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Commercial Airplanes 747 Service Bulletin ALERT Number: 747-28A2306 Original Issue: October 02, 2014 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Fuel Boost Pump Wiring Change 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 © 2014 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Unpublished Work.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, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, 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. BOEING is a trademark of Boeing Management Company.

Original Issue: October 02, 2014 747-28A2306 1 of 261

5.0

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Table of Contents

Summary5

1. PLANNING INFORMATION9

A. Effectivity9

1. Airplanes9

2. Spares Affected ........................................ 1 9 B. Concurrent Requirements ...................................... 1 9 C. Reason ................................................ 1 9 D. Description .............................................. 1 9 E. Compliance .............................................. 2 0 F. Approval ............................................... 2 1 G. Manpower .............................................. 2 1 H. Weight and Balance Changes .................................... 2 3 I. Electrical Load Data ......................................... 2 4 J. References .............................................. 2 4

1. Existing Data: ......................................... 2 4

2. Data Supplied with this Service Bulletin: ........................... 2 4

3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 2 5

4. Process Data: ......................................... 2 5 K. Publications Affected ........................................ 2 5 L. Interchangeability and Intermixability of Parts ........................... 2 5 M. Software Accomplishment Summary ................................ 2 5

2. MATERIAL INFORMATION ........................................ 2 7 A. Material - Price and Availability ................................... 2 7 B. Industry Support Information .................................... 2 9 C. Parts Necessary for Each Airplane ................................. 3 0

1. Kits/Parts: ........................................... 3 0

2. Parts and Materials Supplied by the Operator: ........................ 4 7

3. Parts Modified and Reidentified: ............................... 4 7

4. Parts Removed and Not Replaced: .............................. 4 7 D. Parts Necessary to Change Spares ................................. 4 7 E. Special Tooling - Price and Availability ............................... 4 7 F. Special Tooling Necessary to do this Service Bulletin ....................... 4 7

3. ACCOMPLISHMENT INSTRUCTIONS .................................. 4 9 A. GENERAL INFORMATION ..................................... 4 9 B. WORK INSTRUCTIONS ....................................... 5 0 FIGURE 1: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W4520 AND W4519 - LEFT WING [Group 1] ............................................ 5 3 FIGURE 2: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W4520 - LEFT WING [Group 1] . . 65 FIGURE 3: MAIN AFT BOOST PUMP NO. 1 WIRING CHANGE W4519 - LEFT WING [Group 1] . . . 67 FIGURE 4: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W4550 AND W4549 - RIGHT WING [Group 1] ............................................ 6 9 FIGURE 5: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W4550 - RIGHT WING [Group 1] . 82 FIGURE 6: MAIN AFT BOOST PUMP NO. 4WIRING CHANGE W4549 - RIGHT WING [Group 1] . . 84 FIGURE 7: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W602, W1214 AND W1210 - LEFT WING [Group 2] ........................................ 8 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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FIGURE 8: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W602 AND W1214 - LEFT WING [Group 2 ] ................................................ 1 0 0 FIGURE 9: MAIN AFT BOOST PUMP NO. 1 WIRING CHANGE W1210 - LEFT WING [Group 2] . . 102 FIGURE 10: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1216 AND W1212 - RIGHT WING [Group 2] ............................................ 1 0 4 FIGURE 11: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W1216 - RIGHT WING [Group 2] . 117 FIGURE 12: MAIN AFT BOOST PUMP NO. 4 WIRING CHANGE W1212 - RIGHT WING [Group 2] . 119 FIGURE 13: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W602, W1214 AND W1210 - LEFT WING [Group 3] ........................................ 1 2 1 FIGURE 14: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W602 AND W1214 - LEFT WING [Group 3 ] ................................................ 1 3 5 FIGURE 15: MAIN AFT BOOST PUMP NO. 1 WIRING CHANGE W1210 - LEFT WING [Group 3] . . 137 FIGURE 16: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1216 AND W1212 - RIGHT WING [Group 3] ............................................ 1 3 9 FIGURE 17: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W1216 - RIGHT WING [Group 3] . 152 FIGURE 18: MAIN AFT BOOST PUMP NO. 4 WIRING CHANGE W1212 - RIGHT WING [Group 3] . 154 FIGURE 19: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1214 AND W1210 - LEFT WING [Group 4] ............................................ 1 5 6 FIGURE 20: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W1214 - LEFT WING [Group 4] . . 169 FIGURE 21: MAIN AFT BOOST PUMP NO. 1 WIRING CHANGE W1210 - LEFT WING [Group 4] . . 171 FIGURE 22: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1216 AND W1212 - RIGHT WING [Group 4] ............................................ 1 7 3 FIGURE 23: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W1216 - RIGHT WING [Group 4] . 186 FIGURE 24: MAIN AFT BOOST PUMP NO. 4 WIRING CHANGE W1212 - RIGHT WING [Group 4] . 188 FIGURE 25: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W602, W1214 AND W1210 - LEFT WING [Group 5] ........................................ 1 9 0 FIGURE 26: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W602 AND W1214 - LEFT WING [Group 5 ] ................................................ 2 0 4 FIGURE 27: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W1210 - LEFT WING [Group 5] . . 206 FIGURE 28: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1216 AND W1212 - RIGHT WING [Group 5] ............................................ 2 0 8 FIGURE 29: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W1216 - RIGHT WING [Group 5] . 222 FIGURE 30: MAIN AFT BOOST PUMP NO. 4 WIRING CHANGE W1212 - RIGHT WING [Group 5] . 224 FIGURE 31: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W602, W1214 AND W1210 - LEFT WING [Group 6] ........................................ 2 2 6 FIGURE 32: MAIN FWD BOOST PUMP NO. 1 WIRING CHANGE W602 AND W1214 - LEFT WING [Group 6 ] ................................................ 2 4 0 FIGURE 33: MAIN AFT BOOST PUMP NO. 1 WIRING CHANGE W1210 - LEFT WING [Group 6] . . 242 FIGURE 34: FUEL BOOST PUMP WIRE BUNDLE REPLACEMENT W1216 AND W1212 - RIGHT WING [Group 6] ............................................ 2 4 4 FIGURE 35: MAIN FWD BOOST PUMP NO. 4 WIRING CHANGE W1216 - RIGHT WING [Group 6] . 258 FIGURE 36: MAIN AFT BOOST PUMP NO. 4 WIRING CHANGE W1212 - RIGHT WING [Group 6] . 260 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Commercial Airplanes 747 Service Bulletin ALERT SummaryNumber: 747-28A2306Original Issue: October 02, 2014 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Fuel Boost Pump Wiring Change

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 This service bulletin gives instructions to replace the fuel boost pump wire bundles inside the in-tank electrical conduits. The new wire bundles have liners which hold the fuel pump power wires away from the sides of the metal conduit, which prevent chafing. If this change is not done, this chafing can result in arcing between the wiring and the conduit, creating an ignition source in the fuel tank could result in a fire or an explosion.

There have been multiple reports of these wire bundles chafing inside the electrical conduit due to high vibration.

The wire bundles can chafe through the sleeving into the insulation, exposing the wire conductors.

Boeing Service Related Problem 747-SRP-28-0113 is related to this service bulletin.

Boeing Fleet Team Digest (FTD) 747 FTD 28-07001 is related to this service bulletin.

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., ComplianceYesAD Related Paragraph 1.H., Weight and Balance ChangesYesWeight 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 Airplane Flight Manual) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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ReferenceAffectedPlanning Data Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 85901-89S) – Remove the existing boost pump wire bundles from the electrical conduit.

– Measure and trim the wire Liner.

– Insert the new wire bundles inside the wire Liner.

– Install wire bundle assy (including wire liner) through conduit.

– Do a test of the boost pump.

EFFECTIVITY 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, 747SP, 747-400, 747-400F and 747-400D Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

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.

Federal Aviation Administration (FAA) Airworthiness Directive AD 97-26-07 and AD 98-10-10 are related to this service bulletin.

The accomplishment of the change given in this service bulletin is the terminating action for the repetitive inspection as given in Boeing Service Bulletin 747-28A2204 Revision 1, Revision 2, Revision 3.

Boeing recommends that the the change given in this service bulletin be done within 60 months after the original issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the change given in this service bulletin.

MANPOWER Refer to Paragraph 1.G., Manpower.

MATERIAL INFORMATION Boeing Supplied Kits/Parts Refer to Paragraph 2.A., Material - Price and Availability.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BLANK PAGE

Commercial Airplanes 747 Service Bulletin ALERT Number: 747-28A2306 Original Issue: October 02, 2014 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Fuel Boost Pump Wiring Change

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 Document D6-30300, Part 3 for Airplane Variable Number, Line Number, and Serial Number data.

This service bulletin is for the airplanes shown below. An equivalent change is on subsequent production airplanes. Refer to PRR 85901-89S for data about this change.

DESCRIPTIONCONFIGURATIONGROUP 747 airplanes models with single pump configuration located in Main 1 Forward and Aft, and Main 4 Forward and Aft.

-1 747 airplanes models with single pump configuration located in Main 1 Aft, Main 4 Forward and Aft. Main 1 Forward pump has a cross feed manifold switch.

-2 747 airplanes models with single pump configuration with fuel pressure switch located in Main 1 Aft, Main 4 Forward and Aft. Main 1 Forward has single pump and cross feed manifold switch and fuel pressure switch.

-3 747 airplanes models with single pump configuration with fuel pressure switch located in Main 1 Forward and Aft, and Main 4 Forward and Aft.

-4 747-SP only that have single pump configuration for Main 1 Aft, Main 4 Forward and Aft. Main 1 Forward pump and cross feed manifold.

-5 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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DESCRIPTIONCONFIGURATIONGROUP 747-SP only that have single pump configuration with fuel pressure switch for Main 1 Aft, Main 4 Forward and Aft. Main 1 Forward has single pump and cross feed manifold and fuel pressure switch.

-6 Airplane Models:

747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SP, 747SR GroupVariable Number 4RA007 4RA013 4RA015 - RA016 4RA026 - RA029 4RA033 4RA217 4RA253 3RA266 4RA305 3RA316 4RA371 4RA401 - RA402 4RA524 4RA526 3RA528 4RA532 - RA534 4RA539 - RA540 3RA543 - RA544 3RA546 4RA560 4RA631 4RA633 4RA635 4RA651 4RA722 - RA723 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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GroupVariable Number 3RA726 3RA729 3RA731 3RA749 - RA750 4RA902 4RA908 4RA910 4RA912 - RA913 4RA915 - RA916 4RB001 3RB004 - RB006 3RB008 3RB010 - RB011 3RB013 - RB016 2RB411 - RB413 2RB421 3RB601 3RB604 - RB605 3RB607 3RB681 - RB682 3RB691 2RB692 - RB693 2RB696 - RB697 3RB722 2RB723 2RB741 - RB746 2RB748 4RD001 - RD002 3RD004 3RD041 - RD043 3RD045 - RD047 3RD051 - RD058 2RD059 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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GroupVariable Number 2RD083 3RD104 3RD122 - RD125 2RD126 - RD127 3RD131 - RD132 3RD142 2RD143 - RD144 2RD166 - RD167 3RD181 3RD201 - RD203 2RD204 3RD221 2RD224 - RD226 2RD231 - RD235 3RD241 - RD243 3RD252 - RD255 3RD257 2RD258 - RD262 2RD291 - RD292 2RD301 - RD302 3RD352 2RD356 2RD358 3RD361 - RD364 2RD366 3RD381 - RD382 3RD411 - RD412 3RD414 3RD421 - RD424 2RD426 3RD441 2RD451 - RD455 2RD471 - RD475 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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