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Commercial A BOEING Airplanes MD11 Service Bulletin ALERT Number: MD11-28A148 Original Issue: August 29, 2014 ATA System: 2825 SUBJECT: FUEL - Shroud Fuel Drain (All) - Pressure Check/Inspect/Repair Fuel Line Shrouds 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.
ECCN: 9E991
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Unpublished Work.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, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
Original Issue: August 29, 2014 MD11-28A148 1 of 46
3.0
BOEING SERVICE BULLETIN MD11-28A148 ALERT ALERT ТЗЯО ДВОАЯТ ЛОИА ЗАІТИ УАТВІРОЯ ВИІВОВ STOLenO B1587707 BLANK PAGE rsad se Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished 2 of 46 Work - See page 1 for details.
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT Table of Contents Summary 5
1. PLANNING INFORMATION 9 Effectivity . 9
1. Airplanes 9
2. Spares Affected 10 Concurrent Requirements 10 Reason 10 Description 10 Compliance . 11 Approval 13 Manpower 13 Weight and Balance Changes 14 Electrical Load Data 14 References 14
1. Existing Data: 14
2. Data Supplied with this Service Bulletin: 15
3. Installation Drawings Used in the Preparation of this Service Bulletin: 15 K. Publications Affected . 15 L. Interchangeability and Intermixability of Parts 15 M. Software Accomplishment Summary 15
2. MATERIAL INFORMATION. 17 A. Material - Price and Availability . 17 B. Industry Support Information. 17 C. Parts Necessary for Each Airplane 17
1. Kits/Parts . 17
2. Parts and Materials Supplied by the Operator. 17
3. Parts Modified and Reidentified 18
4. Parts Removed and Not Replaced 18 D. Parts Necessary to Change Spares 18 Special Tooling - Price and Availability 18 F. Special Tooling Necessary to do this Service Bulletin. 18 ACCOMPLISHMENT INSTRUCTIONS 19 GENERAL INFORMATION . 19 B. WORK INSTRUCTIONS. 20 FIGURE 1: CENTER CARGO COMPARTMENT LEFT TUNNEL - FUEL LINE SHROUDS - INSPECTION 23 APPENDIX A: CHECK FOR PRESENCE OF FUEL AT THE FUEL SHROUD DRAIN VALVES. 25 APPENDIX B: PRESSURE TEST OF THE TAIL TANK FUEL SHROUD DRAIN SYSTEM. 35 APPENDIX C: PRESSURE TEST OF THE AFT FUSELAGE FUEL SHROUD DRAIN SYSTEM 44 Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 3 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT
BLANK PAGE Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 4 of 46
Commercial A BOEING Airplanes MD11 Service Bulletin
- ALERT Number: MD11-28A148 Summary Original Issue: August 29, 2014 ATA System: 2825 SUBJECT: FUEL - Shroud Fuel Drain (All) - Pressure Check/Inspect/Repair Fuel Line Shrouds
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 An operator reported fuel odor in the cabin. Fuel was found leaking from a cracked fuel line shroud in the left cargo compartment equipment tunnel. There have been a minimum of 10 fuel shroud leaks in the same area since 2001. The Continued Operational Safety Program has made this an "airplane level safety issue" because of the quantity of fuel found below the cargo compartment floor. The current maintenance planning document recommends a check of the fuel shroud system drains at each 1 A check and an air pressure leak check of the fuel shroud system at each 2 C check. Increasing the frequency of the fuel shroud system drain checks and adding an eddy current inspection of the fuel line shrouds between the existing air pressure leak checks will determine the condition of the fuel shrouds. If a cracked condition of a fuel shroud is not corrected, continued operation of an airplane could result in fuel accumulation below the cargo compartment floor and consequent increased risk of fire.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
Planning Data Affected Reference Spares Affected No Paragraph 1.A.2., Spares Affected AD Related Yes Paragraph 1.E., Compliance and Paragraph
1.F., Approval Weight and Balance Change No Paragraph 1.H., Weight and Balance Changes Electrical Load Changed No Paragraph 1.l., Electrical Load Data Publications Affected Yes Paragraph 1.K., Publications Affected Airplane Flight Operations Affected (Flight Crew No Paragraph 1.K., Publications Affected Operations Manual and/or FAA Approved Airplane Flight Manual) Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 5 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT Planning Data Affected Reference Kits/Parts Required No Paragraph 2.C.1., Kits/Parts Operator Supplied Parts/Material Yes Paragraph 2.C.2., Parts and Materials Supplied by the Operator Special Tooling Required Yes Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin ACTION There are two options to do this service bulletin. Choose an option to best fit maintenance capabilities or schedule.
This service bulletin gives instructions to do as follows:
OPTION 1:
1. Do the following:
a. Check for presence of fuel at the fuel shroud drain valves and do maintenance/repairs based on condition found.
b. Do a High Frequency Eddy Current Inspection of the engine feed and tail tank transfer fuel line shrouds and do action based on condition found.
c. Pressure test the engine feed and tail tank transfer fuel line shrouds and do maintenance/repairs based on condition found.
2. Continue with repetitive tests/inspections described in Paragraph 1.E., Compliance, Table 1.
OPTION 2:
1. Do the following:
a. Check for presence of fuel at the fuel shroud drain valves and do maintenance/repairs based on condition found.
b. Pressure test the engine feed and tail tank transfer fuel line shrouds and do maintenance/repairs based on condition found.
2. Continue with repetitive tests/inspections described in Paragraph 1.E., Compliance, Table 2.
EFFECTIVITY MD-11 and MD-11F 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.
Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 6 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspection and/or repair procedures given in this service bulletin.
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
АЯВИКТО ЗАВИНКОЗНО Original Issue: August 29, 2014 BrOS RS 18U0UA Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT
PRESSURE
CHECK/INSPECT/REPAIR
FUEL LINE SHROUDS 2323667 Original Issue: August 29, 2014 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING Work - See page 1 for details. MD11-28A148 8 of 46
Commercial A BOEING Airplanes MD11 Service Bulletin
• ALERT Number: MD11-28A148 Original Issue: August 29, 2014 ATA System: 2825 SUBJECT: FUEL - Shroud Fuel Drain (All) - Pressure Check/Inspect/Repair Fuel Line Shrouds
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.
GROUP CONFIGURATION DESCRIPTION 1 MD-11 and MD-11F Airplanes.
Airplane Models:
MD-11, MD-11F Fuselage Num- Group ber 447 - 449 1 450 - 459 1 460 - 469 1 470 - 479 1 480 - 489 1 490 - 499 1 500 - 509 1 510 - 519 1 520 - 529 1 Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 9 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT Fuselage Num- Group ber 530 - 539 1 540 - 549 1 550 - 559 1 560 - 569 1 BATASS-ITOM 570 - 579 1
PRIVE ATA 580 - 589 590 - 599 1 600 - 609 1 610 - 619 1 КВИА ЯТА МА ЧІ УПМТОЗВУ АТ
SUBADURA RI ROTARERO WS BET 620 - 629 1 630 - 639 1 640 - 646 1
2. Spares Affected None.
B. Concurrent Requirements None.
C. Reason An operator reported fuel odor in the cabin. Fuel was found leaking from a cracked fuel line shroud in the left cargo compartment equipment tunnel. There have been a minimum of 10 fuel shroud leaks in the same area since 2001. The Continued Operational Safety Program has made this an "airplane level safety issue" because of the quantity of fuel found below the cargo compartment floor. The current maintenance planning document recommends a check of the fuel shroud system drains at each 1 A check and an air pressure leak check of the fuel shroud system at each 2 C check. Increasing the frequency of the fuel shroud system drain checks and adding an eddy current inspection of the fuel line shrouds between the existing air pressure leak checks will determine the condition of the fuel shrouds. If a cracked condition of a fuel shroud is not corrected, continued operation of an airplane could result in fuel accumulation below the cargo compartment floor and consequent increased risk of fire.
D. Description There are two options to do this service bulletin. Choose an option to best fit maintenance capabilities or schedule. This service bulletin gives instructions to do as follows:
OPTION 1:
1. Do the following:
Original Issue: August 29, 2014 Export Controlled ECCN: 9E991 - BOEING MD11-28A148 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 10 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT
a. Check for presence of fuel at the fuel shroud drain valves and do maintenance/repairs based on condition found.
b. Do a High Frequency Eddy Current Inspection of the engine feed and tail tank transfer fuel line shrouds and do action based on condition found.
c. Pressure test the engine feed and tail tank transfer fuel line shrouds and do maintenance/repairs based on condition found.
2. Continue with repetitive tests/inspections described in Paragraph 1.E., Compliance, Table 1.
OPTION 2:
1. Do the following:
a. Check for presence of fuel at the fuel shroud drain valves and do maintenance/repairs based on condition found.
b. Pressure test the engine feed and tail tank transfer fuel line shrouds and do maintenance/repairs based on condition found.
2. Continue with repetitive tests/inspections described in Paragraph 1.E., Compliance, Table 2.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones Model Zone MD-11, MD-11F 181, 316 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.
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Original Issue: August 29, 2014 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING MD11-28A148 Work - See page 1 for details. 11 of 46
BOEING SERVICE BULLETIN MD11-28A148
ALERT ALERT Select one of the following Compliance Tables:
Option 1 - Table 1 - Check Fuel Shroud Drain Valves for Presence of Fuel, Pressure Check Fuel Line Shrouds and Eddy Current Inspect Fuel Line Shrouds for Cracks Condition Action Compliance Time Repeat Interval (Whichever Occurs (Whichever Occurs First) First) All Airplanes. Check Fuel Shroud Within 6 months after 10 days Drain Valves for Pres- the original issue date of ence of Fuel. this service bulletin.
Pressure Tests of the Within 15,000 flight 15,000 flight hours (a) Tail Tank Fuel Shroud hours from the original Drain System and the issue date of this service Aft Fuselage Fuel bulletin. (a) Shroud Drain System Do High Frequency Ed- Within 7,500 flight hours 7,500 flight hours (a) dy Current Inspection of from the original issue fuel line shrouds. date of this service bulletin. (a) CONDITION 1: Leakage Repair leaking Before further flight rate becomes more than
32.0 fluid-ounces in a 24 hour period CONDITION 2: No No further action re- Crack(s) Found by High quired.
Frequency Eddy Current Inspection or Pressure Test CONDITION 3: Crack(s) Repair crack(s). Before further flight.
Found by High Frequency Eddy Current Inspection or Pressure Test
(a) When a pressure test of the fuel shroud drain system is performed, it can be used as an acceptable alternate method to the eddy current inspection provided the next eddy current inspection is done within the 7,500 flight hour interval. However, performing an eddy current inspection cannot be used as an acceptable alternate method for the pressure test of the fuel shroud drain system.
Original Issue: August 29, 2014 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING MD11-28A148 Work - See page 1 for details. 12 of 46