# Boeing Alert Service Bulletin 767-38A0073: Boeing Service Bulletin - Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2014-0571; AD 2017-02-03 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Boeing Alert Service Bulletin 767-38A0073](https://openairdocs.org/service-documents/boeing/767-38a0073.md) - Title as filed: Boeing Service Bulletin - Pages: 206 - PDF: https://openairdocs.org/files/sha256/92/9c/929c30cd74c3a4fbdce260db62d078a3e3d4b4c7dfd25c158124ec2b60fbfc53 - Page: https://openairdocs.org/service-documents/boeing/767-38a0073/file/929c30cd74c3 ## 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 767 Service Bulletin ALERT Number: 767-38A0073 Original Issue: November 12, 2013 ATA System: 3810 3071 SUBJECT: WATER/WASTE - Potable - Section 41 Potable Water Couplings Inspection and Replacement and Spray Shroud Installation 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 © 2013 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 Unpublished Work.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: November 12, 2013 767-38A0073 1 of 206 5.0 ### Page 2 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 2 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT BLANK PAGE ### Page 3 Table of Contents S u m m a r y ...................................................... 7 1. PLANNING INFORMATION ........................................ 1 3 A . E f f e c t i v i t y ............................................... 1 3 1. Airplanes ............................................ 1 3 2 . S p a r e s A f f e c t e d ........................................ 1 8 B. Concurrent Requirements ...................................... 1 8 C. Reason ................................................ 1 8 D. Description .............................................. 1 9 E. Compliance .............................................. 2 0 F . A p p r o v a l ............................................... 2 2 G. Manpower .............................................. 2 2 H. Weight and Balance Changes .................................... 3 7 I. Electrical Load Data ......................................... 3 7 J . R e f e r e n c e s .............................................. 3 7 1. Existing Data: ......................................... 3 7 2. Data Supplied with this Service Bulletin: ........................... 3 7 3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 3 7 K. Publications Affected ........................................ 3 8 L. Interchangeability and Intermixability of Parts ........................... 3 8 M. Software Accomplishment Summary ................................ 3 8 2. MATERIAL INFORMATION ........................................ 3 9 A. Material - Price and Availability ................................... 3 9 B. Industry Support Information .................................... 4 1 C. Parts Necessary for Each Airplane ................................. 4 1 1 . K i t s / P a r t s : ........................................... 4 1 2. Parts and Materials Supplied by the Operator: ........................ 4 7 3. Parts Modified and Reidentified: ............................... 4 8 4. Parts Removed and Not Replaced: .............................. 4 8 D. Parts Necessary to Change Spares ................................. 4 9 E. Special Tooling - Price and Availability ............................... 4 9 F. Special Tooling Necessary to do this Service Bulletin ....................... 4 9 3. ACCOMPLISHMENT INSTRUCTIONS .................................. 5 1 A. GENERAL INFORMATION ..................................... 5 1 B. WORK INSTRUCTIONS ....................................... 5 3 FIGURE 1: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 1 AND 3 INSPECTION [Group 1, 3-4, 6-7, 10-13] ................ 5 9 FIGURE 2: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 INSPECTION [Group 1-2, 9, 11] ........................ 6 2 FIGURE 3: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 INSPECTION [Group 4-6, 10, 12-13] ..................... 6 4 FIGURE 4: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 INSPECTION [Group 7-8] ........................... 6 6 FIGURE 5: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 INSPECTION [Group 3] ............................ 6 8 FIGURE 6: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 INSPECTION [Group 1-2, 7-8, 11] ....................... 7 1 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 3 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 4 FIGURE 7: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 INSPECTION [Group 4-5, 12] ......................... 7 3 FIGURE 8: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 INSPECTION [Group 9] ............................ 7 5 FIGURE 9: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 INSPECTION [Group 6, 10, 13] ........................ 7 7 FIGURE 10: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 INSPECTION [Group 3] ............................ 8 2 FIGURE 11: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 2 INSPECTION [Group 5, 10, 12] ........................ 8 5 FIGURE 12: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 6 AND 9 INSPECTION [Group 11] ........................ 8 7 FIGURE 13: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 7 INSPECTION [Group 9] ............................ 9 0 FIGURE 14: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 8 INSPECTION [Group 10] ............................ 9 2 FIGURE 15: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 1 AND 3 SPRAY SHROUD INSTALLATION [Group 1, 3-4, 6-7, 10-13] .... 9 4 FIGURE 16: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 SPRAY SHIELD INSTALLATION [Group 1-2, 9, 11] ............ 1 0 0 FIGURE 17: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 SPRAY SHIELD INSTALLATION [Group 4-6, 10, 12-13] .......... 1 0 3 FIGURE 18: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 SPRAY SHIELD INSTALLATION [Group 7-8] ................ 1 0 6 FIGURE 19: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 SPRAY SHIELD INSTALLATION [Group 3] ................. 1 0 9 FIGURE 20: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHIELD INSTALLATION [Group 1-2, 7-8, 11-12] .......... 1 1 2 FIGURE 21: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHIELD INSTALLATION [Group 4-5, 12] .............. 1 1 6 FIGURE 22: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHIELD INSTALLATION [Group 9] ................. 1 1 9 FIGURE 23: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHIELD INSTALLATION [Group 10] ................ 1 2 3 FIGURE 24: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHROUD INSTALLATION [Group 13] ............... 1 2 7 FIGURE 25: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHROUD INSTALLATION [Group 6] ................ 1 3 1 FIGURE 26: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 SPRAY SHROUD INSTALLATION [Group 3] ................ 1 3 5 FIGURE 27: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 2 SPRAY SHROUD INSTALLATION [Group 5, 10, 12] ............ 1 3 9 FIGURE 28: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 6 SPRAY SHROUD INSTALLATION AND LOCATION 9 ISOLATION [Group 11] ................................................. 1 4 2 FIGURE 29: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 7 SPRAY SHROUD INSTALLATION [Group 9] ................ 1 5 1 FIGURE 30: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 8 SPRAY SHROUD INSTALLATION [Group 10] ............... 1 5 7 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 4 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 5 FIGURE 31: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 1 AND 3 REPLACEMENT [Group 1, 3-4, 6-7, 10-13] ............. 1 6 3 FIGURE 32: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 REPLACEMENT [Group 1-2, 9, 11] ..................... 1 6 6 FIGURE 33: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 REPLACEMENT [Group 4-6, 10, 12-13] ................... 1 6 9 FIGURE 34: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 REPLACEMENT [Group 7-8] ......................... 1 7 2 FIGURE 35: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 4 REPLACEMENT [Group 3] .......................... 1 7 5 FIGURE 36: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 REPLACEMENT [Group 1-2, 7-8, 11] .................... 1 7 8 FIGURE 37: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 REPLACEMENT [Group 4-5, 12] ....................... 1 8 1 FIGURE 38: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 REPLACEMENT [Group 9] .......................... 1 8 4 FIGURE 39: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 REPLACEMENT [Group 6, 10, 13] ...................... 1 8 7 FIGURE 40: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 5 REPLACEMENT [Group 3] .......................... 1 9 2 FIGURE 41: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 2 REPLACEMENT [Group 5, 10, 12] ...................... 1 9 5 FIGURE 42: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 6 AND 9 REPLACEMENT [Group 11] ..................... 1 9 7 FIGURE 43: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 7 REPLACEMENT [Group 9] .......................... 2 0 0 FIGURE 44: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 8 REPLACEMENT [Group 10] ......................... 2 0 2 APPENDIX A: GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED FIGURES . . . 204 APPENDIX B: POTABLE WATER SYSTEM COUPLING - IDENTIFICATION ............... 2 0 5 APPENDIX C: POTABLE WATER SYSTEM COUPLING - INSTALLATION ................ 2 0 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 5 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 6 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT BLANK PAGE ### Page 7 Commercial Airplanes 767 Service Bulletin ALERT SummaryNumber: 767-38A0073Original Issue: November 12, 2013 ATA System: 3810 3071 SUBJECT: WATER/WASTE - Potable - Section 41 Potable Water Couplings Inspection and Replacement and Spray Shroud Installation THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER. CONCURRENT REQUIREMENTS None. BACKGROUND Accomplishment of this service bulletin will make sure that the potable water system couplings in section 41 do not leak onto electrical equipment. If this service bulletin is not done, an uncontrolled water leak from a defective potable water system coupling could cause the Main Equipment Center (MEC) Line Replaceable Units (LRU's) to become wet. Wet Main Equipment Center (MEC) Line Replaceable Units (LRU's) could result in an electrical short and potential loss of several functions essential for safe flight. An operator reported problems with the Engine Indication and Crew Alerting System (EICAS) display system during flight. An investigation of the event determined that it was caused by a water leak from a fractured plastic potable water coupling. Boeing analysis of all 767 models, based on delivered configurations, identified nine possible coupling locations as being near enough to electrical LRU's to cause a potential problem if water leaked from them. To reduce this risk, plastic couplings have now been made one way replaceable by metal couplings. Plastic couplings were delivered on airplanes between line numbers 534 and 890. Plastic couplings have also been listed as two-way interchangeable with metal couplings applicable to 767 passenger airplanes up to line number 1062, thus, the changes in this service bulletin are applied to line numbers 534 thru 1062. Any plastic couplings found in the identified locations will be replaced with metal couplings. In addition, to further protect LRU's, spray shrouds, used on all new production airplanes, will be installed on operational airplanes to cover the identified couplings, to direct any leakage away from electrical equipment. This service bulletin gives instructions to inspect and replace plastic potable water couplings with metal couplings in the identified locations in Section 41. In addition, spray shrouds and shields are installed to cover the identified couplings. Installation of new metal couplings will reduce the chance of uncontrolled water leakage and the spray shrouds will protect essential electrical systems should a leak occur. Boeing Service Related Problem (SRP) 767-SRP-38-0063 is related to this service bulletin. Boeing Fleet Team Digest (FTD) 767 FTD 38-12001 is related to this service bulletin. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 7 of 206 ### Page 8 This table is provided to operators for planning purposes only. Refer to the applicable sections for more information. ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Paragraph 1.E., Compliance and Paragraph 1.F., Approval. Refer to AD worksheet 13-AD- 25. YesAD Related Paragraph 1.H., Weight and Balance Changes. Group 11 only. YesWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedYesPublications Affected Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Air- plane Flight Manual) Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator. Group 9 thru 11 only. YesOperator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR B12901-113S) PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get Access to the portable water system tubing in Section 41. 2. Do a general visual inspection in coupling locations 1 thru 6 and 9 for any plastic coupling in the potable water system. a. If no plastic coupling is found no more work is necessary for those locations. b. If any plastic coupling is found replace the coupling with an equivalent metal coupling. 3. Close access. Group 9-10: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get Access to the portable water system tubing in Section 41. 2. Do a general visual inspection in coupling locations 7 or 8, for any plastic coupling, in the potable water system. a. If no plastic coupling is found no more work is necessary for those locations. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 8 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 9 b. If any plastic coupling is found, replace the coupling with an equivalent metal coupling. 3. Close access. PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION 1. Get Access to the portable water system tubing in Section 41. 2. Install spray shrouds around metal couplings in coupling locations 1 thru 6. 3. Group 9-10: Install spray shrouds around metal couplings at coupling locations 7 or 8. 4. Group 11: Remove two hose assemblies and related parts between location 9 and location 6. Install one new hose assembly at location 6. 5. Close access. EFFECTIVITY 767-200/300/400ER Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s). COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory. Refer to Paragraph 1.E., Compliance. INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of July 7, 2012. Please refer to Paragraph 2.B., Industry Support Information. The warranty remedies will expire eight years from the original issue date of this service bulletin. MANPOWER Refer to Paragraph 1.G., Manpower. MATERIAL INFORMATION Boeing Supplied Kits/Parts with Operator Supplied Parts/Materials. 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: November 12, 2013 767-38A0073 9 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 10 (OCR) BOEING SERVICE BULLETIN 767-38A0073 ALERT ALERT STA A PART 2 AND PART 3 WORK STA 240 PART 1 AND PART 3 WORK 000 REFER TO APPENDIX A FOR COUPLING LOCATION APPLICABILITY. PARTS 1 THRU 3 THAT FOLLOW GIVE THE RANGE OF POSSIBLE COUPLING LOCATIONS, REFERRED TO AS "LOCATIONS", FOR THE GIVEN GROUP APPLICABILITY. PART 1 - FORWARD PASSENGER COMPARTMENT POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT (GROUPS 1-13) -DO A GENERAL VISUAL INSPECTION AT LOCATIONS 1 THRU 6 AND 9 IDENTIFIED IN VIEW A-A TO SEE IF PLASTIC COUPLINGS ARE INSTALLED -IF A PLASTIC COUPLING IS FOUND INSTALLED AT ANY OF THE LOCATIONS, REPLACE WITH EQUIVALENT METAL COUPLING AND DO A POTABLE WATER SYSTEN LEAKAGE TEST. -IF A PLASTIC COUPLING IS NOT FOUND INSTALLED AT ANY OF THE LOCATIONS, NO MORE WORK IS NECESSARY FOR LOCATIONS 1 THRU 6 AND 9. PART 2 - FORWARD GALLEY POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT (GROUPS 9 AND 10) -DO A GENERAL VISUAL INSPECTION AT LOCATIONS 7 OR 8 IDENTIFIED IN VIEW A-A TO SEE IF PLASTIC COUPLINGS ARE INSTALLED -IF A PLASTIC COUPLING IS FOUND INSTALLED AT EITHER OF THE LOCATIONS, REPLACE WITH EQUIVALENT METAL COUPLING AND DO A POTABLE WATER SYSTEN LEAKAGE TEST. -IF A PLASTIC COUPLING IS NOT FOUND INSTALLED AT ANY OF THE LOCATIONS, NO MORE WORK IS NECESSARY FOR LOCATIONS 7 OR 8. PART 3 - FORWARD PASSENGER COMPARTMENT POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION (GROUPS 1-13) -INSTALL SPRAY SHROUDS AROUND METAL COUPLINGS AT LOCATIONS 1 THRU 6. (GROUPS 1-13) -INSTALL SPRAY SHROUDS AROUND METAL COUPLINGS AT LOCATIONS 7 OR 8 (GROUP 9 AND 10 ONLY) -REMOVE TWO HOSE ASSEMBLIES AND RELATED PARTS BETWEEN LOCATION 6 AND LOCATION 9. INSTALL ONE NEW HOSE ASSEMBLY AT LOCATION 6. (GROUP 11 ONLY). 2261580 -DO A POTABLE WATER SYSTEM LEAKAGE TEST. (GROUP 9-11 ONLY) Original Issue: November 12, 2013 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 767-38A0073 Work - See page 1 for details. 10 of 206 ### Page 11 (OCR) BOEING SERVICE BULLETIN 767-38A0073 ALERT ALERT STA STA STA STA 303 325 347 PART 1 AND PART 3 WORK: STA 287 LOCATIONS 1 THRU 6 AND 9 STA 266 246 RBL 77 LOCATION 1 P37 P32 P101 LOCATION 8 P51 P50 LOCATION 7 P34 OCATION 9 PART 2 AND PART 3 WORK: LOCATIONS 7 AND 8 P33 P140 E4 LOCATION 3 P65 E8 P36 P31 LBL 77 LOCATION 4 LOCATION 2 LOCATION 5 LOCATION 6 VIEW OF ALL APPLICABLE POTABLE WATER SYSTEM CONFIGURATIONS IN THE FORWARD PASSENGER COMPARTMENT AREA. A-A Original Issue: November 12, 2013 Export Controlled ECCN: 9E991 - BOEING 767-38A0073 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 11 of 206 ### Page 12 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 12 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT BLANK PAGE ### Page 13 Commercial Airplanes 767 Service Bulletin ALERT Number: 767-38A0073 Original Issue: November 12, 2013 ATA System: 3810 3071 SUBJECT: WATER/WASTE - Potable - Section 41 Potable Water Couplings Inspection and Replacement and Spray Shroud Installation THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER. 1. PLANNING INFORMATION A. Effectivity 1. Airplanes Refer to Service Bulletin Index D624T001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data. This service bulletin is for the airplane(s) shown below. DESCRIPTIONCONFIGURATIONGROUP 767-300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -1 767-300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 4 and 5. -2 767-200 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -3 767-200/300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -4 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 13 of 206 ### Page 14 DESCRIPTIONCONFIGURATIONGROUP 767-200 Airplane that requires potable water system coupling inspections/replacements and spray shroud installation at locations 2, 4 and 5. -5 767-400ER Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -6 767-300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -7 767-200 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 4 and 5. -8 767-300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 4, 5 and 7. -9 767-400ER Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 2, 3, 4 , 5 and 8. -10 767-300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4, 5, 6 and inspection/replacement then removal of potable water connection to location 9. -11 767-200/300 Airplanes that require potable water system coupling inspections/replacements and spray shroud installation at locations 1, 2, 3, 4 and 5. -12 767-400ER Airplane that requires potable water system coupling inspections/replacements and spray shroud installation at locations 1, 3, 4 and 5. -13 Airplane Models: 767-200, 767-300, 767-400ER GroupVariable Number 8VF181 - VF184 1VK012 - VK016 1VK108 - VK113 1VK144 - VK148 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 14 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 15 GroupVariable Number 9VK164 1VK171 1VK181 1VK186 7VL701 - VL703 1VL751 - VL755 1VL806 - VL807 1VL872 - VL873 1VL891 - VL900 1VL911 - VL914 1VL931 - VL932 1VL941 1VN036 - VN041 9VN094 - VN099 11VN136 - VN137 1VN174 1VN198 1VN225 7VN265 - VN276 1VN292 - VN293 1VN314 1VN388 1VN421 - VN427 1VN436 1VN637 - VN638 1VN657 - VN658 1VN690 - VN691 9VN732 2VN932 - VN936 1VN953 1VN966 - VN972 10VQ001 - VQ021 6VQ071 - VQ086 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 15 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 16 GroupVariable Number 13VQ111 3VR051 - VR060 12VR081 5VR084 4VR086 - VR089 4VR106 1VR401 1VR421 - VR423 1VR426 1VR441 1VR461 7VR471 - VR472 1VS051 - VS056 1VS061 7VS066 - VS070 7VS073 - VS078 1VS091 - VS104 1VS111 - VS113 1VS131 - VS133 1VS136 - VS137 1VS176 - VS177 9VS186 - VS187 1VS196 - VS203 1VS206 - VS208 1VS211 1VS216 - VS217 1VS231 11VS246 - VS248 1VS261 - VS263 7VS266 - VS274 1VS291 - VS293 1VS301 - VS302 12VS303 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 16 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 17 GroupVariable Number 1VS306 - VS311 1VS321 - VS324 12VS331 - VS333 12VS336 - VS337 1VS366 - VS367 1VS381 - VS382 1VS391 - VS392 1VS401 12VS426 - VS428 7VS466 - VS472 9VS486 1VS496 - VS497 1VS506 - VS507 1VS526 2VS546 - VS549 12VS701 - VS703 4VS704 - VS720 12VS721 - VS728 4VS729 - VS736 12VS751 - VS753 4VS754 - VS759 12VS821 - VS824 4VS825 12VS841 - VS843 4VS844 12VS861 4VS881 - VS883 4VS891 4VS896 4VS901 - VS912 4VS916 4VS921 - VS928 4VS931 - VS933 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 17 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 18 GroupVariable Number 4VS941 4VS951 - VS954 4VS961 - VS969 4VS971 - VS977 4VS981 - VS984 4VT001 - VT013 4VT021 4VT031 2. Spares Affected None. B. Concurrent Requirements None. C. Reason Accomplishment of this service bulletin will make sure that the potable water system couplings in section 41 do not leak onto electrical equipment. If this service bulletin is not done, an uncontrolled water leak from a defective potable water system coupling could cause the Main Equipment Center (MEC) Line Replaceable Units (LRU's) to become wet. Wet Main Equipment Center (MEC) Line Replaceable Units (LRU's) could result in an electrical short and potential loss of several functions essential for safe flight. An operator reported problems with the Engine Indication and Crew Alerting System (EICAS) display system during flight. An investigation of the event determined that it was caused by a water leak from a fractured plastic potable water coupling. Boeing analysis of all 767 models, based on delivered configurations, identified nine possible coupling locations as being near enough to electrical LRU's to cause a potential problem if water leaked from them. To reduce this risk, plastic couplings have now been made one way replaceable by metal couplings. Plastic couplings were delivered on airplanes between line numbers 534 and 890. Plastic couplings have also been listed as two-way interchangeable with metal couplings applicable to 767 passenger airplanes up to line number 1062, thus, the changes in this service bulletin are applied to line numbers 534 thru 1062. Any plastic couplings found in the identified locations will be replaced with metal couplings. In addition, to further protect LRU's, spray shrouds and shields, used on all new production airplanes, will be installed on operational airplanes to cover the identified couplings, to direct any leakage away from electrical equipment. This service bulletin gives instructions to inspect and replace plastic potable water couplings with metal couplings in the identified locations in Section 41. In addition, spray shrouds and shields are installed to cover the identified couplings. Installation of new metal couplings will reduce the chance of uncontrolled water leakage and the spray shrouds and shields will protect essential electrical systems should a leak occur. Boeing Service Related Problem (SRP) 767-SRP-38-0063 is related to this service bulletin. Boeing Fleet Team Digest (FTD) 767 FTD 38-12001 is related to this service bulletin. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 18 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 19 D. Description PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get Access to the portable water system tubing in Section 41. 2. Do a general visual inspection in coupling locations 1 thru 6 and 9 for any plastic coupling in the potable water system. a. If no plastic coupling is found no more work is necessary for those locations. b. If any plastic coupling is found replace the coupling with an equivalent metal coupling. 3. Close access. Group 9-10: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get Access to the portable water system tubing in Section 41. 2. Do a general visual inspection in coupling locations 7 or 8, for any plastic coupling, in the potable water system. a. If no plastic coupling is found no more work is necessary for those locations. b. If any plastic coupling is found, replace the coupling with an equivalent metal coupling. 3. Close access. PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION 1. Get Access to the portable water system tubing in Section 41. 2. Install spray shrouds around metal couplings in coupling locations 1 thru 6. 3. Group 9-10: Install spray shrouds around metal couplings at coupling locations 7 or 8. 4. Group 11: Remove two hose assemblies and related parts between location 9 and location 6. Install one new hose assembly at location 6. 5. Close access. The work in this service bulletin is done in the maintenance zone(s) given below. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 19 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 20 Group 1-2, 7, 9, 11: Affected Maintenance Zones ZoneModel 117, 118, 119767-300 Group 3, 5, 8: Affected Maintenance Zones ZoneModel 117, 118, 119767-200 Group 4, 12: Affected Maintenance Zones ZoneModel 117, 118, 119767-200, 767-300 Group 6, 10, 13: Affected Maintenance Zones ZoneModel 117, 118, 119767-400ER E. Compliance The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory. Do the required actions in accordance with Paragraph 3. Accomplishment Instructions. TABLE 1: All Groups - Section 41 - Potable Water System Coupling Inspection and Replacement Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Within 24 months after the original is- sue date of this service bulletin. Do PART 1: Forward Passenger Compartment Potable Water System Coupling General Visual Inspection, for plastic couplings, found at any coupling location 1 thru 6 and 9. (a) All Airplanes. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 20 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 21 TABLE 1: All Groups - Section 41 - Potable Water System Coupling Inspection and Replacement Repeat Interval (Not to Exceed) Compliance TimeActionCondition --No more work is neces- sary for PART 1. CONDITION 1: No plastic coupling found. -Within 24 months after the original is- sue date of this service bulletin. Replace plastic coupling with an equivalent metal coupling. CONDITION 2: Any plastic coupling found. (a) Refer to APPENDIX A for applicable coupling locations for airplane groups. Do the required actions in accordance with Paragraph 3. Accomplishment Instructions. Group 9: TABLE 2A: - Forward Galley - Potable Water System Coupling Inspection and Replacement Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Within 72 months after the original is- sue date of this service bulletin. Do PART 2: Forward Galley Potable Water System Coupling General Visual Inspection, for plastic couplings, at cou- pling location 7. Airplanes, with potable wa- ter system coupling connec- tion to the forward galley at coupling location 7. --No more work is neces- sary for PART 2. CONDITION 3: No plastic coupling found. -Within 72 months after the original is- sue date of this service bulletin. Replace plastic coupling with an equivalent metal coupling. CONDITION 4: Any plastic coupling found. Do the required actions in accordance with Paragraph 3. Accomplishment Instructions. Group 10: TABLE 2B: - Forward Galley Potable Water System Coupling Inspection and Replacement Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Within 72 months after the original is- sue date of this service bulletin. Do PART 2: Forward Galley Potable Water System Coupling General Visual Inspection, for plastic couplings, at cou- pling location 8. Airplanes, with potable wa- ter system coupling connec- tion to the forward galley at coupling location 8. --No more work is neces- sary for PART 2. CONDITION 3: No plastic coupling found. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 21 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 22 Group 10: TABLE 2B: - Forward Galley Potable Water System Coupling Inspection and Replacement Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Within 72 months after the original is- sue date of this service bulletin. Replace plastic coupling with an equivalent metal coupling. CONDITION 4: Any plastic coupling found. Do the required actions in accordance with Paragraph 3. Accomplishment Instructions. Group 1-8, 11-13: NOTE: Operators must do PART 1, before or at the same time as PART 3. Group 9-10: NOTE: Operators must do PART 1 and PART 2, before or at the same time as PART 3. TABLE 3: All Groups - Section 41 Potable Water System Coupling - Spray Shroud Installation Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Within 72 months after the original is- sue date of this service bulletin. Do PART 3: Forward Passenger Compartment Potable Water System Coupling Spray Shroud Installation at coupling lo- cation 1 thru 8. (a) All Airplanes. (a) Refer to APPENDIX A for applicable coupling locations for airplane groups. 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. G. Manpower The table below shows an estimate of the task hours necessary to do this inspection and change 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: Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 22 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 23 • Time to adjust to the workplace • Time to schedule the work • Time to inspect the work • Time to find the tools. Group 1: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.300.301FIGURE 2 0.300.301FIGURE 6 ---FIGURE 31 (a) ---FIGURE 32 (a) ---FIGURE 36 (a) 0.501.002Close Access 1.503.002Test (b) 1.802.80TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 2: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.500.501Open Access 0.300.301FIGURE 2 0.300.301FIGURE 6 ---FIGURE 32 (a) ---FIGURE 36 (a) 0.500.501Close Access 1.503.002Test (b) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 23 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 24 Group 2: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 1.601.60TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. Operators can use 3 manhours for 2 persons and an elapsed time of 1.50 hours, as an estimate for this test. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 3: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.300.301FIGURE 5 0.300.301FIGURE 10 ---FIGURE 31 (a) ---FIGURE 35 (a) ---FIGURE 40 (a) 0.501.002Close Access 1.503.002Test (b) 1.802.80TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 24 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 25 Group 4: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.200.201FIGURE 3 0.300.301FIGURE 7 ---FIGURE 31 (a) ---FIGURE 33 (a) ---FIGURE 37 (a) 0.501.002Close Access 1.503.002Test (b) 1.702.70TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 5: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 3 0.300.301FIGURE 7 0.200.201FIGURE 11 ---FIGURE 33 (a) ---FIGURE 37 (a) ---FIGURE 41 (a) 0.501.002Close Access 1.503.002Test (b) 1.702.70TOTAL FOR PART 1 (Inspection only) (c) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 25 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 26 Group 5: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 6, 13: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.200.201FIGURE 3 0.500.501FIGURE 9 ---FIGURE 31 (a) ---FIGURE 33 (a) ---FIGURE 39 (a) 0.501.002Close Access 1.503.002Test (b) 1.902.90TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 26 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 27 Group 7: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.300.301FIGURE 4 0.300.301FIGURE 6 ---FIGURE 31 (a) ---FIGURE 34 (a) ---FIGURE 36 (a) 0.501.002Close Access 1.503.002Test (b) 1.802.80TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 8: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.500.501Open Access 0.300.301FIGURE 4 0.300.301FIGURE 6 ---FIGURE 34 (a) ---FIGURE 36 (a) 0.500.501Close Access 1.503.002Test (b) 1.601.60TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 27 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 28 Group 8: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. Operators can use 3 manhours for 2 persons and an elapsed time of 1.50 hours, as an estimate for this test. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 9: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.750.751Open Access 0.300.301FIGURE 2 0.300.301FIGURE 8 ---FIGURE 32 (a) ---FIGURE 38 (a) 0.750.751Close Access 1.503.002Test (b) 2.302.30TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. Operators can use 3 manhours for 2 persons and an elapsed time of 1.50 hours, as an estimate for this test. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 10: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.651.302Open Access 0.200.201FIGURE 1 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 28 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 29 Group 10: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.200.201FIGURE 3 0.500.501FIGURE 9 0.200.201FIGURE 11 ---FIGURE 31 (a) ---FIGURE 33 (a) ---FIGURE 39 (a) ---FIGURE 41 (a) 0.651.302Close Access 1.503.002Test (b) 2.403.70TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 11: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.751.502Open Access 0.200.201FIGURE 1 0.300.301FIGURE 2 0.300.301FIGURE 6 0.400.401FIGURE 12 ---FIGURE 31 (a) ---FIGURE 32 (a) ---FIGURE 36 (a) ---FIGURE 42 (a) 0.751.502Close Access Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 29 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 30 Group 11: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 1.503.002Test (b) 2.704.20TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Group 12: PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 0.200.201FIGURE 1 0.200.201FIGURE 3 0.300.301FIGURE 7 0.200.201FIGURE 11 ---FIGURE 31 (a) ---FIGURE 33 (a) ---FIGURE 37 (a) ---FIGURE 41 (a) 0.501.002Close Access 1.503.002Test (b) 1.902.90TOTAL FOR PART 1 (Inspection only) (c) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) The time to do the coupling replacement figures is not included in the total estimate given. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 30 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 31 Group 9: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access for in- spection 0.100.101FIGURE 13 6.2550.008Remove forward gal- ley (c) ---FIGURE 43 (a) 6.2550.008Install forward galley (c) 0.501.002Close Access 1.503.002Test (b) 1.102.10TOTAL FOR PART 2 (Inspection only) (d) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) Removal and replacement of the forward galley is only necessary if plastic couplings are replaced. The time to do those tasks is not included in the total estimate given. Boeing recommends that this work be done at the same time as PART 3 work, in the same Location. (d) The time to do the coupling replacement figure is not included in the total es- timate given. Group 10: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access for in- spection 0.100.101FIGURE 14 6.2550.008Remove forward gal- ley (c) ---FIGURE 44 (a) 6.2550.008Install forward galley (c) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 31 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 32 Group 10: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Close Access 1.503.002Test (b) 1.102.10TOTAL FOR PART 2 (Inspection only) (d) (a) Estimates are not given as the quantity of couplings to be replaced is variable. Operators can use 0.15 manhours, for one person, as an estimate for the time to replace one coupling. (b) The leak test of the potable water system is only necessary if plastic couplings are replaced. The time to do the leak test is not included in the total estimate given. (c) Removal and replacement of the forward galley is only necessary if plastic couplings are replaced. The time to do those tasks is not included in the total estimate given. Boeing recommends that this work be done at the same time as PART 3 work, in the same Location. (d) The time to do the coupling replacement figure is not included in the total es- timate given. Group 1: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 16 0.600.601FIGURE 20 0.51.002Close Access 2.953.95TOTAL FOR PART 3 Group 2: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.500.501Open Access 0.150.151FIGURE 16 0.600.601FIGURE 20 0.500.501Close Access Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 32 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 33 Group 2: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 1.751.75TOTAL FOR PART 3 Group 3: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 19 0.600.601FIGURE 26 0.501.002Close Access 2.953.95TOTAL FOR PART 3 Group 4: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 17 0.150.151FIGURE 21 0.501.002Close Access 2.503.50TOTAL FOR PART 3 Group 5: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.50.51Open Access 0.150.151FIGURE 17 0.150.151FIGURE 21 0.150.151FIGURE 27 0.50.51Close Access Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 33 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 34 Group 5: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 1.451.45TOTAL FOR PART 3 Group 6: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 17 1.201.201FIGURE 25 0.501.002Close Access 3.554.55TOTAL FOR PART 3 Group 7: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 18 0.600.601FIGURE 20 0.501.002Close Access 2.953.95TOTAL FOR PART 3 Group 8: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.100.101Open Access 0.150.151FIGURE 18 0.600.601FIGURE 20 0.100.101Close Access 0.950.95TOTAL FOR PART 3 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 34 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 35 Group 9: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 6.2550.008Open Access (a) 0.150.151FIGURE 16 0.600.601FIGURE 22 1.801.801FIGURE 29 6.2550.008Close Access (a) 15.05102.55TOTAL FOR PART 3 (a) Includes time to remove or install the forward galley, if required to get access for the installation given in FIGURE 29. Group 10: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 6.2550.008Open Access (a) 1.201.201FIGURE 15 0.150.151FIGURE 17 1.201.201FIGURE 23 0.150.151FIGURE 27 1.801.801FIGURE 30 6.2550.008Close Access (a) 17.00104.50TOTAL FOR PART 3 (a) Includes time to remove or install the forward galley, if required to get access for the installation given in FIGURE 30. Group 11: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION AND LOCATION 9 REMOVAL Elapsed HoursTask HoursNumber of PersonsTask 0.751.502Open Access 1.201.201FIGURE 15 0.150.151FIGURE 16 0.600.601FIGURE 20 2.502.501FIGURE 28 (a) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 35 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 36 Group 11: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION AND LOCATION 9 REMOVAL Elapsed HoursTask HoursNumber of PersonsTask 0.751.502Close Access 5.957.45TOTAL FOR PART 3 (a) Includes time to remove the potable water tubing between Location 6 and 9. Group 12: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 17 0.150.151FIGURE 21 0.150.151FIGURE 27 0.501.002Close Access 2.653.65TOTAL FOR PART 3 Group 13: PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION Elapsed HoursTask HoursNumber of PersonsTask 0.501.002Open Access 1.201.201FIGURE 15 0.150.151FIGURE 17 1.201.201FIGURE 24 0.501.002Close Access 3.554.55TOTAL FOR PART 3 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 36 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 37 H. Weight and Balance Changes Group 11: Change in Moment (Pound-Inches) Change in Weight (Pounds)Airplane -318.9-1.0Group 11 airplanes. (a) (a) That have a potable water system connection to Location 9 - to be removed in PART 3 work instructions. Group 1-10, 12-13: None. I. Electrical Load Data Not changed. J. References 1. Existing Data: a. Engineering Change Memo PRR B12901-113S. b. Boeing Service Related Problem (SRP) 767-SRP-38-0063. c. Service Bulletin Index D624T001. d. Standard Overhaul Practices Manual (SOPM) 20-50-01, 20-50-06. e. 767 Aircraft Maintenance Manual (AMM) 12-14-01, 24-22-00, 25-31-01, 38-10-00, 53-01-01. f. 767 Fleet Team Digest (FTD) 38-12001. g. 767 Maintenance Planning Data (MPD) Appendix A. 2. Data Supplied with this Service Bulletin: None. 3. Installation Drawings Used in the Preparation of this Service Bulletin: TitleDrawing Number PLUMBING AND PROVISIONS INSTL - SECT 41, POTABLE WATER SYSTEM 417T2241 PLUMBING AND PROVISIONS INSTL - SECT 41, POTABLE WATER SYSTEM 417T2441 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 37 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 38 These drawings were used to prepare this service bulletin. These drawings are not necessary to make the specified changes, and are not supplied with this service bulletin. These drawings may not be applicable to all airplane configurations or operators. K. Publications Affected 1. Publications: Chapter-SectionPublication 30-71, 38-11767 Illustrated Parts Catalog 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 Refer to 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: November 12, 2013 767-38A0073 38 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 39 2. MATERIAL INFORMATION A. Material - Price and Availability Boeing can supply the kits shown in Paragraph 2.C., Parts Necessary for Each Airplane. Operators are encouraged to share schedule requirements with Boeing for incorporation of the service bulletin. The kits are subject to the terms and conditions of the Boeing standard purchase order acknowledgment. Prices are in United States Dollars. Terms: Net 30 days. Reference this service bulletin and submit your purchase order by one of these methods: 1. Order on-line via ATA Spec 2000 or The Boeing PART Page 2. Fax to (206) 662-7145 REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION Unit Price as of the original issue date of this Ser- vice Bulletin (US Dollars) ROLT as of the original issue date of this Ser- vice Bulletin (Cal- endar Days) QTYDateNameKit Number (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-1 (Group 1) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-2 (Group 2) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-3 (Group 3) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-4 (Group 4) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-5 (Group 5) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-6 (Group 6) (a) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 39 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 40 REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION Unit Price as of the original issue date of this Ser- vice Bulletin (US Dollars) ROLT as of the original issue date of this Ser- vice Bulletin (Cal- endar Days) QTYDateNameKit Number (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-7 (Group 7) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-8 (Group 8) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-9 (Group 9) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-10 (Group 10) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-11 (Group 11) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-12 (Group 12) (a) (d)(d)TOP KIT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD RETROFIT 015T1891-13 (Group 13) (a) (d)1391610/30/13TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-14 (Groups 1, 3, 7 and 12) (b) (d)139210/30/13TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-15 (Groups 2, 5 and 8) (b) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 40 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 41 REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION Unit Price as of the original issue date of this Ser- vice Bulletin (US Dollars) ROLT as of the original issue date of this Ser- vice Bulletin (Cal- endar Days) QTYDateNameKit Number (d)139210/30/13TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-16 (Group 9) (c) (d)139--TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-17 (Group 10) (c) (d)139--POTABLE WATER SYSTEM PLASTIC COUPLING - RE- PLACEMENT 015T1891-18 (Group 11) (b) (d)139210/30/13TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-19 (Groups 6 and 13) (b) (d)139--TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT 015T1891-20 (Group 4) (b) (a) Applicable to PART 3. (b) Applicable to PART 1. (c) Applicable to PART 1 and PART 2. (d) Contact Boeing Spares. B. Industry Support Information Boeing warranty remedies are available for 767 airplanes in warranty as of July 7, 2012. For task hour reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing Warranty & Product Assurance Contracts. The kits for airplanes in warranty as of that date will be supplied at no charge. Send a purchase order for the kits to Boeing Material Management. Please refer to this service bulletin number and reference the airplane numbers in your purchase order. The warranty remedies will expire eight years from the original issue date of this service bulletin. C. Parts Necessary for Each Airplane 1. Kits/Parts: To get the kits/parts shown below, 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: November 12, 2013 767-38A0073 41 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 42 NOTE: One top kit, P/N 015T1891-1 thru -13 as applicable, is necessary for the work in PART 3 of this service bulletin, for each airplane and the item shown in Paragraph 2.C.2., Parts and Materials Supplied by the Operator, if applicable. NOTE: One Top Kit, 015T1891-14 thru -20 as applicable, is necessary for replacement work in PART 1 and PART 2 of this service bulletin. These top kits include parts necessary to replace all inspected couplings at each location, in each airplane. As an option, operators can choose to purchase couplings on an individual basis to agree with their inspection results. Refer to Paragraph 2.C.2., Parts and Materials Supplied by the Operator. PART 1 AND 2 OPTIONAL PLASTIC COUPLING REPLACEMENT KITS Kit 015T1891 NotesNameQTYNew Part Number -20-19-18-17-16-15-14 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT ......-015T1891-14 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT .....-.015T1891-15 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT ....-..015T1891-16 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT ...-...015T1891-17 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT ..-....015T1891-18 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT .-.....015T1891-19 TOP KIT - POTABLE WATER SYSTEM PLASTIC COUPLING - REPLACEMENT -......015T1891-20 (a) (b) (c) (d) (e) METAL COUPLING124442214C33-08 (a) (b) (c) (d) (f) METAL COUPLING333311314C33-10 (a) (b) (c) (d) (g) METAL COUPLING345443314C33-12 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 42 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 43 PART 1 AND 2 OPTIONAL PLASTIC COUPLING REPLACEMENT KITS Kit 015T1891 NotesNameQTYNew Part Number -20-19-18-17-16-15-14 (a) Discard the existing part. (b) This part used in production. (c) You cannot use the existing part to replace the new part. (d) The quantity of parts given is sufficient to replace all couplings. (e) Replaces plastic coupling P/N CA62505-56BL or CA62005-56BL. (f) Replaces plastic coupling P/N CA62506-56BL or CA62006-56BL. (g) Replaces plastic coupling P/N CA62507-56BL or CA62007-56BL. Group 1-6: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -6-5-4-3-2-1 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT .....-015T1891-1 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ....-.015T1891-2 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ...-..015T1891-3 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ..-...015T1891-4 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT .-....015T1891-5 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT -.....015T1891-6 SPRAY SHIELD111...417T2080-7 SPRAY SHIELD1..111417T2080-9 SPRAY SHIELD111...417T2080-10 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 43 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 44 Group 1-6: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -6-5-4-3-2-1 SPRAY SHIELD...111417T2080-11 SHROUD, WATERLINE1.11.177000-910-034 NUT6.4626BACN10YR3CD SCREW1.11.1BACS12GU3K13 SCREW4.2424BACS12GU3K16 SCREW1.11.1BACS12GU3K21 (b)STRAP401030401040BACS38K1 STRAP644444BACS38K7 SHROUD1.11.1BOE2225-0002 SHROUD.1....BOE2271-0002 SHROUD3.12.1BOE2271-0003 SPACER2.22.2NAS42DD6-20FC SPACER1.11.1NAS42DD6-41FC SPACER2..222NAS42DD6-6FC (a)CLAMP1.11.1NMC1005-4 (a)CLAMP8.4848NMC1005-5 (a)CLAMP3.33.3NMC1005-6 (a) Discard the existing part. (b) There are more parts than are necessary. Group 7-11, 13: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -13-11-10-9-8-7 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT .....-015T1891-7 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ....-.015T1891-8 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 44 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 45 Group 7-11, 13: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -13-11-10-9-8-7 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ...-..015T1891-9 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT ..-...015T1891-10 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT .-....015T1891-11 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT -.....015T1891-13 SPRAY SHIELD1.1...417T2080-7 SPRAY SHIELD111211417T2080-9 SPRAY SHIELD1.1.11417T2080-10 SPRAY SHIELD.1.1..417T2080-11 SHROUD, WATERLINE111..177000-910-034 SHROUD..11..AS1591-04-0900A HOSE ASSY.1....AS4799-12-0560 (b)NUT686226BACN10YR3CD SCREW111..1BACS12GU3K13 SCREW444224BACS12GU3K16 SCREW.1....BACS12GU3K17 SCREW111..1BACS12GU3K21 (b)STRAP405050401040BACS38K1 STRAP646644BACS38K7 SHROUD111..1BOE2225-0002 SHROUD.1....BOE2225-0003 SHROUD.1....BOE222711013505 SHROUD..1...BOE2271-0002 SHROUD211..1BOE2271-0003 SHROUD..1...BOE2272-0002 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 45 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 46 Group 7-11, 13: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -13-11-10-9-8-7 SHROUD...1..BOE2272-0003 (b)BLOCK.101010..CR4H (b)WASHER.4....NAS1149D0332J O-RING..44..NAS1611-015A O-RING.2....NAS1611-117A SPACER222..2NAS42DD6-20FC SPACER111..1NAS42DD6-41FC SPACER222222NAS42DD6-6FC SPACER.1....NAS43DD3-12FC (a)CLAMP111..1NMC1005-4 (a)CLAMP8129548NMC1005-5 (a)CLAMP333..3NMC1005-5 (a) Discard the existing part. (b) There could possibly be more parts than are necessary. Group 12: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -12 TOP KIT - POTABLE WATER SYS- TEM COUPLING - SPRAY SHROUD RETROFIT -015T1891-12 SPRAY SHIELD1417T2080-7 SPRAY SHIELD1417T2080-10 SHROUD, WATERLINE177000-910-034 NUT4BACN10YR3CD SCREW1BACS12GU3K13 SCREW2BACS12GU3K16 SCREW1BACS12GU3K21 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 46 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 47 Group 12: PART 3: SPRAY SHROUD RETROFIT KITS Kit 015T1891 NotesNameQTYNew Part Number -12 (b)STRAP50BACS38K1 STRAP6BACS38K7 SHROUD1BOE2225-0002 SHROUD1BOE2271-0002 SHROUD1BOE2271-0003 SPACER2NAS42DD6-20FC SPACER1NAS42DD6-41FC (a)CLAMP1NMC1005-4 (a)CLAMP4NMC1005-5 (a)CLAMP3NMC1005-6 (a) Discard the existing part. (b) There could possibly be more parts than are necessary. 2. Parts and Materials Supplied by the Operator: The following parts or materials are necessary to do the change in this service bulletin. Parts and materials in the manuals given in Paragraph 1.J., References, can also be necessary. Examine operator part and material supply to make sure all necessary parts and materials are available. PART 1 AND 2 OPTIONAL PLASTIC COUPLING REPLACEMENT PARTS NotesNameQTYPart Number / Specification Replaces plastic coupling P/N CA62505-56BL or CA62006-56BL. (a) (b) (c) (d) (e) Metal Coupling(f)14C33-08 Replaces plastic coupling P/N CA62506-56BL or CA62006-56BL. (a) (b) (c) (d) (e) Metal Coupling(f)14C33-10 Replaces plastic coupling P/N CA62507-56BL or CA62007-56BL. (a) (b) (c) (d) (e) Metal Coupling(f)14C33-12 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 47 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 48 PART 1 AND 2 OPTIONAL PLASTIC COUPLING REPLACEMENT PARTS NotesNameQTYPart Number / Specification (a) If Operators choose not to purchase the plastic coupling replacement kits, these parts can be ordered separately to replace any plastic couplings found. (b) Can be purchased from: Hydraflow - 1881w Malvern Ave. Fullerton, CA. Cage code: 24984 (c) Discard the existing part. (d) This part used in production. (e) You cannot use the existing part to replace the new part. (f) The quantity of replacement metal couplings that need to be purchased should agree with the quantity of plastic couplings found during the inspection. Group 9-11: PART 3: SPRAY SHROUD RETROFIT PARTS NotesNameQTYPart Number / Specification (a)Tape2 ftP29 (a) Refer to the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. 3. Parts Modified and Reidentified: None. 4. Parts Removed and Not Replaced: Group 11: NotesQTYNameExisting Part Number (a) (b)1Hose AssemblyAS4706-08-0970 1TeeFT1084 1Coupling (c)14C33-12 or CA62507-56BL or CA62007-56BL 2Coupling (c)14C33-08 or CA62505-56BL or CA62007-56BL (a) Keep the part if there are other uses for it. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 48 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 49 Group 11: NotesQTYNameExisting Part Number (b) These removed parts and related supporting hardware are for the unused potable water connection between Location 6 and Location 9 given in FIGURE 28. (c) And related sleeve and O-rings. Group 1-10, 12-13: None. D. Parts Necessary to Change Spares None. E. Special Tooling - Price and Availability None. F. Special Tooling Necessary to do this Service Bulletin No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine operator tool supply to make sure all necessary tools are available. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 49 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 50 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 50 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT BLANK PAGE ### Page 51 3. ACCOMPLISHMENT INSTRUCTIONS A. GENERAL INFORMATION CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL, METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR OTHER ELECTRICAL DAMAGE. NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for definition of the acronyms. 2. Obey all of the warnings and cautions given in the specified manual sections. 3. The work instructions are divided into work packages. Task Hours and Elapsed Hours for each package are given in Paragraph 1.G., Manpower. You can do each work package independently. 4. Unless shown differently, these dimensions and tolerances are used: – Linear dimensions are in inches – Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus or minus 0.03 inch – Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch – Angular tolerance is plus or minus 2 degrees – Hole dimensions for standard solid rivets and fasteners are in Structural Repair Manual (SRM) Chapter 51 – Torque Values: — Values for structural fasteners are given in 767 Structural Repair Manual, Chapter 51. — Non-standard torque values for maintenance tasks are included in the applicable installation step. 5. Use the approved fastener and process material substitutions in accordance with SRM Chapter 51. 6. If the length of any fastener specified in this service bulletin does not meet installation standards given in SRM Chapter 51, then a fastener of the same specification, or an approved substitute, with a length which meets the installation standards given in SRM Chapter 51 may be used. In addition, washers may be installed for fastener grip length in accordance with SRM Chapter 51. Refer to SOPM 20-50-01 for alternate full threaded fasteners (screws) needed for installation in this service bulletin. 7. A General Visual Inspection is defined as: A visual examination of an interior or exterior area, installation or assembly to detect obvious damage, failure or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to enhance visual access to all exposed surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight or drop-light and may require removal or opening of access panels or doors. Stands, ladders or platforms may be required to gain proximity to the area being checked. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 51 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 52 8. These work instructions refer to procedures included in other Boeing documents. When the words "refer to" are used and the operator has an accepted alternative procedure, the accepted alternative procedure can be used. When the words "in accordance with" are included in the instruction, the procedure in the Boeing document must be used. 9. Refer to Appendix A for Coupling Location group applicability. 10. The instructions in Paragraph 3.B., Work Instructions and the figures can include operation of tools or test equipment. Boeing Engineering Tool Drawings, the Illustrated Tool and Equipment Manual, and the Special Tool and Ground Handling Drawing Index contain data on versions of the tools or test equipment that you can use. It is permitted to use replaced tools. It is not permitted to use superseded tools. 11. If it is necessary to remove more parts for access, you can remove those parts. If you can get access without removing identified parts, it is not necessary to remove all of the identified parts. Jacking and shoring limitations must be observed. 12. Where the work instructions include installation of a kept part, a new or serviceable part with the same part number can be installed as an alternative to the kept part. 13. This service bulletin includes functional test procedures for the systems changed by this service bulletin. More functional tests can possibly be necessary in accordance with standard maintenance practices because of interruption to other airplane systems. 14. If shading is used, shaded areas in Figures are to separate the non-critical and non-authoritative information from the critical and authoritative information. 15. When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When more than one ACTION is given for a CONDITION number or an OPTION number, do all of the ACTION numbers for that CONDITION number or OPTION number. 16. The compliance times for the actions in Paragraph 3.B., WORK INSTRUCTIONS are in Paragraph 1.E., Compliance. 17. The CONDITIONS, ACTIONS and OPTIONS shown apply to each of the applicable potable water system locations independently. 18. Some steps in the Work Instructions are identified as Required for Compliance (RC). If this service bulletin is mandated by an Airworthiness Directive (AD), then the steps identified as RC must be done to comply with the AD. Alternative procedures for steps not identified with RC can be used if the RC steps can still be done as specified, and the airplane can be put back in a serviceable condition. An Alternative Method of Compliance (AMOC) is not necessary for deviations to steps that are not identified as RC. 19. Parts to be installed in this service bulletin, around potable water couplings, to give spray protection to electrical equipment, have been given part names "Spray Shrouds" and "Spray Shields" or "Shroud" and "Shield". Where "Spray Shroud" is used in background text and titles this name is used to describe both Spray Shrouds and Spray Shields, as a group of parts. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 52 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 53 20. The access requirements for PART 1 are the same as for the installations given in PART 3, at Locations 1 thru 6 and 9. The access requirements for PART 2 are the same as for the installations given in PART 3, only if it is necessary to replace the coupling at Locations 7 or 8, in which case removal of the forward galley will be necessary for access. The PART 2 inspection can be done from the Main Equipment Center, without removal of the forward galley. B. WORK INSTRUCTIONS PART 1 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get access to the Main Equipment Center Ceiling and find the potable water supply couplings at Locations 1 thru 6 and 9, as given in TABLE 1. 2. Remove electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. 3. RC - In the Main Equipment Center, do a General Visual Inspection (GVI) of potable water system couplings, for plastic couplings, found at Locations 1 thru 6 and 9 in accordance with the figures in TABLE 1: TABLE 1 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED COUPLING INSPECTION FIGURES FigureCoupling LocationsAirplane Group FIGURE 1, FIGURE 2, FIGURE 61, 3, 4 and 51 FIGURE 2, FIGURE 64 and 52 FIGURE 1, FIGURE 5, FIGURE 101, 3, 4 and 53 FIGURE 1, FIGURE 3, FIGURE 71, 3, 4 and 54 FIGURE 3, FIGURE 7, FIGURE 112, 4 and 55 FIGURE 1, FIGURE 3, FIGURE 91, 3, 4 and 56 FIGURE 1, FIGURE 4, FIGURE 61, 3, 4 and 57 FIGURE 4, FIGURE 64 and 58 FIGURE 2, FIGURE 84 and 59 FIGURE 1, FIGURE 3, FIGURE 9, FIG- URE 11 1, 2, 3, 4 and 510 FIGURE 1, FIGURE 2, FIGURE 6, FIG- URE 12 (a) 1, 3, 4, 5, 6 and 911 FIGURE 1, FIGURE 3, FIGURE 7, FIG- URE 11 1, 2, 3, 4 and 512 FIGURE 1, FIGURE 3, FIGURE 91, 3, 4 and 513 (a) If the coupling inspections in FIGURE 12 are done at the same time as the work in PART 3, FIGURE 28, the coupling at Location 9 and two of the three couplings at Location 6 (not the coupling at STA 331) are removed, thus those inspections would not be required. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 53 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 54 a. CONDITION 1: If no plastic coupling is found, no more work is necessary for Locations 1 thru 6 and 9. Do the steps that follow:- (1) Close access to the Main Equipment Center. (2) Put the airplane back to a serviceable condition. b. CONDITION 2: If any plastic coupling is found, at Locations 1 thru 6 and 9, replace it with an equivalent metal coupling. Do the steps that follow:- (1) Depressurize the potable water system. Refer to 767 AMM 38-10-00 as an accepted procedure. (2) Drain the potable water system. Refer to 767 AMM 12-14-01 as an accepted procedure. (3) RC - In the Main Equipment Center replace any plastic coupling found at Locations 1 thru 6 and 9 in accordance with the figures in TABLE 2: TABLE 2 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED PLASTIC COUPLING REPLACEMENT FIGURES FigureCoupling LocationsAirplane Group FIGURE 31, FIGURE 32, FIGURE 361, 3, 4 and 51 FIGURE 32, FIGURE 364 and 52 FIGURE 31, FIGURE 35, FIGURE 401, 3, 4 and 53 FIGURE 31, FIGURE 33, FIGURE 371, 3, 4 and 54 FIGURE 33, FIGURE 37, FIGURE 412, 4 and 55 FIGURE 31, FIGURE 33, FIGURE 391, 3, 4 and 56 FIGURE 31, FIGURE 34, FIGURE 361, 3, 4 and 57 FIGURE 34, FIGURE 364 and 58 FIGURE 32, FIGURE 384 and 59 FIGURE 31, FIGURE 33, FIGURE 39, FIGURE 41 1, 2, 3, 4 and 510 FIGURE 31, FIGURE 32, FIGURE 36, FIGURE 42 (a) 1, 3, 4, 5, 6 and 911 FIGURE 31, FIGURE 33, FIGURE 37, FIGURE 41 1, 2, 3, 4 and 512 FIGURE 31, FIGURE 33, FIGURE 391, 3, 4 and 513 (a) If the coupling replacements given in FIGURE 42 are done at the same time as the work in PART 3, FIGURE 28, the coupling at Location 9 and two of the three couplings at Location 6 (not the coupling at STA 331) are removed, thus those inspections would not be necessary. (4) Supply electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 54 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 55 (5) Fill the potable water system. Refer to 767 AMM 12-14-01 as an accepted procedure. (6) Pressurize the potable water system. Refer to 767 AMM 38-10-00 as an accepted procedure. (7) RC - Do a Potable Water System Leakage Test on any replaced coupling and repair any leak. Refer to 767 AMM 38-10-00 as an accepted procedure. (8) Close access to the Main Equipment Center. (9) Put the airplane back to a serviceable condition. Group 9-10: PART 2 - FORWARD GALLEY - POTABLE WATER SYSTEM COUPLING - INSPECTION AND REPLACEMENT 1. Get access to the Main Equipment Center Ceiling and find the potable water supply couplings at Locations 7 or 8, as given in TABLE 3. 2. Remove electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. 3. RC - In the forward passenger compartment, do a general visual inspection of potable water system couplings, for plastic couplings, at Location 7 or 8 in accordance with the figures in TABLE 3: TABLE 3 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED COUPLING INSPECTION FIGURES FigureCoupling LocationAirplane Group FIGURE 1379 FIGURE 14810 a. CONDITION 3: If no plastic coupling is found, no more work is necessary for Location 7 or 8. Do the steps that follow:- (1) Close access to the Main Equipment Center. (2) Put the airplane back to a serviceable condition. b. CONDITION 4: If any plastic coupling is found, at Location 7 or 8, replace it with an equivalent metal coupling. Do the steps that follow:- (1) Depressurize the potable water system. Refer to 767 AMM 38-10-00 as an accepted procedure (2) Drain the potable water system. Refer to 767 AMM 12-14-01 as an accepted procedure. (3) Remove electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. (4) Remove the forward galley, only if required to get access to the potable water supply coupling at Location 7 or 8, located under the forward galley. Refer to 767 AMM 25-31-01 as an accepted procedure. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 55 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 56 (5) Remove floor panels found under the forward galley, and keep attaching hardware, to get access to the potable water system couplings found at Location 7 or 8, as given in TABLE 4. Refer to 767 AMM 53-01-01 as an accepted procedure to remove panels. NOTE: Refer to Maintenance Planning Data 767 MPD Appendix A for Forward Passenger Compartment floor panel locations. (6) RC - In the forward passenger compartment replace any plastic coupling found in Location 7 or 8 in accordance with the figures in TABLE 4: TABLE 4 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED PLASTIC COUPLING REPLACEMENT FIGURES FigureCoupling LocationsAirplane Group FIGURE 4379 FIGURE 44810 (7) Supply electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. (8) Fill the potable water system. Refer to 767 AMM 12-14-01 as an accepted procedure. (9) Pressurize the potable water system. Refer to 767 AMM 38-10-00 as an accepted procedure. (10) RC - Do a Potable Water System Leakage Test on any replaced coupling and repair any leak. Refer to 767 AMM 38-10-00 as an accepted procedure. (11) Install floor panels and attaching hardware, that were removed to get access to the potable water system couplings at Location 7 or 8. Refer to 767 AMM 53-01-01 as an accepted procedure to remove panels. (12) Install the Forward Galley, if removed. Refer to 767 AMM 25-31-01 as an accepted procedure. (13) Close access to the Main Equipment Center. (14) Put the airplane back to a serviceable condition. PART 3 - FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - SPRAY SHROUD INSTALLATION 1. Get access to the Main Equipment Center Ceiling and find the potable water supply couplings at Locations 1 thru 6 and 9, as given in TABLE 1. 2. Group 9-10: Remove the forward galley, only if required to get access to the potable water supply coupling at Location 7 or 8, located under the forward galley. Refer to 767 AMM 25-31-01 as an accepted procedure. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 56 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 57 3. Group 9-10: Remove floor panels found under the forward galley, and keep attaching hardware, to get access to the potable water system couplings found at Location 7 or 8, as given in TABLE 4. Refer to 767 AMM 53-01-01 as an accepted procedure to remove panels. NOTE: Refer to Maintenance Planning Data 767 MPD Appendix A for Forward Passenger Compartment floor panel locations. 4. Group 9-11: Depressurize the potable water system. Refer to 767 AMM 38-10-00 as an accepted procedure. 5. Group 9-11: Drain the potable water system. Refer to 767 AMM 12-14-01 as an accepted procedure. 6. Remove electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. 7. Group 11: RC - In the Main Equipment Center (MEC), at Location 6, remove hose assemblies, P/N AS4706-08-0790 and AS4704-12-0524, related tee, coupling and supporting hardware parts, then install a new hose assy P/N AS4799-12-0560 in accordance with FIGURE 28. NOTE: Removal of hose assembly, P/N AS4706-08-0790 and related parts, removes the potable water system connection to Location 9. 8. RC - In the MEC and the forward passenger compartment, for groups 9 and 10 only, install new spray shrouds around the metal couplings found at Locations 1 thru 8 in accordance with the figures in TABLE 5: TABLE 5 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED SPRAY SHROUD INSTALLATION FIGURES FigureCoupling LocationsAirplane Group FIGURE 15, FIGURE 16, FIGURE 201, 3, 4 and 51 FIGURE 16, FIGURE 204 and 52 FIGURE 15, FIGURE 19, FIGURE 261, 3, 4 and 53 FIGURE 15, FIGURE 17, FIGURE 211, 3, 4 and 54 FIGURE 17, FIGURE 21, FIGURE 272, 4 and 55 FIGURE 15, FIGURE 17, FIGURE 251, 3, 4 and 56 FIGURE 15, FIGURE 18, FIGURE 201, 3, 4 and 57 FIGURE 18, FIGURE 204 and 58 FIGURE 16, FIGURE 22, FIGURE 294, 5 and 79 FIGURE 15, FIGURE 17, FIGURE 23, FIGURE 27, FIGURE 30 1, 2, 3, 4, 5 and 810 FIGURE 15, FIGURE 16, FIGURE 28 (a), FIGURE 20 1, 3, 4, 5, 6 and 911 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 57 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 58 TABLE 5 - GROUP APPLICABILITY OF COUPLING LOCATIONS AND RELATED SPRAY SHROUD INSTALLATION FIGURES FigureCoupling LocationsAirplane Group FIGURE 15, FIGURE 17, FIGURE 21, FIGURE 27 1, 2, 3, 4 and 512 FIGURE 15, FIGURE 17, FIGURE 241, 3, 4 and 513 (a) Make sure that the work in FIGURE 28, to change potable water system connections at Location 6 is done before the work in FIGURE 20, at Location 5. This is necessary because changes at location 6 require removal and installation of the aft coupling at Location 5 for replacement of the related hose assembly. 9. Supply electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure. 10. Group 9-11: Fill the potable water system, if drained before. Refer to 767 AMM 12-14-01 as an accepted procedure. 11. Group 9-11: Pressurize the potable water system, if depressurized before. Refer to 767 AMM 38-10-00 as an accepted procedure. 12. Group 9-11: RC - Do a Potable Water System Leakage Test on the disturbed potable water connections at the locations given in TABLE 6 and repair any leak. Refer to 767 AMM 38-10-00 as an accepted procedure. TABLE 6 - GROUP APPLICABILITY OF COUPLING LOCATIONS THAT RE- QUIRE POTABLE WATER SYSTEM LEAKAGE TEST Coupling LocationsAirplane Group 79 810 6 and related coupling at STA 276 (Location 5) 11 13. Group 9-10: Install floor panels and attaching hardware, that were removed to get access to the potable water system couplings at Location 7 or 8. Refer to 767 AMM 53-01-01 as an accepted procedure to remove panels. 14. Group 9-10: Install the Forward Galley, if removed. Refer to 767 AMM 25-31-01 as an accepted procedure. 15. Close access to the Main Equipment Center. 16. Put the airplane back to a serviceable condition. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: November 12, 2013 767-38A0073 58 of 206 BOEING SERVICE BULLETIN 767-38A0073 ALERTALERT ### Page 59 (OCR) BOEING SERVICE BULLETIN 767-38A0073 ALERT ALERT This Figure applies only to: Group 1, 3-4, 6-7, 10-13. STA 10 246 STA 246 B STA COUPLING AT 246 LOCATION 1 -WD A-A B-B C FIGURE 1: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 1 AND 3 INSPECTION (SHEET 1 OF 3) Original Issue: November 12, 2013 Export Controlled ECCN: 9E991 - BOEING 767-38A0073 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 59 of 206 ### Page 60 (OCR) BOEING SERVICE BULLETIN 767-38A0073 ALERT ALERT LBL 57, 39 LBL 45.22 70.18 WL - 199.5 _ WL 192.43 COUPLING AT INBD LOCATION 3 LOOKING AFT C-C FERRULE FERRULE 'Ơ' RING SLEEVE (2 LOCATIONS) COUPLING (2 LOCATIONS) 2261861 FIGURE 1: FORWARD PASSENGER COMPARTMENT - POTABLE WATER SYSTEM COUPLING - LOCATION 1 AND 3 INSPECTION (SHEET 2 OF 3) Original Issue: November 12, 2013 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 767-38A0073 Work - See page 1 for details. 60 of 206 The text continues at https://openairdocs.org/service-documents/boeing/767-38a0073/file/929c30cd74c3.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. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.