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Commercial Airplanes MD11 Service Bulletin ALERT Number: MD11-24A204 Original Issue: July 19, 2002 Revision 2: April 14, 2021 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power, General - Install Tube Sleeving, Grommet, and Spacer on Observer Station Upper Main Circuit Breaker Panel Wiring 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 © 2002 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Unpublished Work.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: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 1 of 59
4.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 2 of 59 BOEING SERVICE BULLETIN MD11-24A204
ALERTALERT
BLANK PAGE
Table of Contents
Revision Transmittal Sheet5
S u m m a r y9
1. PLANNING INFORMATION ........................................ 1 1 A . E f f e c t i v i t y ............................................... 1 1
1. Airplanes ............................................ 1 1 2 . S p a r e s A f f e c t e d ........................................ 1 2 B. Concurrent Requirements ...................................... 1 2 C. Reason ................................................ 1 2 D. Description .............................................. 1 2 E. Compliance .............................................. 1 3 F . A p p r o v a l ............................................... 1 6 G. Manpower .............................................. 1 6 H. Weight and Balance Changes .................................... 1 7 I. Electrical Load Data ......................................... 1 7 J . R e f e r e n c e s .............................................. 1 7
1. Existing Data: ......................................... 1 7
2. Data Supplied with this Service Bulletin: ........................... 1 7
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 7 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 . K i t s / P a r t s : ........................................... 1 9
2. Parts and Materials Supplied by the Operator: ........................ 1 9
3. Parts Modified and Reidentified: ............................... 2 2
4. Parts Removed and Not Replaced: .............................. 2 2 D. Parts Necessary to Change Spares ................................. 2 2 E. Special Tooling - Price and Availability ............................... 2 2 F. Special Tooling Necessary to do this Service Bulletin ....................... 2 2
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 3 A. GENERAL INFORMATION ..................................... 2 3 B. WORK INSTRUCTIONS ....................................... 2 5 F I G U R E 1 : [ T H I S F I G U R E I S D E L E T E D ] ................................. 2 8 F I G U R E 2 : [ T H I S F I G U R E I S D E L E T E D ] ................................. 2 9 FIGURE 3: WIRE ASSEMBLY - INSPECTION [Group 1, Configuration 1-2] .............. 3 0 FIGURE 4: TUBE SLEEVING INSTALLATION - MODIFICATION [Group 1, Configuration 2] ..... 3 2 FIGURE 5: OBSERVER STATION UPPER MAIN CIRCUIT BREAKER PANEL - SLEEVING, GROMMET SPACER AND BRACKET - INSPECTION [Group 1, Configuration 1] ............ 3 9 FIGURE 6: OBSERVER STATION UPPER MAIN CIRCUIT BREAKER PANEL - BRACKET - TRIM AND IDENTIFY [Group 1, Configuration 1] ............................. 4 3 FIGURE 7: OBSERVER STATION UPPER MAIN CIRCUIT BREAKER PANEL - GROMMET - INSTALLATION [Group 1, Configuration 1] .......................... 4 6 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 3 of 59 BOEING SERVICE BULLETIN MD11-24A204
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FIGURE 8: OBSERVER STATION UPPER MAIN CIRCUIT BREAKER PANEL - SPACER - INSTALLATION [Group 1, Configuration 1] ................................... 5 0 FIGURE 9: OBSERVER STATION UPPER MAIN CIRCUIT BREAKER PANEL - SLEEVING AND WIRING
- ROUTING AND INSTALLATION [Group 1, Configuration 1] ................ 5 5 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 4 of 59 BOEING SERVICE BULLETIN MD11-24A204
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Commercial Airplanes MD11 Service Bulletin ALERT Revision Transmittal SheetNumber: MD11-24A204Original Issue: July 19, 2002 Revision 2: April 14, 2021 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power, General - Install Tube Sleeving, Grommet, and Spacer on Observer Station Upper Main Circuit Breaker Panel Wiring This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION 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.
Effects of this Revision on airplanes on which Original Issue or Revision 1 was previously done:
ActionConditionGroup Do a General Visual Inspection of the right observer station upper main circuit breaker panel and wiring for missing installation of sleeving, grommets and spacers, and do an inspection to determine bracket part number and do applicable on condition actions as outlined in Group 1 Configuration 1 Work Instructions.
Airplanes that have done any work instructions on Original Issue or Revision 1 of this service bulletin.
Group 1 Do a General Visual Inspection of wire assemblies ABS9110 and ABS9115 for damage and do applicable on condition actions as outlined in Group 1 Configuration 2 Work Instructions.
Airplanes that have not done any work instructions on Original Issue or Revision 1 of this service bulletin.
Group 1
REASON FOR REVISION This revision is sent to give instructions to do a General Visual Inspection of the right observer station upper main circuit breaker panel and wiring. Boeing has received reports that the changes done on the observer station upper main circuit breaker panel may have been removed from the airplane.
These sections were changed:
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 5 of 59
1. Summary, ACTION, separated Group 1 Configurations and added description.
2. Summary, COMPLIANCE, changed compliance statement.
3. Summary, MANPOWER, removed manpower table and added reference statement.
4. Paragraph 1.A.1., Airplanes:
a. Added airplane applicability statement.
b. In Group Configuration Table, changed terminology of revision level.
5. Paragraph 1.C., Reason, added revision information.
6. Paragraph 1.D., Description, separated Group 1, Configurations and added descriptions, revision information and maintenance zone table.
7. Paragraph 1.E., Compliance, changed compliance statement and added compliance tables.
8. Paragraph 1.F., Approval, changed approval statement.
9. Paragraph 1.G., Manpower, added table titles, updated task hours and added notes.
10. Paragraph 1.K.2., added Damage Tolerance Based Structural Inspection information.
11. Paragraph 1.M., Software Accomplishment Summary, added section.
12. Paragraph 2.C.2, Parts and Materials Supplied by the Operator, added statement, removed vendor notes, and corrected part numbers.
13. Paragraph 3.A., General Information, added general notes.
14. Paragraph 3.B., Work Instructions:
a. Group 1, Configuration 1 added inspection conditions, energize power and serviceable steps.
b. Group 1, Configuration 2 added inspection conditions, energize power and serviceable steps.
15. FIGURE 1: Deleted.
16. FIGURE 2, Deleted.
17. FIGURE 3:
a. Added Group 1, Configuration 1-2 applicability.
b. Added inspection area location.
c. Notes: Added General Visual Inspection.
18. FIGURE 4:
a. Added Group 1, Configuration 2 applicability.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 6 of 59 BOEING SERVICE BULLETIN MD11-24A204
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b. Added wire assembly protection and touch up instructions.
c. Added SOPM reference.
19. Added FIGURE 5.
20. Added FIGURE 6.
21. Added FIGURE 7.
22. Added FIGURE 8.
23. Added FIGURE 9.
The data given in Information Notice MD11-24A204 IN 02 is included in this revision.
Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity and format changes, to show the location of all content changes.
Terminology has been changed in the Work Instructions to agree with the terminology defined in Paragraph
3.A., General Information - Note 14.
Pages with no vertical lines have no changes.
REVISION HISTORY July 19, 2002Original Issue:
November 03, 2005Revision 1:
April 14, 2021Revision 2:
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 7 of 59 BOEING SERVICE BULLETIN MD11-24A204
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 8 of 59 BOEING SERVICE BULLETIN MD11-24A204
ALERTALERT
BLANK PAGE
Commercial Airplanes MD11 Service Bulletin ALERT SummaryNumber: MD11-24A204Original Issue: July 19, 2002 Revision 2: April 14, 2021 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power, General - Install Tube Sleeving, Grommet, and Spacer on Observer Station Upper Main Circuit Breaker Panel Wiring
THIS DOCUMENT 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 DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER.
CONCURRENT REQUIREMENTS None.
BACKGROUND Two operators have reported incidents of wires chafing against inboard upper corner of the observer station circuit breaker panel. It has been determined that this condition allows for the chafed electrical wires to arc against the metal panel during the opening and closing of the panel. If not corrected, wire chafing and arcing on the panel could cause damage to equipment and/or loss of electrical power. Repairing electrical wires, if required and revising/rerouting wire assemblies for clearance will minimize the possibility of wires chafing/arcing against the observer station circuit breaker panel during opening and closing.
ACTION In the observer station upper main circuit breaker panel:
Group 1, Configuration 1:
1. Do a General Visual Inspection of the right observer station upper main circuit breaker panel and wiring for missing installation of sleeving, grommets and spacers, and do an inspection to determine bracket part number and do applicable on condition actions..
Group 1, Configuration 2:
1. Do a General Visual Inspection of wire assemblies ABS9110 and ABS9115 for damage and do applicable on condition actions.
EFFECTIVITY All MD-11 and MD-11F airplanes. Refer to Paragraph 1.A.1 for detailed effectivity.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 9 of 59
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 MD-11 airplanes in warranty as of October 1, 2000. Please refer to Paragraph 2.B., Industry Support Information.
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Operator Supplied Parts/Materials.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 10 of 59 BOEING SERVICE BULLETIN MD11-24A204
ALERTALERT
Commercial Airplanes MD11 Service Bulletin ALERT Number: MD11-24A204 Original Issue: July 19, 2002 Revision 2: April 14, 2021 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power, General - Install Tube Sleeving, Grommet, and Spacer on Observer Station Upper Main Circuit Breaker Panel Wiring
THIS DOCUMENT 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 DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes This bulletin is applicable to MD-11, MD-11F Airplane(s), line number(s) 447-449, 451-464, 466-489, 491-517, 519-552, 554-646 in 1 Group(s). Where the effectivity is presented with hyphens between line numbers, the airplane applicability means "through" and "inclusive", e.g. line numbers 1-9 means line numbers 1 through 9 inclusive.
This service bulletin is for the airplanes shown below:
DESCRIPTIONCONFIGURATIONGROUP MD-11 and MD-11F Airplanes.-1 Airplanes that have done Original Issue or Revision 1 of this service bulletin.
1 Airplanes that have not done Original Issue and Revision 1 of this service bulletin.
2 Airplane Models:
MD-11, MD-11F GroupFuselage Number 1447 - 449 1451 - 464 GroupFuselage Number 1466 - 489 1491 - 517 GroupFuselage Number 1519 - 552 1554 - 646 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 11 of 59
2. Spares Affected None.
B. Concurrent Requirements None.
C. Reason Two operators have reported incidents of wires chafing against inboard upper corner of the observer station circuit breaker panel. It has been determined that this condition allows for the chafed electrical wires to arc against the metal panel during the opening and closing of the panel. If not corrected, wire chafing and arcing on the panel could cause damage to equipment and/or loss of electrical power.
Repairing electrical wires, if required and revising/rerouting wire assemblies for clearance will minimize the possibility of wires chafing/arcing against the observer station circuit breaker panel during opening and closing.
Revision 1: Sent to provide additional instructions to trim the observer station upper main circuit breaker panel for more clearance and stress relief when panel is open. The data given in Information Notice MD11-24A204 IN 01, dated August 9, 2002 is included in this revision.
Revision 2: Sent to give instructions to do a General Visual Inspection of the right observer station upper main circuit breaker panel and wiring. Boeing has received reports that the changes done on the observer station upper main circuit breaker panel may have been removed from the airplane.
The data given in Information Notice MD11-24A204 IN 02 is included in this revision.
D. Description In the observer station upper main circuit breaker panel:
Group 1, Configuration 1:
1. Do a General Visual Inspection of the right observer station upper main circuit breaker panel and wiring for missing installation of sleeving, grommets and spacers, and do an inspection to determine bracket part number and do applicable on condition actions..
Group 1, Configuration 2:
1. Do a General Visual Inspection of wire assemblies ABS9110 and ABS9115 for damage and do applicable on condition actions.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 19, 2002 MD11-24A204Revision 2: April 14, 2021 12 of 59 BOEING SERVICE BULLETIN MD11-24A204