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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-28A1210 Original Issue: August 02, 2010 ATA System: 2822 SUBJECT: FUEL- Engine Fuel Feed System - Replacement of the P5-2 Fuel System Module to Supply Low Fuel Pressure Master Caution Annunciation Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 730-774). 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BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2010 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.
This document includes proprietary information owned by The Boeing Company and/or one or more third parties.
Treatment of the document and the information it contains is governed by contract with Boeing. For more information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.
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 the Boeing livery 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.
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Original Issue: August 02, 2010 737-28A1210 1 of 47
3.0
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Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected ........................................ 2 5 B. Concurrent Requirements ...................................... 2 5 C. Reason ................................................ 2 6 D. Description .............................................. 2 6 E. Compliance .............................................. 2 7 F. Approval ............................................... 2 8 G. Manpower .............................................. 2 8 H. Weight and Balance Changes .................................... 2 9 I. Electrical Load Data ......................................... 2 9 J. References .............................................. 2 9
1. Existing Data: ......................................... 2 9
2. Data supplied with this Service Bulletin: ........................... 3 0
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 3 0
4. Process Data: ......................................... 3 0 K. Publications Affected ........................................ 3 0 L. Interchangeability and Intermixability of Parts ........................... 3 1
2. MATERIAL INFORMATION ........................................ 3 3 A. Material - Price and Availability ................................... 3 3 B. Industry Support Information .................................... 3 3 C. Parts Necessary For Each Airplane ................................. 3 3
1. Kits/Parts: ........................................... 3 3
2. Parts and Materials Supplied by the Operator: ........................ 3 3
3. Parts Modified and Reidentified: ............................... 3 6
4. Parts Removed and Not Replaced: .............................. 3 6 D. Parts Necessary to Change Spares ................................. 3 6 E. Special Tooling - Price and Availability ............................... 3 6 F. Special Tooling Necessary to do this Service Bulletin ....................... 3 6
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 3 7 A. GENERAL INFORMATION ..................................... 3 7 B. WORK INSTRUCTIONS ....................................... 3 8 FIGURE 1: REMOVAL OF THE P5-2 FUEL SYSTEM MODULE [Group 2-13] ............. 4 0 FIGURE 2: INSTALLATION OF THE P5-2 FUEL SYSTEM MODULE [Group 2-13] ........... 4 2 FIGURE 3: REMOVAL OF THE P5-2 FUEL SYSTEM MODULE [Group 14-28] ............. 4 4 FIGURE 4: INSTALLATION OF THE P5-2 FUEL SYSTEM MODULE [Group 14-28] .......... 4 6
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Commercial Airplanes 737 Service Bulletin ALERT SummaryNumber: 737-28A1210Original Issue: August 02, 2010 ATA System: 2822 SUBJECT: FUEL- Engine Fuel Feed System - Replacement of the P5-2 Fuel System Module to Supply Low Fuel Pressure Master Caution Annunciation
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 Refer to Paragraph 1.B., Concurrent Requirements.
BACKGROUND This service bulletin is the result of the safety analysis done by Boeing under SFAR 88, Fuel Tank System Fault Tolerance Evaluation Requirements. Initial results from the Fuel System Safety Analysis shows that fuel boost pumps that run dry could cause an overheat condition external of the fuel boost pump explosion resistance area that is open to the fuel boost pump inlet. An overheat condition in this area could possibly cause an unwanted ignition source for the fuel vapors in the fuel tank and could cause a fire or explosion.
This service bulletin gives instructions to replace the P5-2 Fuel System Module installed in the flight compartment with a changed P5-2 Fuel System Module. Replacement of the P5-2 Fuel System Module supplies the low fuel pressure master caution annunciation. All the equipment and wiring changes for the Master Caution system are internal to the P5-2 Fuel System Module. The changed master caution logic gives the necessary indication so that the fuel boost pumps can be turned off by the flight crew so the fuel boost pumps do not operate dry.
The new P5-2 Fuel System Module lets the Master Caution light come on when only one center or auxiliary tank fuel boost pump low pressure light is on for 10 seconds. Before this change, the low pressure light came on when both the center or auxiliary tank fuel boost pumps had low pressure.
ACTION (PRR 35440-20R) Group 1:
Operators should tell Boeing about this modification to get the engineering and accomplishment instructions for this modification.
Group 2-28:
In the flight compartment, at the P5 overhead panel, remove the P5-2 Fuel System Module. Install a changed P5-2 Fuel System Module. Do a test to make sure that the P5-2 Fuel System Module operates correctly.
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EFFECTIVITY 737-100/-200/-200C/-300/-400/-500 airplanes. Refer to Service Bulletin Paragraph 1.A.1 for effectivity.
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.
Boeing recommends that the change given in this service bulletin be done within 36 months after the original issue date of this service bulletin.
Group 1:
Operators should tell Boeing about this modification to get the engineering and accomplishment instructions for this modification.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Operator Supplied Parts/Materials.
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Original Issue: August 02, 2010 737-28A1210 6 of 47 BOEING SERVICE BULLETIN 737-28A1210
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BOEING SERVICE BULLETIN 737-28A1210
ALERT ALERT SEE
ENG VALVE ENG VALVE REPLACE P5-2 FUEL
SYSTEM MODULE AND
DO FUEL SYSTEM
FUNCTIONAL TEST
PRESSURE PRESSURE
FUEL PUMPS LOM
PRESSURE FUEL PUMPS A—A
TYPICAL FWD Original Issue: August 02, 2010 737-28A1210
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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-28A1210 Original Issue: August 02, 2010 ATA System: 2822 SUBJECT: FUEL- Engine Fuel Feed System - Replacement of the P5-2 Fuel System Module to Supply Low Fuel Pressure Master Caution Annunciation
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 airplanes shown below. Refer to PRR 35440-20R for data about this change.
Refer to Service Bulletin Index Document D6-19567, Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP Airplanes with different P5-2 Fuel System Module part number.-1 Airplanes with different P5-2 Fuel System Module part number.-2 Airplanes with different P5-2 Fuel System Module part number.-3 Airplanes with different P5-2 Fuel System Module part number.-4 Airplanes with different P5-2 Fuel System Module part number.-5 Airplanes with different P5-2 Fuel System Module part number.-6 Airplanes with different P5-2 Fuel System Module part number.-7 Airplanes with different P5-2 Fuel System Module part number.-8 Airplanes with different P5-2 Fuel System Module part number.-9
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DESCRIPTIONCONFIGURATIONGROUP Airplanes with different P5-2 Fuel System Module part number.-10 Airplanes with different P5-2 Fuel System Module part number.-11 Airplanes with different P5-2 Fuel System Module part number.-12 Airplanes with different P5-2 Fuel System Module part number.-13 Airplanes with different P5-2 Fuel System Module part number.-14 Airplanes with different P5-2 Fuel System Module part number.-15 Airplanes with different P5-2 Fuel System Module part number.-16 Airplanes with different P5-2 Fuel System Module part number.-17 Airplanes with different P5-2 Fuel System Module part number.-18 Airplanes with different P5-2 Fuel System Module part number.-19 Airplanes with different P5-2 Fuel System Module part number.-20 Airplanes with different P5-2 Fuel System Module part number.-21 Airplanes with different P5-2 Fuel System Module part number.-22 Airplanes with different P5-2 Fuel System Module part number.-23 Airplanes with different P5-2 Fuel System Module part number.-24 Airplanes with different P5-2 Fuel System Module part number.-25 Airplanes with different P5-2 Fuel System Module part number.-26 Airplanes with different P5-2 Fuel System Module part number.-27 Airplanes with different P5-2 Fuel System Module part number.-28 Airplane Models:
737-100, 737-200, 737-200C, 737-300, 737-400, 737-500 GroupVariable Number 1PA001 - PA022 1PA099 1PA231 - PA232
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GroupVariable Number 1PC001 - PC005 1PG001 - PG075 1PG199 1PG201 - PG230 1PG251 - PG255 1PG271 - PG279 1PG301 - PG314 1PG331 - PG332 1PG351 - PG356 1PG375 1PG401 - PG403 1PG431 - PG442 1PG471 - PG475 1PG501 - PG505 1PG571 - PG583 15PG584 - PG586 1PG621 - PG630 1PG651 - PG652 1PG701 - PG705 15PH001 15PH011 - PH013 15PH021 - PH024 1PH701 - PH715 1PH731 - PH732 1PH741 - PH742 15PH743 1PJ001 - PJ002 14PJ003 17PJ004 - PJ006 26PJ007 - PJ009 1PJ031 - PJ032 1PJ071 - PJ072 1PJ101 - PJ104
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GroupVariable Number 15PJ105 - PJ109 18PJ110 - PJ119 23PJ201 - PJ219 10PJ301 - PJ302 10PJ551 - PJ561 10PJ601 - PJ615 12PJ811 12PJ816 - PJ817 15PK026 - PK028 18PK029 15PK041 - PK047 18PK048 - PK053 15PK061 - PK065 18PK066 - PK067 25PK068 - PK069 24PK070 15PK081 18PK082 15PK091 18PK092 - PK099 15PK101 - PK103 15PK111 - PK119 18PK120 15PK141 - PK146 18PK201 - PK204 18PK211 - PK215 21PK216 - PK220 18PK221 - PK223 18PK231 - PK241 17PK251 - PK256 26PK257 17PK258 18PK271 - PK274
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