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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-28A1307 Original Issue: May 14, 2012 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Engine Fuel Suction Feed Operational Test 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 © 2012 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Unpublished Work.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: May 14, 2012 737-28A1307 1 of 31
4.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 2 of 31 BOEING SERVICE BULLETIN 737-28A1307
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Table of Contents
Summary5
1. PLANNING INFORMATION7
A. Effectivity7
1. Airplanes7
2. Spares Affected ........................................ 1 3 B. Concurrent Requirements ...................................... 1 3 C. Reason ................................................ 1 3 D. Description .............................................. 1 4 E. Compliance .............................................. 1 4 F. Approval ............................................... 1 6 G. Manpower .............................................. 1 6 H. Weight and Balance Changes .................................... 1 7 I. Electrical Load Data ......................................... 1 7 J. References .............................................. 1 7
1. Existing Data: ......................................... 1 7
2. Data Supplied with this Service Bulletin: ........................... 1 8
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 8 K. Publications Affected ........................................ 1 8 L. Interchangeability and Intermixability of Parts ........................... 1 8 M. Software Accomplishment Summary ................................ 1 8
2. MATERIAL INFORMATION ........................................ 1 9 A. Material - Price and Availability ................................... 1 9 B. Industry Support Information .................................... 1 9 C. Parts Necessary for Each Airplane ................................. 1 9
1. Kits/Parts ............................................ 1 9
2. Parts and Materials Supplied by the Operator ........................ 1 9
3. Parts Modified and Reidentified ................................ 1 9
4. Parts Removed and Not Replaced .............................. 1 9 D. Parts Necessary to Change Spares ................................. 1 9 E. Special Tooling - Price and Availability ............................... 1 9 F. Special Tooling Necessary to do this Service Bulletin ....................... 1 9
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 1 A. GENERAL INFORMATION ..................................... 2 1 B. WORK INSTRUCTIONS ....................................... 2 1 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 3 of 31 BOEING SERVICE BULLETIN 737-28A1307
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 4 of 31 BOEING SERVICE BULLETIN 737-28A1307
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Commercial Airplanes 737 Service Bulletin ALERT SummaryNumber: 737-28A1307Original Issue: May 14, 2012 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Engine Fuel Suction Feed Operational Test
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 provides instructions to operators to perform an Engine Fuel Suction Feed Operational Test on each engine individually. This test is required in order to protect against engine flameout during suction feed operations. The instructions given in this service bulletin are provided to detect and correct failure of the engines fuel suction feed of the fuel system, which could result in dual engine flameout and inability to restart the engines, and consequent forced landing of the airplane.
Accomplishing the fuel system suction feed test and continuing to repeat the testing within the specified compliance times will reduce the possibility of an engine flameout resulting from air ingestion into the engine fuel feed system during low fuel level conditions with inoperative boost pumps .
An Operator reported a 737-400 Engine No. 1 flameout during cruise. The Engine No. 2 continued to operate normally. The flight crew conducted two restart attempts within the start envelope with no success then diverted uneventfully. Another Operator reported a 737-300 Engine No. 2 flameout during taxi to the gate when the start lever was placed in the idle position. Maintenance performed a vacuum test of the fuel feed system and found a crack in the fuel feed tube. The fuel feed tube was replaced, and a vacuum test of the fuel feed system was performed and passed successfully.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
ReferenceAffectedPlanning Data Paragraph 1.E., ComplianceYesAD Related Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 5 of 31
ACTION ENGINE NO. 1, FUEL SUCTION FEED - OPERATIONAL TEST
1. Do the Engine No. 1 Fuel Suction Feed - Operational Test.
2. If the Fuel Suction Feed Operational Test fails isolate the cause, repair, and repeat the Engine No. 1 Fuel Suction Feed - Operational Test.
ENGINE NO. 2, FUEL SUCTION FEED - OPERATIONAL TEST
1. Do the Engine No. 2 Fuel Suction Feed - Operational Test.
2. If the Fuel Suction Feed Operational Test fails isolate the cause, repair, and repeat the Engine No. 2 Fuel Suction Feed - Operational Test.
EFFECTIVITY 737-300/400/500 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.
Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2007-NM-351-AD, is related to this service bulletin.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the test and/or repair procedures given in this service bulletin.
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION None.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 6 of 31 BOEING SERVICE BULLETIN 737-28A1307
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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-28A1307 Original Issue: May 14, 2012 ATA System: 2822 SUBJECT: FUEL - Engine Fuel Feed System - Engine Fuel Suction Feed Operational Test
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 This service bulletin is for the airplane(s) shown below.
Refer to Service Bulletin Index D6-19567 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP 737-300/400/500 airplanes-1 Airplane Models:
737-300, 737-400, 737-500 GroupVariable Number 1PJ301 - PJ302 1PJ551 - PJ561 1PJ601 - PJ615 1PJ811 1PJ816 - PJ817 1PM381 - PM399 1PM401 - PM417 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 7 of 31
GroupVariable Number 1PM541 - PM564 1PP001 - PP054 1PP101 - PP169 1PP181 - PP199 1PP201 - PP205 1PP221 1PP231 - PP243 1PP281 - PP286 1PP301 - PP305 1PP351 - PP353 1PP376 - PP384 1PP391 - PP393 1PP401 - PP440 1PP471 - PP475 1PP501 - PP522 1PP631 - PP634 1PP651 - PP652 1PP671 - PP699 1PP701 - PP733 1PP771 - PP779 1PP801 - PP808 1PP821 - PP827 1PP831 - PP848 1PP851 - PP852 1PP861 - PP877 1PP891 - PP899 1PP901 - PP936 1PP946 - PP948 1PP951 - PP952 1PP961 - PP967 1PP981 - PP991 1PP993 1PQ001 - PQ016 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupVariable Number 1PQ026 - PQ041 1PQ051 - PQ092 1PQ101 - PQ199 1PQ201 - PQ202 1PQ221 - PQ237 1PQ241 - PQ243 1PQ251 - PQ267 1PQ281 - PQ299 1PQ301 - PQ307 1PQ331 - PQ332 1PQ341 - PQ348 1PQ361 - PQ373 1PQ391 - PQ395 1PQ401 - PQ418 1PQ421 1PQ431 - PQ438 1PQ447 - PQ448 1PQ451 1PQ454 1PQ471 - PQ475 1PQ479 - PQ481 1PQ486 - PQ487 1PQ491 - PQ493 1PQ771 - PQ772 1PQ791 - PQ793 1PQ801 - PQ805 1PQ931 - PQ935 1PQ951 1PQ971 - PQ997 1PR001 - PR017 1PR021 - PR034 1PR041 - PR045 1PR061 - PR072 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupVariable Number 1PR077 - PR082 1PR091 - PR092 1PR096 1PR101 1PR121 - PR122 1PR131 - PR132 1PR141 - PR143 1PR161 - PR172 1PR181 1PS601 - PS631 1PS636 - PS638 1PS641 - PS644 1PS651 - PS657 1PS666 - PS669 1PS691 - PS692 1PS701 - PS706 1PS751 - PS799 1PS811 1PS836 - PS837 1PS841 - PS846 1PS851 - PS852 1PS856 1PS861 - PS863 1PS866 - PS868 1PS871 - PS874 1PS896 - PS897 1PS901 - PS941 1PS956 - PS957 1PS961 - PS963 1PS971 - PS978 1PT001 - PT015 1PT021 - PT031 1PT041 - PT064 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupVariable Number 1PT101 - PT105 1PT121 - PT138 1PT146 - PT148 1PT161 - PT170 1PT181 - PT188 1PT211 - PT220 1PT295 1PT301 - PT309 1PT331 - PT360 1PT381 - PT399 1PT401 - PT438 1PT501 - PT517 1PT561 - PT565 1PT581 - PT586 1PT611 - PT621 1PT641 - PT644 1PT651 - PT656 1PT671 - PT672 1PT681 - PT685 1PT701 - PT703 1PT716 - PT717 1PT721 - PT725 1PT801 - PT834 1PT851 - PT854 1PT871 - PT886 1PT901 - PT930 1PT971 - PT973 1PT981 - PT985 1PT996 1PU001 - PU025 1PU301 1PU311 - PU313 1PV001 - PV055 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupVariable Number 1PV201 - PV209 1PV226 - PV229 1PV231 - PV237 1PV271 - PV272 1PV281 - PV287 1PV296 1PV301 - PV302 1PV351 1PV356 - PV357 1PW001 - PW054 1PW061 - PW068 1PW072 1PW086 - PW088 1PW091 - PW094 1PW101 - PW102 1PW106 1PW111 - PW120 1PW156 - PW157 1PW161 - PW171 1PW201 - PW252 1PW261 - PW268 1PW271 - PW276 1PW278 1PW281 - PW293 1PW296 1PW301 - PW327 1PW401 - PW408 1PW411 - PW418 1PW421 - PW424 1PW431 - PW435 1PW441 - PW450 1PW461 - PW467 1PW501 - PW504 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 14, 2012 737-28A1307 12 of 31 BOEING SERVICE BULLETIN 737-28A1307