts. The new MOV actuator will prevent the flow of an electrical current into the fuel tank and increase the reliability of the fuel system. This service bulletin replaces the MOV actuator part number MA20A1001-1 with a new MOV actuator part number MA30A1001 or MA30A1017. This service bulletin gives instruction on how to measure the electrical resistance of bonds at the installed MOV actuator locations, how to prepare a faying surface for the installation of the new MOV actuator, how to prepare affected airplane parts, and how to install the new MOV actuator. After release of Revision 2 of this service bulletin, Boeing received reports of unserviceable MOV actuators part number MA30A1001. A condition was found where a single defect within an MOV actuator could result in incorrect operation, without any report of the defect. An MOV actuator with this defect, in the engine fuel spar MOV actuator location, could possibly not be able to isolate fuel from an engine fire. The new MOV actuators provided by Revision 3 of this service bulletin have been designed to divide the control and indication functions within the MOV actuator and thus remove this condition. Refer to APPENDIX A for a summary of service bulletin changes related to MOV actuator part number and AIMS version installed. NOTE: ITT part numbers for the MOV actuator are used in this service bulletin, equivalent Boeing MOV actuator part numbers are given in APPENDIX A. This service bulletin is the result of a safety assessment conducted by Boeing under SFAR 88, "Fuel Tank System Fault Tolerance Evaluation Requirements". Boeing Service Bulletin 777-31-0227 is related to this service bulletin, for AIMS 2 airplanes only. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 11 of 213 ### Page 12 Boeing Service Related Problem (SRP) 777-SRP-28-0141 is related to this service bulletin. Boeing Fleet Team Digest (FTD) 777 FTD 28-12002, 777 FTD 28-11003 and 777 FTD 28-11001 are related to this service bulletin. ACTION (PRR 61998-3, PRR 61777-233R) Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: MOTOR OPERATED VALVE ACTUATORS - INSPECTION AND REPLACEMENT 1. Get access to each MOV actuator. 2. Group 1-3, Configuration 2: Inspect each MOV actuator part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. If you are required to install the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017, you must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. 3. Group 1-4, Configuration 1: Remove the left and right engine fuel spar MOV actuator and install a new MOV actuator, part number MA30A1017, at those locations. You must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. 4. Group 1-4, Configuration 1: Inspect each MOV actuator that is not installed at an engine fuel spar location for part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. If you are required to install the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017, you must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. 5. Remove, change, and install the bracket at the Auxiliary Power Unit (APU) Isolation MOV actuator location to prevent part interference with the new MOV actuator part number MA30A1001 or MA30A1017. Install a new spacer on changed bracket to improve clearance to wire bundle W8473. 6. Close access to each MOV actuator. Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2: MORE WORK: MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL 1. Apply a cap seal to the fasteners of the MOV actuator bonding jumpers. 2. Remove the wire bundle clamp adjacent to the APU fuel isolation MOV actuator. Adjust wire bundle W8473 and install the clamp with a new spacer to give clearance between wire bundle W8473 and the APU fuel isolation MOV actuator. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 12 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 13 3. Group 1-3, Configuration 3; Group 4, Configuration 2: Replace the left and right engine fuel spar MOV actuators with MOV actuator part number MA30A1017. Group 1, Configuration 5-6; Group 2, Configuration 5-6; Group 3, Configuration 5-6; Group 4, Configuration 3: MORE WORK: LEFT WING - W8473 WIRE BUNDLE ROUTING - CHANGE 1. Remove the wire bundle clamp adjacent to the APU fuel isolation MOV actuator. Adjust wire bundle W8473 and install the clamp with a new spacer to give clearance between wire bundle W8473 and the APU fuel isolation MOV actuator. 2. Group 1-3, Configuration 5; Group 4, Configuration 3: Replace the left and right engine fuel spar MOV actuators with MOV actuator part number MA30A1017. Group 5-6: MOTOR OPERATED VALVE ACTUATORS - INSPECTION AND REPLACEMENT 1. Group 5-6, Configuration 1: Remove the left and right engine fuel spar MOV actuator and install a new MOV actuator, part number MA30A1017, at those locations. 2. Group 5-6, Configuration 1: Inspect each MOV actuator that is not installed at an engine fuel spar location for part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. 3. Group 5-6, Configuration 2: Inspect each MOV actuator part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. Group 7: No work is necessary for these airplanes. NOTE: Group 7 airplanes are only included in this service bulletin to define part interchangeability data. Refer to Paragraph 2.C.2., Parts and Materials Supplied by the Operator for more data. EFFECTIVITY 777 -200 /-200LR /-300 /-300ER /777F Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes. COMPLIANCE Federal Aviation Administration (FAA) Airworthiness Directive AD 2013-05-03 is related to this service bulletin. Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2013-NM-204-AD, is related to this service bulletin. Boeing recommends that the inspection and change given in this service bulletin be done within 60 months after the effective date of AD 2013-05-03. The effective date of AD 2013-05-03 is April 25, 2013. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 13 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 14 INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the configuration changes given in this service bulletin. MANPOWER Refer to Paragraph 1.G., Manpower. MATERIAL INFORMATION Boeing Supplied Kits/Parts. Refer to Paragraph 2.A., Material - Price and Availability. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 14 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 15 (OCR) BOEING SERVICE BULLETIN 777-28A0034 FUEL JETTISON ISOLATION MOV FORWARD/AFT CROSSFEED ACTUATOR MOV ACTUATOR APU FUEL SHUTOFF FUEL JETTISON MOV ACTUATOR NOZZLE MOV ACTUATOR APU FUEL ISOLATION MOV ACTUATOR DEFUELING MOV ACTUATOR FUEL JETTISON / ENGINE FUEL SPAR MOV ACTUATOR ISOLATION MOV ACTUATOR FUEL JETTISON NOZZLE MOV ACTUATOR GROUP 1 THRU 3 CONFIGURATION 1 AND 2, GROUP 4 CONFIGURATION 1. - INSPECT THE MOV ACTUATORS AT THE ABOVE LOCATIONS, TO FIND THE PART NUMBERS. - IF THE MOV ACTUATOR HAS AN UNACCEPTABLE PART NUMBER, REPLACE THE MOV ACTUATOR AND PREPARE AN ELECTRICAL BOND. - AT APU FUEL ISOLATION MOV ACTUATOR LOCATION ONLY: CHANGE BRACKET AND W8473 GROUP 1 THRU 3 CONFIGURATION 3 AND 4, GROUP 4 CONFIGURATION 2. - AT THE ABOVE MOV LOCATIONS, CAP SEAL THE MOV BONDING JUMPER FASTENERS. - AT THE APU FUEL ISOLATION MOV ACTUATOR ONLY, CHANGE W8473 ROUTING. GROUP 1 THRU 3 CONFIGURATION 3 AND 5, GROUP 4, CONFIGURATION 2-3. - REPLACE THE LEFT AND RIGHT ENGINE FUEL SPAR MOV ACTUATOR. GROUP 1 THRU 3, CONFIGURATION 5 AND 6, GROUP 4 CONFIGURATION 3. - CHANGE W8473 ROUTING. GROUP 5-6 CONFIGURATION 1. - REPLACE THE ENGINE FUEL SPAR MOV ACTUATORS WITH UNITS THAT HAVE AN ACCEPTABLE PART NUMBER. - INSPECT THE MOV ACTUATORS AT ALL OTHER LOCATIONS TO FIND THE PART NUMBER. IF THE MOV ACTUATOR HAS AN UNACCEPTABLE PART NUMBER, REPLACE THE MOV ACTUATOR WITH ONE THAT HAS AN ACCEPTABLE PART NUMBER. GROUP 5-6 CONFIGURATION 2. - INSPECT THE MOV ACTUATORS AT THE ABOVE LOCATIONS. - IF THE MOV ACTUATOR HAS AN UNACCEPTABLE PART NUMBER, REPLACE THE MOV ACTUATOR, WITH ONE THAT HAS AN ACCEPTABLE PART NUMBER. GROUP 7. - NO WORK IS NECESSARY FOR THESE AIRPLANES. U32450 Original Issue: August 02, 2007 Revision 3: September 25, 2015 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 777-28A0034 Work - See page 1 for details. 15 of 213 ### Page 16 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 16 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 17 Commercial Airplanes 777 Service Bulletin Number: 777-28A0034 Original Issue: August 02, 2007 Revision 3: September 25, 2015 ATA System: 2822 2825 2826 2831 SUBJECT: FUEL - Main and Center Tank Valve Actuators - Inspection and Replacement 1. PLANNING INFORMATION A. Effectivity 1. Airplanes Refer to Service Bulletin Index D624W001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data. This service bulletin is applicable to 777 airplanes, from line number 1 and on, in 7 Groups. The Variable Numbers and Group Information for the applicable airplanes is given below. An equivalent change is on subsequent production airplanes. Refer to PRR 61998-3 and PRR 61777-233R for data about this change. NOTE: The Variable Number table below includes all affected airplanes up to Line Number 1349. Affected airplanes after Line Number 1349 will be added to the service bulletin's MyBoeingFleet.com (MBF) "get effectivity" result when they are added to the MBF Fleet Profile Page. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 17 of 213 ### Page 18 DESCRIPTIONCONFIGURATIONGROUP 777-200/-300 airplanes with the jettison nozzle MOV actuator located inside the rear wing area and that do not have Airplane Information Management System 1 (AIMS 1) installed. -1 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V16, or earlier installed. 1 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V17, or later installed. 2 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 3 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 4 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 5 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 6 777-300ER airplanes with the jettison nozzle MOV actuator located on the rear wing spar and that do not have Airplane Information Management System 1 (AIMS 1) installed. -2 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V16, or earlier installed. 1 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V17, or later installed. 2 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 3 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 4 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 5 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 18 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 19 DESCRIPTIONCONFIGURATIONGROUP 777-200LR airplanes delivered with Motor Operated Valve (MOV) Actuators P/N MA20A2027 and with the jettison nozzle MOV actuator located on the rear wing spar and that do not have Airplane Information Management System 1 (AIMS 1) installed. -3 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V16, or earlier installed. 1 Airplanes that have not accomplished this service bulletin, that have AIMS 2, V17, or later installed. 2 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 3 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 4 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V16, or earlier installed. 5 Airplanes that have accomplished Revision 2 of this service bulletin, that have AIMS 2, V17, or later installed. 6 777-200/-300 airplanes with the jettison nozzle MOV actuator located inside the rear wing area and with Airplane Information Management System 1 (AIMS 1) installed. -4 Airplanes that have not accomplished this service bulletin.1 Airplanes that have accomplished the Original Issue or Revision 1, but not Revision 2 of this service bulletin. 2 Airplanes that have accomplished Revision 2 of this service bulletin.3 777-200/-300 airplanes delivered with MOV actuators P/N MA20A2027 with the jettison nozzle MOV actuator located inside the rear wing area. -5 Airplanes that have AIMS 2, V16, or earlier installed.1 Airplanes that have AIMS 2, V17, or later installed.2 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 19 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 20 DESCRIPTIONCONFIGURATIONGROUP 777-300ER airplanes delivered with MOV actuators P/N MA20A2027 with the jettison nozzle MOV actuator located on the rear wing spar. -6 Airplanes that have AIMS 2, V16, or earlier installed.1 Airplanes that have AIMS 2, V17, or later installed.2 777-200/-200LR/-300ER/777F airplanes delivered with MOV actuators P/N MA20A2027 or MA30A1001 that do not need to accomplish this service bulletin. -7 Airplanes that have AIMS 2, V16, or earlier installed.1 Airplanes that have AIMS 2, V17, or later installed.2 Airplane Models: 777-200, 777-200LR, 777-300, 777-300ER, 777F GroupVariable Number 4WA001 - WA017 4WA076 - WA080 4WA086 - WA093 4WA101 - WA104 4WA116 - WA119 4WA131 - WA137 4WA171 - WA175 4WA196 - WA198 4WA206 - WA212 4WA221 - WA223 4WA231 - WA232 4WA241 - WA250 4WA261 - WA266 4WA281 1WA282 7WA283 1WA301 - WA304 4WB001 - WB021 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 20 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 21 GroupVariable Number 4WB031 - WB046 4WB051 - WB088 4WB101 - WB106 4WB121 - WB125 4WB131 - WB139 1WB140 - WB141 7WB142 - WB148 4WB151 - WB155 4WB161 - WB175 1WB176 - WB177 4WB181 - WB192 1WB193 - WB194 4WB201 - WB214 1WB215 4WB231 - WB247 4WB271 - WB273 4WB276 - WB286 4WB291 - WB302 4WB306 - WB307 4WB311 - WB337 4WB341 - WB342 4WB366 - WB367 1WB368 4WB371 - WB388 4WB406 4WB411 - WB413 4WB416 - WB437 5WB438 - WB439 4WB446 - WB453 4WB476 4WB481 - WB484 4WB501 - WB507 1WB508 - WB511 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 21 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 22 GroupVariable Number 5WB512 4WB531 - WB537 4WB551 - WB554 4WB591 - WB595 1WB596 - WB597 4WB601 - WB606 4WB611 - WB618 1WB619 - WB622 4WB631 - WB638 4WB646 - WB649 4WC051 - WC073 4WC101 - WC104 4WC111 - WC114 1WC115 - WC116 7WC117 - WC120 7WC221 - WC224 4WC241 - WC243 4WC281 - WC286 1WC287 - WC290 4WC301 - WC302 1WC303 - WC308 4WC361 - WC362 1WC363 - WC364 4WC371 - WC372 1WC373 - WC374 1WC381 - WC390 7WC391 5WC392 - WC393 7WC394 - WC395 1WC441 1WC446 - WC448 7WC449 1WC456 - WC458 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 22 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 23 GroupVariable Number 7WC459 1WC486 - WC489 7WC490 - WC493 5WC506 7WC507 - WC508 7WC521 5WC522 7WC531 - WC536 7WC546 - WC548 7WC556 7WC566 - WC567 7WC571 - WC574 7WC581 7WC586 - WC587 7WC591 - WC595 3WD001 - WD002 7WD011 - WD018 7WD031 - WD036 7WD046 - WD055 7WD066 - WD075 7WD081 - WD089 7WD091 7WD096 7WD101 - WD106 7WD111 - WD112 7WD116 - WD117 7WD121 - WD122 2WD501 - WD504 7WD505 - WD513 2WD521 - WD532 6WD533 7WD534 - WD541 6WD546 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 23 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 24 GroupVariable Number 7WD547 - WD554 2WD561 - WD563 6WD564 7WD565 - WD573 2WD581 - WD586 6WD587 - WD588 7WD589 - WD599 2WD606 7WD607 - WD609 2WD621 - WD625 7WD626 - WD632 2WD651 - WD652 7WD653 - WD665 2WD671 - WD675 7WD676 - WD677 7WD691 - WD709 7WD741 - WD752 7WD761 - WD771 7WD786 - WD788 7WD796 - WD837 7WD846 - WD867 7WD871 - WD899 7WD911 - WD918 7WD921 - WD933 7WD936 - WD957 7WD966 - WD970 7WD981 - WD982 7WD986 - WD987 7WD991 - WD994 7WD996 7WE001 - WE007 7WE011 - WE012 7WE021 - WE026 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 24 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 25 GroupVariable Number 7WE031 - WE037 7WE051 - WE057 7WE071 - WE078 7WE081 - WE084 7WE091 - WE095 7WE126 - WE147 7WE151 - WE170 7WE176 - WE178 7WE186 - WE219 7WE226 - WE231 7WE236 - WE253 7WE261 - WE267 7WE271 - WE278 7WE291 - WE297 7WE301 - WE317 7WE331 - WE343 7WE351 - WE356 7WE376 - WE377 7WE381 7WE386 - WE387 7WE391 - WE392 7WE396 - WE400 7WE416 - WE420 7WE426 - WE428 7WE436 - WE439 7WE441 - WE445 7WE451 - WE458 7WE471 - WE474 7WE486 - WE491 7WE501 - WE504 7WE511 - WE513 7WE526 - WE528 7WE536 - WE539 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 25 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 26 GroupVariable Number 7WE556 - WE562 7WE566 - WE567 7WE591 7WE601 - WE604 7WE631 7WF001 - WF004 7WF016 - WF027 7WF031 - WF042 7WF046 - WF067 7WF075 - WF077 7WF081 - WF088 7WF096 - WF101 7WF106 - WF109 7WF111 - WF118 7WF121 - WF124 7WF131 - WF133 7WF136 - WF140 7WF146 - WF147 7WF151 - WF152 7WF156 - WF160 7WF166 - WF173 7WF176 - WF177 7WF181 - WF182 2. Spares Affected Examine your spares supply for the parts or components identified in Paragraph 2.C., Parts Necessary for Each Airplane. If any parts or components are found, refer to Paragraph 2.C., Parts Necessary for Each Airplane for the recommended use. B. Concurrent Requirements None. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 26 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 27 C. Reason Accomplishment of this service bulletin will prevent electrical current flow through Motor Operated Valve (MOV) actuators into the fuel tank. If this service bulletin is not done it is possible that a flow of electricity into the fuel tank could result in a potential source of ignition in a fuel tank and consequent fire or explosion. The Boeing system safety assessment necessary for Special Federal Aviation Regulation (SFAR) 88, showed that under specific conditions it was possible for electrical current to flow through certain MOV actuators into the fuel tank. A new MOV actuator is available to replace the existing MOV actuator with this condition. The new MOV actuator includes an internal electrical isolator to give the MOV actuator protection against electrical energy from lightning, 115 VAC hot shorts, and 28 VDC internal shorts. The new MOV actuator will prevent the flow of an electrical current into the fuel tank and increase the reliability of the fuel system. This service bulletin replaces the MOV actuator part number MA20A1001-1 with a new MOV actuator part number MA30A1001 or MA30A1017. This service bulletin gives instruction on how to measure the electrical resistance of bonds at the installed MOV actuator locations, how to prepare a faying surface for the installation of the new MOV actuator, how to prepare affected airplane parts, and how to install the new MOV actuator. After release of Revision 2 of this service bulletin, Boeing received reports of unserviceable MOV actuators part number MA30A1001. A condition was found where a single defect within an MOV actuator could result in incorrect operation, without any report of the defect. An MOV actuator with this defect, in the engine fuel spar MOV actuator location, could possibly not be able to isolate fuel from an engine fire. The new MOV actuators provided by Revision 3 of this service bulletin have been designed to divide the control and indication functions within the MOV actuator and thus remove this condition. Refer to APPENDIX A for a summary of service bulletin changes related to MOV actuator part number and AIMS version installed. NOTE: ITT part numbers for the MOV actuator are used in this service bulletin, equivalent Boeing MOV actuator part numbers are given in APPENDIX A. This service bulletin is the result of a safety assessment conducted by Boeing under SFAR 88, "Fuel Tank System Fault Tolerance Evaluation Requirements". Boeing Service Bulletin 777-31-0227 is related to this service bulletin, for AIMS 2 airplanes only. Boeing Service Related Problem (SRP) 777-SRP-28-0141 is related to this service bulletin. Boeing Fleet Team Digest (FTD) 777 FTD 28-12002, 777 FTD 28-11003 and 777 FTD 28-11001 are related to this service bulletin. Revision 1 is sent to correct the accomplishment instructions and to correct the MOV actuator part number. Revision 2 is sent to add a step to apply BMS 5-95 as cap seal on the bonding jumper fasteners, to clarify the quantity of BMS 5-95 consumed, and to clarify optional part numbers for BMS 5-95 when installing the MOV actuator. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 27 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 28 Revision 3 is sent to add a new Motor Operated Valve (MOV) actuator, part number MA30A1017, and a new APPENDIX A, to show the interchangeability with existing part numbers MA30A1001 and MA20A2027. The new MOV actuator is designed to divide the control and indication functions within the MOV actuator to remove a condition where a single defect within an MOV actuator could result in incorrect operation, without any report of the defect. This condition affects airplanes with both Airplane Information Management System (AIMS 1) and AIMS 2 systems. A software change will be made available in Boeing Service Bulletin 777-31-0227 for AIMS 2 airplanes, only. AIMS 2, V17 or later, will allow those airplanes to operate with specified MOV actuator part numbers installed at engine fuel spar locations. An MOV actuator change is necessary for AIMS 1 airplanes at the engine fuel spar locations, because an MOV actuator failure in this location could result in a failure to isolate fuel in the event of an engine fire, and no software solution is possible. As a result, at this revision, airplanes with AIMS 1 software that were in Group 1 are moved to new Group 4. In addition, airplanes that have MOV actuator P/N MA20A2027 installed that were in Group 2 are moved to new Group 3, for parts interchangeability. This revision also adds new Groups 5 and 6, to inspect for unserviceable MOV actuators that could have been accidentally installed on airplanes delivered with serviceable MOV actuators. Group 7 is added to define part interchangeability for the new MOV actuator, applicable to those airplanes. New configurations are added to Groups 1 thru 4, to identify previous incorporation of this service bulletin, and to all groups to show the possible AIMS hardware and software configurations related to the work in this service bulletin. This revision is also sent to adjust the routing of wire bundle W8473 to give clearance between the wire bundle and the Auxiliary Power Unit (APU) fuel isolation MOV actuator, to agree with the production configuration and to add reference to Federal Aviation Administration (FAA) Airworthiness Directive AD 2013-05-03 and Notice of Proposed Rule Making NPRM 2013-NM-204-AD. The data given in Alternative Method of Compliance Notice 777-28A0034-AMOC-01 is included in this revision. The data given in Information Notice 777-28A0034 IN04 is included in this revision. D. Description Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: MOTOR OPERATED VALVE ACTUATORS - INSPECTION AND REPLACEMENT 1. Get access to each MOV actuator. 2. Group 1-3, Configuration 2: Inspect each MOV actuator part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. If you are required to install the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017, you must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. 3. Group 1-4, Configuration 1: Remove the left and right engine fuel spar MOV actuator and install a new MOV actuator, part number MA30A1017, at those locations. You must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 28 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 29 4. Group 1-4, Configuration 1: Inspect each MOV actuator that is not installed at an engine fuel spar location for part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. If you are required to install the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017, you must do an electrical resistance check of each location. If the measured resistance is not acceptable, you must rework the faying bond and the airplane parts. This may require rework of the index plate and the adapter plate. This may require a tank entry to rework the interface between the adapter plate and the airplane structure. 5. Remove, change, and install the bracket at the Auxiliary Power Unit (APU) Isolation MOV actuator location to prevent part interference with the new MOV actuator part number MA30A1001 or MA30A1017. Install a new spacer on changed bracket to improve clearance to wire bundle W8473. 6. Close access to each MOV actuator. Group 1, Configuration 3-4; Group 2, Configuration 3-4; Group 3, Configuration 3-4; Group 4, Configuration 2: MORE WORK: MOTOR OPERATED VALVE ACTUATOR BONDING JUMPER - CAP SEAL 1. Apply a cap seal to the fasteners of the MOV actuator bonding jumpers. 2. Remove the wire bundle clamp adjacent to the APU fuel isolation MOV actuator. Adjust wire bundle W8473 and install the clamp with a new spacer to give clearance between wire bundle W8473 and the APU fuel isolation MOV actuator. 3. Group 1-3, Configuration 3; Group 4, Configuration 2: Replace the left and right engine fuel spar MOV actuators with MOV actuator part number MA30A1017. Group 1, Configuration 5-6; Group 2, Configuration 5-6; Group 3, Configuration 5-6; Group 4, Configuration 3: MORE WORK: LEFT WING - W8473 WIRE BUNDLE ROUTING - CHANGE 1. Remove the wire bundle clamp adjacent to the APU fuel isolation MOV actuator. Adjust wire bundle W8473 and install the clamp with a new spacer to give clearance between wire bundle W8473 and the APU fuel isolation MOV actuator. 2. Group 1-3, Configuration 5; Group 4, Configuration 3: Replace the left and right engine fuel spar MOV actuators with MOV actuator part number MA30A1017. Group 5-6: MOTOR OPERATED VALVE ACTUATORS - INSPECTION AND REPLACEMENT 1. Group 5-6, Configuration 1: Remove the left and right engine fuel spar MOV actuator and install a new MOV actuator, part number MA30A1017, at those locations. 2. Group 5-6, Configuration 1: Inspect each MOV actuator that is not installed at an engine fuel spar location for part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 29 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 30 3. Group 5-6, Configuration 2: Inspect each MOV actuator part number. If the MOV actuator part number is MA20A1001-1, remove, discard, and replace with the MOV actuator part number MA30A1001, MA20A2027 or MA30A1017. Group 7: No work is necessary for these airplanes. NOTE: Group 7 airplanes are only included in this service bulletin to define part interchangeability data. Refer to Paragraph 2.C.2., Parts and Materials Supplied by the Operator for more data. Revision 1 - No more work is necessary on airplanes changed as shown in the original issue of this service bulletin. Revision 2 - No more work is necessary on airplanes changed in accordance with the original issue or Revision 1 of this service bulletin. Revision 3 - Effects of this Issue on airplanes on which the Original Issue, Revision 1, or Revision 2 was previously done: ActionConditionGroup / Configuration Replace the left and right fuel spar MOV actuators with actuator P/N MA30A1017. Apply a cap seal to the fasteners of the MOV actuator bonding jumpers. Change the rout- ing of wire bundle W8473, adjacent to the Auxiliary Power Unit (APU) fuel isolation MOV actuator, to im- prove wire bundle clearance. Accomplished the Original Issue or Revision 1 of this service bulletin Group 1, 2, 3, Configuration 3 and Group 4, Configuration 2 Apply a cap seal to the fasteners of the MOV actuator bonding jumpers. Change the routing of wire bundle W8473, adjacent to the Auxiliary Power Unit (APU) fuel isolation MOV actuator, to improve wire bundle clearance. Accomplished the Original Issue or Revision 1 of this service bulletin Group 1, 2, 3, Configuration 4 Replace the left and right fuel spar MOV actuators with actuator P/N MA30A1017. Change the routing of wire bundle W8473, adjacent to the Auxiliary Power Unit (APU) fuel iso- lation MOV actuator, to improve wire bundle clearance. Accomplished Revision 2 of this service bulletin Group 1, 2, 3, Configuration 5 and Group 4, Configuration 3 Change the routing of wire bundle W8473, adjacent to the Auxiliary Power Unit (APU) fuel isolation MOV actuator, to improve wire bundle clearance. Accomplished Revision 2 of this service bulletin Group 1 , 2, 3, Configuration 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 30 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 31 NOTE: Group 7 airplanes are only included in this service bulletin to define MOV actuator part interchangeability data, in the maintenance zone locations given above. Refer to Paragraph 2.C.2., Parts and Materials Supplied by the Operator for more data. The work in this service bulletin is done in the maintenance zone(s) given below. Group 1, 4-5: Affected Maintenance Zones ZoneModel 531, 533, 543, 551, 631, 633, 643, 651777-200, 777-300 Group 2, 6: Affected Maintenance Zones ZoneModel 531, 533, 543, 551, 631, 633, 643, 651777-300ER Group 3: Affected Maintenance Zones ZoneModel 531, 533, 543, 551, 631, 633, 643, 651777-200LR Group 7: Affected Maintenance Zones ZoneModel 531, 533, 543, 551, 631, 633, 643, 651777-200, 777-200LR, 777- 300ER, 777F E. Compliance Federal Aviation Administration (FAA) Airworthiness Directive AD 2013-05-03 is related to this service bulletin. Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2013-NM-204-AD, is related to this service bulletin. Boeing recommends that the inspection and change given in this service bulletin be done within 60 months after the effective date of AD 2013-05-03. The effective date of AD 2013-05-03 is April 25, 2013. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 31 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 32 F. Approval This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable regulations and are FAA approved, as well as European Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other approved Boeing changes. If an airplane has a non-Boeing modification or repair that affects a component or system also affected by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this service bulletin. In addition, the Manager of the FAA Seattle Aircraft Certification Office approves the action (i.e. inspection or modification) defined in this service bulletin as an alternative method of compliance to the requirements of paragraphs (g), (h), (k) and (l) of AD 2013-05-03. All provisions of AD 2013-05-03 that are not specifically referenced in the above statement remain fully applicable and must be complied with. G. Manpower The tables below shows an estimate of the task hours necessary to do these work packages for each airplane. This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator task hour data if necessary. The estimate does not include lost time. These are some examples of lost time: • Time to adjust to the workplace • Time to schedule the work • Time to inspect the work • Time to cure the materials • Time to make the parts • Time to find the tools. Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1- 2; Group 4, Configuration 1: Work Package Versus Applicable MOV Actuator Equipment Numbers MOV Actuator Equipment No.Work Package No. V281641 V282642 V28163/V282633 V280234 V280315 V283106 V281667 V282668 V281669 V2826610 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 32 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 33 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1- 2; Group 4, Configuration 1: Work Package Versus Applicable MOV Actuator Equipment Numbers MOV Actuator Equipment No.Work Package No. V2816511 V2826512 Group 1-3, Configuration 1: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 1.251.251FIGURE 36 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 33 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 34 Group 1-3, Configuration 1: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1-3, Configuration 2: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 1 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 34 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 35 Group 1-3, Configuration 2: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 4, Configuration 1: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 1.751.751FIGURE 35 (a) 0.250.251Remove MOV actua- tor (b) 1.001.001FIGURE 2 (b) 1.001.001FIGURE 3 (b) 0.500.501FIGURE 4 (b) 8.0032.004MOV access/ fuel tank entry (b) (c) 1.002.002Remove adapter plate and adapter shaft (b) (c) 1.001.001FIGURE 8 (b) (c) 1.002.002Install adapter plate and adapter shaft (b) (c) 0.500.501FIGURE 4 (b) (c) 1.501.501FIGURE 5 (b) 0.500.501FIGURE 6 (b) 0.500.501Install index plate (b) 1.251.251FIGURE 36 (b) 4.008.002Close fuel tank ac- cess (b) (c) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 35 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 36 Group 4, Configuration 1: Work Package 1 Elapsed HoursTask HoursNumber of PersonsTask 0.100.101Close MOV actuator access (f)(f)TOTAL FOR EACH AIRPLANE (d) (f)(f)TOTAL FOR EACH AIRPLANE (e) (a) This Task is only necessary for airplanes that do not find MOV actuator part number MA20A1001-1 during the part number inspection. (b) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (c) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (d) This total is for airplanes that do not find MOV actuator part number MA20A1001-1 during the part number inspection. (e) This total is for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (f) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1-3, Configuration 1: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 36 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 37 Group 1-3, Configuration 1: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 1.251.251FIGURE 36 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1-3, Configuration 2: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 9 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 37 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 38 Group 1-3, Configuration 2: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 4, Configuration 1: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 1.751.751FIGURE 37 (a) 0.250.251Remove MOV actua- tor (b) 1.001.001FIGURE 2 (b) 1.001.001FIGURE 3 (b) 0.500.501FIGURE 4 (b) 8.0032.004MOV access/ fuel tank entry (b) (c) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 38 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 39 Group 4, Configuration 1: Work Package 2 Elapsed HoursTask HoursNumber of PersonsTask 1.002.002Remove adapter plate and adapter shaft (b) (c) 1.001.001FIGURE 8 (b) (c) 1.002.002Install adapter plate and adapter shaft (b) (c) 0.500.501FIGURE 4 (b) (c) 1.501.501FIGURE 5 (b) 0.500.501FIGURE 6 (b) 0.500.501Install index plate (b) 1.251.251FIGURE 36 (b) 4.008.002Close fuel tank ac- cess (b) (c) 0.100.101Close MOV actuator access (f)(f)TOTAL FOR EACH AIRPLANE (d) (f)(f)TOTAL FOR EACH AIRPLANE (e) (a) This Task is only necessary for airplanes that do not find MOV actuator part number MA20A1001-1 during the part number inspection. (b) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (c) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (d) This total is for airplanes that do not find MOV actuator part number MA20A1001-1 during the part number inspection. (e) This total is for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (f) The total task hours and elapsed hours are not given as the work necessary is variable. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 39 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 40 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 3 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.500.501FIGURE 10 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 40 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 41 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 4 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.500.501FIGURE 11 0.250.251Remove MOV actua- tor 0.250.251FIGURE 21 0.500.501Close MOV actuator access 2.102.60TOTAL FOR EACH AIRPLANE Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 5 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.500.501FIGURE 12 0.250.251Remove MOV actua- tor 2.002.001FIGURE 13 0.250.251FIGURE 21 0.500.501Close MOV actuator access 4.104.60TOTAL FOR EACH AIRPLANE Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 6 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 41 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 42 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 6 Elapsed HoursTask HoursNumber of PersonsTask 0.250.251FIGURE 14 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1, Configuration 1-2; Group 4, Configuration 1: Work Package 7 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 42 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 43 Group 1, Configuration 1-2; Group 4, Configuration 1: Work Package 7 Elapsed HoursTask HoursNumber of PersonsTask 0.100.101Open MOV actuator access 0.500.501FIGURE 15 0.250.251Remove MOV actua- tor 0.250.251FIGURE 22 0.500.501Close MOV actuator access 2.102.60TOTAL FOR EACH AIRPLANE Group 1, Configuration 1-2; Group 4, Configuration 1: Work Package 8 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.500.501FIGURE 16 0.250.251Remove MOV actua- tor 0.250.251FIGURE 22 0.500.501Close MOV actuator access 2.102.60TOTAL FOR EACH AIRPLANE Group 2, Configuration 1-2; Group 3, Configuration 1-2: Work Package 9 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 17 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 43 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 44 Group 2, Configuration 1-2; Group 3, Configuration 1-2: Work Package 9 Elapsed HoursTask HoursNumber of PersonsTask 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 2, Configuration 1-2; Group 3, Configuration 1-2: Work Package 10 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 18 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 44 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 45 Group 2, Configuration 1-2; Group 3, Configuration 1-2: Work Package 10 Elapsed HoursTask HoursNumber of PersonsTask 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 11 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 19 0.250.251Remove MOV actua- tor Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 45 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 46 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 11 Elapsed HoursTask HoursNumber of PersonsTask 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 12 Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Prepare 0.100.101Open MOV actuator access 0.250.251FIGURE 20 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 46 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 47 Group 1, Configuration 1-2; Group 2, Configuration 1-2; Group 3, Configuration 1-2; Group 4, Configuration 1: Work Package 12 Elapsed HoursTask HoursNumber of PersonsTask 0.250.251Remove MOV actua- tor 1.001.001FIGURE 2 1.001.001FIGURE 3 0.500.501FIGURE 4 8.0032.004MOV access/ fuel tank entry (a) 1.002.002Remove adapter plate and adapter shaft (a) 1.001.001FIGURE 8 (a) 1.002.002Install adapter plate and adapter shaft (a) 0.500.501FIGURE 4 (a) 1.501.501FIGURE 5 0.500.501FIGURE 6 0.500.501Install index plate 0.250.251FIGURE 7 4.008.002Close fuel tank ac- cess (a) 0.100.101Close MOV actuator access (b)(b)TOTAL FOR EACH AIRPLANE (a) Task is associated with a tank entry. A tank entry should not be likely. A tank entry is only necessary if the electrical bonding resistance measurement is not satisfactory. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 1, Configuration 4: More Work - Operators that have Accomplished the Original Issue or Revision 1 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 1.501.501Open Access 0.150.151FIGURE 23 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 47 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 48 Group 1, Configuration 4: More Work - Operators that have Accomplished the Original Issue or Revision 1 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 0.150.151FIGURE 24 0.150.151FIGURE 25 0.150.151FIGURE 26 0.250.251FIGURE 34 0.150.151FIGURE 27 0.150.151FIGURE 28 0.150.151FIGURE 29 0.150.151FIGURE 32 0.150.151FIGURE 33 1.501.501Close Access 4.604.60TOTAL FOR EACH AIRPLANE Group 2-3, Configuration 4: More Work - Operators that have Accomplished the Original Issue or Revision 1 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 1.501.501Open Access 0.150.151FIGURE 23 0.150.151FIGURE 24 0.150.151FIGURE 25 0.150.151FIGURE 26 0.250.251FIGURE 34 0.150.151FIGURE 27 0.150.151FIGURE 30 0.150.151FIGURE 31 0.150.151FIGURE 32 0.150.151FIGURE 33 1.501.501Close Access 4.604.60TOTAL FOR EACH AIRPLANE Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 48 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 49 Group 1-3, Configuration 3; Group 4, Configuration 2: More Work - Operators that have Accomplished the Original Issue or Revision 1 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 1.501.501Open Access 1.751.751FIGURE 35 1.751.751FIGURE 37 0.150.151FIGURE 25 0.150.151FIGURE 26 0.250.251FIGURE 34 0.150.151FIGURE 27 0.150.151FIGURE 28 0.150.151FIGURE 29 0.150.151FIGURE 32 0.150.151FIGURE 33 1.501.501Close Access 7.807.80TOTAL FOR EACH AIRPLANE Group 1-3, Configuration 6: More Work - Operators that have Accomplished Revision 2 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 0.500.501Open Access 0.250.251FIGURE 34 0.500.501Close Access 1.251.25TOTAL FOR EACH AIRPLANE Group 1-3, Configuration 5; Group 4, Configuration 3: More Work - Operators that have Accomplished Revision 2 of this Service Bulletin Elapsed HoursTask HoursNumber of PersonsTask 0.500.501Open Access 0.250.251FIGURE 34 1.751.751FIGURE 35 1.751.751FIGURE 37 0.500.501Close Access 4.754.75TOTAL FOR EACH AIRPLANE Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 49 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 50 Group 5, Configuration 1: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 0.750.751Open Access 0.500.501FIGURE 10 0.250.251FIGURE 11 0.250.251FIGURE 12 0.250.251FIGURE 14 0.250.251FIGURE 15 0.250.251FIGURE 16 0.250.251FIGURE 19 0.250.251FIGURE 20 1.751.751FIGURE 35 (a) 1.751.751FIGURE 37 (a) 1.501.501FIGURE 40 (a) 1.501.501FIGURE 41 (a) 2.252.251FIGURE 42 (a) 2.502.501FIGURE 43 (a) 1.501.501FIGURE 44 (a) 2.502.501FIGURE 45 (a) 2.502.501FIGURE 46 (a) 1.501.501FIGURE 49 (a) 1.501.501FIGURE 50 (a) 0.750.751Close Access (b)(b)TOTAL FOR EACH AIRPLANE (a) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 5, Configuration 2: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 0.750.751Open Access 0.250.251FIGURE 1 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 50 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 51 Group 5, Configuration 2: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 0.250.251FIGURE 9 0.500.501FIGURE 10 0.250.251FIGURE 11 0.250.251FIGURE 12 0.250.251FIGURE 14 0.250.251FIGURE 15 0.250.251FIGURE 16 0.250.251FIGURE 19 0.250.251FIGURE 20 1.751.751FIGURE 38 (a) 1.751.751FIGURE 39 (a) 1.501.501FIGURE 40 (a) 1.501.501FIGURE 41 (a) 2.252.251FIGURE 42 (a) 2.502.501FIGURE 43 (a) 1.501.501FIGURE 44 (a) 2.502.501FIGURE 45 (a) 2.502.501FIGURE 46 (a) 1.501.501FIGURE 49 (a) 1.501.501FIGURE 50 (a) 0.750.751Close Access (b)(b)TOTAL FOR EACH AIRPLANE (a) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 6, Configuration 1: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 1.001.001Open Access 0.500.501FIGURE 10 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 51 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 52 Group 6, Configuration 1: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 0.250.251FIGURE 11 0.250.251FIGURE 12 0.250.251FIGURE 14 0.250.251FIGURE 17 0.250.251FIGURE 18 0.250.251FIGURE 19 0.250.251FIGURE 20 1.751.751FIGURE 35 (a) 1.751.751FIGURE 37 (a) 1.501.501FIGURE 40 (a) 1.501.501FIGURE 41 (a) 2.252.251FIGURE 42 (a) 2.502.501FIGURE 43 (a) 1.501.501FIGURE 44 (a) 2.502.501FIGURE 47 (a) 2.502.501FIGURE 48 (a) 1.501.501FIGURE 49 (a) 1.501.501FIGURE 50 (a) 1.001.001Close Access (b)(b)TOTAL FOR EACH AIRPLANE (a) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 6, Configuration 2: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 1.001.001Open Access 0.250.251FIGURE 1 0.250.251FIGURE 9 0.500.501FIGURE 10 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 52 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 53 Group 6, Configuration 2: Work Package 13: Motor Operated Valve Actuator - Inspection and Replacement Elapsed HoursTask HoursNumber of PersonsTask 0.250.251FIGURE 11 0.250.251FIGURE 12 0.250.251FIGURE 14 0.250.251FIGURE 17 0.250.251FIGURE 18 0.250.251FIGURE 19 0.250.251FIGURE 20 1.751.751FIGURE 38 (a) 1.751.751FIGURE 39 (a) 1.501.501FIGURE 40 (a) 1.501.501FIGURE 41 (a) 2.252.251FIGURE 42 (a) 2.502.501FIGURE 43 (a) 1.501.501FIGURE 44 (a) 2.502.501FIGURE 47 (a) 2.502.501FIGURE 48 (a) 1.501.501FIGURE 49 (a) 1.501.501FIGURE 50 (a) 1.001.001Close Access (b)(b)TOTAL FOR EACH AIRPLANE (a) This Task is only necessary for airplanes that find MOV actuator part number MA20A1001-1 during the part number inspection. (b) The total task hours and elapsed hours are not given as the work necessary is variable. Group 7: None. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 53 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 54 H. Weight and Balance Changes Group 1, Configuration 1-3, 5; Group 2, Configuration 1-3, 5; Group 3, Configuration 1-3, 5; Group 4-6: Change in Moment (Pound-Inches) Change in Weight (Pounds)Airplane +260 (a)+0.40 (a)EACH MOV ACTUATOR (a) The values given for the change in weight and change in moment are for the replacement of one MOV actuator. For the total change in weight, operators must multiply the number of MOV actuators replaced by +0.40 (change in weight for one MOV actuator). For the total change in moment, operators must multiply the total change in weight by 650. (b) The maximum number of MOV actuator replacements is 11. Group 1, Configuration 4, 6; Group 2, Configuration 4, 6; Group 3, Configuration 4, 6; Group 7: None. I. Electrical Load Data Not changed. J. References 1. Existing Data: a. Engineering Change Memo PRR 61998-3, PRR 61777-233R. b. Boeing Service Bulletin 777-31-0227. c. Boeing Service Related Problem (SRP) 777-SRP-28-0141. d. Federal Aviation Administration (FAA) Airworthiness Directive (AD) 2013-05-03. e. Federal Aviation Administration (FAA) Notice of Proposed Rule Making (NPRM) 2013-NM-204-AD f. Service Bulletin Index D624W001. g. Standard Overhaul Practices Manual (SOPM) 20-30-03, 20-41-02, 20-43-03, 20-50-01, 20-50-10. h. Standard Wiring Practices Manual (SWPM) 20-10-11, 20-10-12, 20-10-19, 20-20-00. i. 777 Aircraft Maintenance Manual (AMM) 06-44-00, 28-22-01, 28-22-02, 28-22-03, 28-22-04, 28-25-02, 28-25-05, 28-26-01, 28-26-02, 28-31-02, 28-31-03, 28-31-04, 28-31-05, 32-00-15, 32-00-30. j. 777 Fleet Team Digest (FTD) 28-11001, 28-11003, 28-12002. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 54 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 55 k. 777 Maintenance Planning Data (MPD) Section 9: Airworthiness Limitations, 28-AWL-19. 2. Data Supplied with this Service Bulletin: None. 3. Installation Drawings Used in the Preparation of this Service Bulletin: TitleDrawing Number Equipment Inst - Engine Fuel Feed System343W3001 Equipment Inst - Refueling and Jettison System344W3001 Equipment Inst - APU Fuel Feed (wing)346W3001 The table above lists applicable drawings used to prepare this service bulletin. The drawings are not necessary to make the specified changes, and are not supplied with this service bulletin. The drawings may not be applicable to all airplane configurations or operators. K. Publications Affected 1. Publications: Chapter-SectionPublication 28-22, 28-25, 28-26, 28-31777 Aircraft Maintenance Manual 28-22, 28-25, 28-26, 28-31777 Illustrated Parts Catalog Section 9777 Maintenance Planning Data 2. Damage Tolerance Based Structural Inspections: Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary. L. Interchangeability and Intermixability of Parts Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability information. M. Software Accomplishment Summary Not affected. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 55 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 56 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 56 of 213 BOEING SERVICE BULLETIN 777-28A0034 BLANK PAGE ### Page 57 2. MATERIAL INFORMATION A. Material - Price and Availability The operator can supply the parts and materials shown in Paragraph 2.C., Parts Necessary for Each Airplane. As an alternative, operators can purchase the parts from Boeing Spares. This service bulletin does not show the Boeing price and supply data. B. Industry Support Information Boeing warranty remedies are not available for the configuration changes given in this service bulletin. C. Parts Necessary for Each Airplane 1. Kits/Parts: None. 2. Parts and Materials Supplied by the Operator: Group 1, Configuration 1: NotesNameQTYPart Number / Specification Replaces MA20A1001-1 at the left and right engine fuel spar MOV locations only. (g) Motor Operated Valve Actuator2MA30A1017 (a) Replaces MA20A1001-1 at MOV locations that are not the left and right engine fuel spar MOV. (g) Motor Operated Valve Actuator9MA30A1001, MA20A2027 or MA30A1017 option- al (a) (b) (c) (e) (f)Pressure and Environmental Sealant-Chromate Type, Class B 66 ozBMS 5-95 (d)Bonding Jumper, 5 inch6BACJ40A20-5 (d)Bonding Jumper, 6 inch3BACJ40A20-6 (d)Bonding Jumper, 7 inch1BACJ40A20-7 (d)Bonding Jumper, 9 inch1BACJ40A20-9 (h)Colored Chemical Conversion Coat- ing for Aluminum, Type 2, Class A 4 ozSOPM 20-43-03 (f)Chemical and Solvent Resistant Finish (Primer) 4 oz.BMS 10-11, Type 1 Lockwire12 feet MS20995NC32 (f)Spacer1NAS42DD6-100FC (f)Screw1BACS12GU3K32 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 57 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 58 Group 1, Configuration 1: NotesNameQTYPart Number / Specification (a) Supplier: ITT Aerospace Controls 28150 Industry Drive, Valencia, CA, 91355 USA. (b) For use on surfaces outside of a fuel tank that may be exposed to fuel. (c) BMS 5-45 Fuel Tank Sealant is optional (BAC5117-6). (d) These parts are optional. The new MOV actuator installation may require that a longer bonding jumper be installed to reach the bonding jumper mounting screw on either side of the MOV actuator. (e) BMS 5-45 or BMS 5-142 can be used as a substitute for BMS 5-95 for the application of a cap seal on the MOV actuator bonding jumper fasteners as described in the work packages of this service bulletin. (f) Refer to the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. (g) The quantity given is the maximum number of MOV Actuators if replacement is necessary at all locations. (h) Operators can use manual application MIL-C-5541, Class 1A coating as an equivalent to BAC 5626 Type 2, Class A coating. Group 1, Configuration 2: NotesNameQTYPart Number / Specification Replaces MA20A1001-1 (g) Motor Operated Valve Actuator11MA30A1001, MA20A2027 or MA30A1017 option- al (a) (b) (c) (e) (f)Pressure and Environmental Sealant-Chromate Type, Class B 66 ozBMS 5-95 (d)Bonding Jumper, 5 inch6BACJ40A20-5 (d)Bonding Jumper, 6 inch3BACJ40A20-6 (d)Bonding Jumper, 7 inch1BACJ40A20-7 (d)Bonding Jumper, 9 inch1BACJ40A20-9 (h)Colored Chemical Conversion Coat- ing for Aluminum, Type 2, Class A 4 oz.SOPM 20-43-03 (f)Chemical and Solvent Resistant Finish (Primer) 4 oz.BMS 10-11, Type 1 Lockwire12 feet MS20995NC32 (f)Spacer1NAS42DD6-100FC Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 58 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 59 Group 1, Configuration 2: NotesNameQTYPart Number / Specification (f)Screw1BACS12GU3K32 (a) Supplier: ITT Aerospace Controls 28150 Industry Drive, Valencia, CA, 91355 USA. (b) For use on surfaces outside of a fuel tank that may be exposed to fuel. (c) BMS 5-45 Fuel Tank Sealant is optional (BAC5117-6). (d) These parts are optional. The new MOV actuator installation can require a longer bonding jumper be installed to reach the bonding jumper mounting screw on either side of the MOV actuator. (e) BMS 5-45 or BMS 5-142 can be used as a substitute for BMS 5-95 for the application of a cap seal on the MOV actuator bonding jumper fasteners as described in the work packages of this service bulletin. (f) Refer to the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. (g) The quantity given is the maximum number of MOV Actuators if replacement is necessary at all locations. (h) Operators can use manual application MIL-C-5541, Class 1A coating as an equivalent to BAC 5626 Type 2, Class A coating. Group 2, Configuration 1: NotesNameQTYPart Number / Specification Replaces MA20A1001-1 at the left and right engine fuel spar MOV locations only. (g) Motor Operated Valve Actuator2MA30A1017 (a) Replaces MA20A1001-1 at MOV locations that are not the left and right engine fuel spar MOV. (g) Motor Operated Valve Actuator9MA30A1001, MA20A2027 or MA30A1017 option- al (a) (b) (c) (e) (f)Pressure and Environmental Sealant-Chromate Type, Class B 66 ozBMS 5-95 (d)Bonding Jumper, 5 inch6BACJ40A20-5 (d)Bonding Jumper, 6 inch1BACJ40A20-6 (d)Bonding Jumper, 7 inch3BACJ40A20-7 (d)Bonding Jumper, 9 inch1BACJ40A20-9 (h)Colored Chemical Conversion Coat- ing for Aluminum, Type 2, Class A 4 oz.SOPM 20-43-03 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 59 of 213 BOEING SERVICE BULLETIN 777-28A0034 ### Page 60 Group 2, Configuration 1: NotesNameQTYPart Number / Specification (f)Chemical and Solvent Resistant Finish (Primer) 4 oz.BMS 10-11, Type 1 Lockwire12 feet MS20995NC32 (f)Spacer1NAS42DD6-100FC (f)Screw1BACS12GU3K32 (a) Supplier: ITT Aerospace Controls 28150 Industry Drive, Valencia, CA, 91355 USA. (b) For use on surfaces outside of a fuel tank that may be exposed to fuel. (c) BMS 5-45 Fuel Tank Sealant is optional (BAC5117-6). (d) These parts are optional. The new MOV actuator installation can require a longer bonding jumper be installed to reach the bonding jumper mounting screw on either side of the MOV actuator. (e) BMS 5-45 or BMS 5-142 can be used as a substitute for BMS 5-95 for the application of a cap seal on the MOV actuator bonding jumper fasteners as described in the work packages of this service bulletin. (f) Refer to the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. (g) The quantity given is the maximum number of MOV Actuators if replacement is necessary at all locations. (h) Operators can use manual application MIL-C-5541, Class 1A coating as an equivalent to BAC 5626 Type 2, Class A coating. Group 2, Configuration 2: NotesNameQTYPart Number / Specification Replaces MA20A1001-1 (g) Motor Operated Valve Actuator11MA30A1001, MA20A2027 or MA30A1017 option- al (a) (b) (c) (e) (f)Pressure and Environmental Sealant-Chromate Type, Class B 66 ozBMS 5-95 (d)Bonding Jumper, 5 inch6BACJ40A20-5 (d)Bonding Jumper, 6 inch1BACJ40A20-6 (d)Bonding Jumper, 7 inch3BACJ40A20-7 (d)Bonding Jumper, 9 inch1BACJ40A20-9 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 02, 2007 777-28A0034Revision 3: September 25, 2015 60 of 213 BOEING SERVICE BULLETIN 777-28A0034 The text continues at https://openairdocs.org/service-documents/boeing/777-28a0034/file/fe82758e4103.md?from=61 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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