TextPartly OCR
Some pages are OCR from a scan. OCR can misread letters and numbers.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '69d5826ed5596ae9e1b6fe74554342bfd28dcd22e397756451c09fcb325cc922' ORDER BY p.page"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '69d5826ed5596ae9e1b6fe74554342bfd28dcd22e397756451c09fcb325cc922' ORDER BY p.page
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Commercial Airplanes MD11 Service Bulletin ALERT Number: MD11-78A017 Original Issue: December 04, 2023 Revision 1: June 04, 2024 ATA System: 7800 7834 7151 SUBJECT: ENGINE EXHAUST - Thrust Reverser - Thrust Reverser Wire Harnesses Inspection and Test EXPORT CONTROLLED - This technology or software is subject to the U.S. Export Administration Regulations (EAR), (15 C.F.R. Parts 730-774). No authorization from the U.S. Department of Commerce is required for export, re-export, in-country transfer, or access EXCEPT to country group E:1 or E:2 countries/persons per Supp.1 to Part 740 of the EAR.
9E991ECCN:
Copyright © 2024 The Boeing Company 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: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 1 of 208
4.0
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 2 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
BLANK PAGE
Table of Contents
Revision Transmittal Sheet5
S u m m a r y9
1. PLANNING INFORMATION ........................................ 1 3 A . E f f e c t i v i t y ............................................... 1 3
1. Airplanes ............................................ 1 3 2 . S p a r e s A f f e c t e d ........................................ 1 4 B. Concurrent Requirements ...................................... 1 4 C. Reason ................................................ 1 4 D. Description .............................................. 1 5 E. Compliance .............................................. 1 5 F . A p p r o v a l ............................................... 3 1 G. Manpower .............................................. 3 2 H. Weight and Balance Changes .................................... 3 3 I. Electrical Load Data ......................................... 3 3 J . R e f e r e n c e s .............................................. 3 4
1. Existing Data: ......................................... 3 4
2. Data Supplied with this Service Bulletin: ........................... 3 4
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 3 4 4 . P r o c e s s D a t a : ......................................... 3 4 K. Publications Affected ........................................ 3 4 L. Interchangeability and Intermixability of Parts ........................... 3 5 M. Software Accomplishment Summary ................................ 3 5
2. MATERIAL INFORMATION ........................................ 3 7 A. Material - Price and Availability ................................... 3 7 B. Industry Support Information .................................... 3 7 C. Parts Necessary for Each Airplane ................................. 3 7 1 . K i t s / P a r t s : ........................................... 3 7
2. Parts and Materials Supplied by the Operator: ........................ 3 7
3. Parts Modified and Reidentified: ............................... 3 8
4. Parts Removed and Not Replaced: .............................. 3 8 D. Parts Necessary to Change Spares ................................. 3 8 E. Special Tooling - Price and Availability ............................... 3 8 F. Special Tooling Necessary to do this Service Bulletin ....................... 3 9
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 4 1 A. GENERAL INFORMATION ..................................... 4 1 B. WORK INSTRUCTIONS ....................................... 4 3 FIGURE 1: ENGINE 1 PYLON - PRECOOLER INSTALLED PYLON WIRE HARNESSES - INSPECTION .................................................. 8 1 FIGURE 2: ENGINE 2 PYLON - PRECOOLER INSTALLED PYLON WIRE HARNESSES - INSPECTION .................................................. 9 1 FIGURE 3: ENGINE 3 PYLON - PRECOOLER INSTALLED PYLON WIRE HARNESSES - INSPECTION .................................................. 9 8 FIGURE 4: ENGINE 1 PYLON - PRECOOLER REMOVED PYLON WIRE HARNESSES - INSPECTION ................................................. 1 0 8 FIGURE 5: ENGINE 2 PYLON - PRECOOLER REMOVED PYLON WIRE HARNESSES - INSPECTION ................................................. 1 1 8 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 3 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
FIGURE 6: ENGINE 3 PYLON - PRECOOLER REMOVED PYLON WIRE HARNESSES - INSPECTION ................................................. 1 2 6 FIGURE 7: ENGINE 1 PYLON AND ENGINE 3 PYLON - JUNCTION BOX ASSEMBLY ELECTRICAL CONNECTORS - DISCONNECTION ............................ 1 3 6 FIGURE 8: ENGINE 1 PYLON AND ENGINE 3 PYLON - JUNCTION BOX ASSEMBLY - REMOVAL . 139 FIGURE 9: ENGINE 2 PYLON - JUNCTION BOX ASSEMBLY ELECTRICAL CONNECTORS - DISCONNECTION ...................................... 1 4 3 FIGURE 10: ENGINE 2 PYLON - JUNCTION BOX ASSEMBLY - REMOVAL .............. 1 4 5 FIGURE 11: BENCHWORK - JUNCTION BOX COVER - REMOVAL .................. 1 4 8 FIGURE 12: BENCHWORK - JUNCTION BOX ASSEMBLY - INSPECTION .............. 1 5 0 FIGURE 13: BENCHWORK - JUNCTION BOX COVER - INSPECTION ................ 1 5 2 FIGURE 14: BENCHWORK - JUNCTION BOX COVER - INSTALLATION ............... 1 5 4 FIGURE 15: BENCHWORK - JUNCTION BOX COVER - REPLACEMENT ............... 1 5 6 FIGURE 16: ENGINE 1 PYLON AND ENGINE 3 PYLON - JUNCTION BOX ASSEMBLY - INSTALLATION ................................................. 1 5 8 FIGURE 17: ENGINE 2 PYLON - JUNCTION BOX ASSEMBLY - INSTALLATION ........... 1 6 2 FIGURE 18: ENGINE - LEFT SIDE AND RIGHT SIDE THRUST REVERSER ELECTRICAL HARNESS - INSPECTION ......................................... 1 6 5 FIGURE 19: ENGINE - RIGHT SIDE THRUST REVERSER ELECTRICAL HARNESS - REPLACEMENT ................................................. 1 6 7 FIGURE 20: ENGINE - LEFT SIDE THRUST REVERSER ELECTRICAL HARNESS - REPLACEMENT . 169 FIGURE 21: ENGINE 1 AND ENGINE 3 - CORE MISCELLANEOUS WIRE HARNESS ASSEMBLY - INSPECTION ......................................... 1 7 1 FIGURE 22: ENGINE 2 - CORE MISCELLANEOUS WIRE HARNESS ASSEMBLY - INSPECTION . 175 FIGURE 23: ENGINE - CORE MISCELLANEOUS WIRE HARNESS ASSEMBLY - REPLACEMENT . 179 FIGURE 24: ENGINE - 30 DEGREE BULKHEAD WIRE HARNESS ASSEMBLY - INSPECTION . . . 183 FIGURE 25: ENGINE - 30 DEGREE BULKHEAD WIRE HARNESS ASSEMBLY - REPLACEMENT . 186 APPENDIX A: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 1: WORK PACKAGE 1 - ENGINE 1, ENGINE 2, AND ENGINE 3 PYLON THRUST REVERSER WIRE HARNESSES DETAILED INSPECTION ................................... 1 8 8 APPENDIX B: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 2: WORK PACKAGE 2 -
THRUST REVERSER CONTROL SYSTEM WIRE HARNESSES DETAILED INSPECTIONS A N D W I R E I N T E G R I T Y T E S T S ............................... 1 9 0 APPENDIX C: DATA SHEET - GENERAL INFORMATION ......................... 2 0 6 APPENDIX D: DATA SHEET - DETAILED INSPECTION FINDING .................... 2 0 7 APPENDIX E: DATA SHEET - WIRE INTEGRITY TEST FINDING .................... 2 0 8 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 4 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
Commercial Airplanes MD11 Service Bulletin ALERT Revision Transmittal SheetNumber: MD11-78A017Original Issue: December 04, 2023 Revision 1: June 04, 2024 ATA System: 7800 7834 7151 SUBJECT: ENGINE EXHAUST - Thrust Reverser - Thrust Reverser Wire Harnesses Inspection and Test This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM AD-2023-00888-T, is related to this service bulletin.
No more work is necessary on airplanes changed in accordance with the original issue of this service bulletin.
REASON FOR REVISION This revision is sent to incorporate operator comments and to clarify the inspection/test requirements of the Junction Box Assembly.
These sections were changed:
1. Throughout the service bulletin:
a. At numerous locations, changed "Junction Box" to "Junction Box Assembly".
b. Removed the phrase "Burn Marks".
c. Added additional step to connect connectors after passing Wire Harness Insulation Resistance Test.
2. Boeing warranty statement was updated to add "inspections, configuration changes, and/or repair procedures".
3. In Paragraph 1.A.2, Spares Affected:
a. Changed referenced paragraph from Paragraph 3.B to Paragraph 2.C.
4. In Paragraph 1.E. Compliance:
a. Added Federal Aviation Administration (FAA) Notice of Proposed Rule Making statement.
b. In Table 2, labeled actions 4, 5, 6, 7, 8, and 9 for clarity.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 5 of 208
c. In Table 2, added footnotes (d) and (e).
d. In Table 2, changed required actions for CONDITION 9, CONDITION 10, CONDITION 11, CONDITION 12, CONDITION 13, and CONDITION 14.
e. Added reporting requirement.
5. In Paragraph 1.J. References, added NPRM reference.
6. In Paragraph 1.K. Publications Affected, changed to None.
7. In Paragraph 2.C.2, Parts Necessary for Each Airplane:
a. Changed cage code in footnote (c).
b. Changed footnote (f).
c. Added footnotes (g) and (h).
8. In Paragraph 3.A. General Information, added a caution note, changed note 16 and added notes 17, 18 and 19.
9. In Paragraph 3.B. Work Instructions, Work Package 1, added step 4 for reporting requirement.
10. In Paragraph 3.B. Work Instructions, Work Package 2:
a. Changed Step 6 instructions.
b. Added step 9 for reporting requirement.
c. In PART 5:
(1) Changed Table 4.
(2) Added a new Table 7 for Thrust Control Module Connector Disconnection for Engine 1, Engine 2 and Engine 3. All subsequent tables renumbered.
d. In Part 9, changed all "in accordance ..." with " Refer to ... as an accepted procedure"
e. In Part 10 and Part 13, added a note to examine potential source of voltage (exposed conductor) or electrical discharge (short circuit) during Junction Box inspection when identifying suspected arcing.
f. In PART 12, changed part title and changed work instructions.
g. Deleted instructions of PART 17.
h. In PART 19, changed Table 14 and footnote (a).
i. In PART 22 and PART 23, changed CMM reference.
j. In PART 27, changed Table 19.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 6 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
k. In PART 30, changed Table 20.
l. Changed figures 14 and 15.
11. In Appendix B, Logic Diagram:
a. Changed Title Description Table and Flag Note Table.
b. Changed Action 4, Action 5 and Action 6 diagram flow.
c. Removed Location Letters "A", "B", "C". "D", "E" and "F" and are no longer used in the logic diagram.
12. Changed Appendix C and added new Appendix D and Appendix E.
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.
Pages with no vertical lines have no changes.
REVISION HISTORY December 04, 2023Original Issue:
June 04, 2024Revision 1:
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 7 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 8 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
BLANK PAGE
Commercial Airplanes MD11 Service Bulletin ALERT SummaryNumber: MD11-78A017Original Issue: December 04, 2023 Revision 1: June 04, 2024 ATA System: 7800 7834 7151 SUBJECT: ENGINE EXHAUST - Thrust Reverser - Thrust Reverser Wire Harnesses Inspection and Test
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 Accomplishment of this service bulletin will make sure that any damage to the Thrust Reverser (T/R) Control System wire harnesses, T/R wire harnesses, and engine core compartment electrical harness is found and repaired. Damage to the wire harnesses can cause an uncommanded T/R deployment. If this service bulletin is not done, an in-flight T/R deployment can cause a loss of control and affect Continued Safe Flight and Landing (CSFL).
The Boeing Company has received a report of an MD-11 experiencing an uncommanded T/R deployment of the two transcowls on Engine 1 during takeoff at approximately 500 feet above ground level. In the Engine 1 pylon, damaged wiring was found, which could have caused or contributed to the deployment of the two transcowls.
This service bulletin gives the instructions to inspect, test, and repair the T/R Control System wire harnesses, T/R wire harnesses, and engine core compartment electrical harness. The inspections in this service bulletin will make sure any damage to the T/R Control System wire harnesses, T/R wire harnesses, and engine core compartment electrical harness is found and repaired before an uncommanded deployment of the T/R occurs.
Boeing Service Related Problem (SRP) MD11-SRP-78-0117 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) MD-11 FTD 78-23001 is related to this service bulletin.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 9 of 208
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 AffectedYesSpares Affected Paragraph 1.E., Compliance and Paragraph
1.F., Approval YesAD Related Paragraph 1.F., ApprovalNoAlternative Method of Compliance (AMOC) Paragraph 1.H., Weight and Balance ChangesNoWeight 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) Paragraph 2.C.1., Kits/PartsNoKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION Work Package 1
1. Do a Detailed Inspection of the pylon T/R Control System wire harnesses for damage. Repair or replace any damaged wire found.
Work Package 2
1. Do a Detailed Inspection and wire integrity tests of the T/R Control System wire harnesses, Left Side and Right Side T/R wire harnesses, Junction Box Assembly, 30 degree Bulkhead wire harnesses, and engine core electrical harness for damage. Repair or replace any damaged wire found. Repeat the Detailed Inspection and wire integrity tests of the T/R Control System wire harnesses, Left Side and Right Side T/R wire harnesses, Junction Box Assembly, 30 degree Bulkhead wire harnesses, and engine core electrical harness for damage.
EFFECTIVITY MD-11 and MD-11F Airplanes equipped with General Electric Engines. Refer to Paragraph 1.A.1., Airplanes for the list of affected airplanes.
COMPLIANCE Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM AD-2023-00888-T, is related to this service bulletin.
Refer to Paragraph 1.E., Compliance.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 10 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspections, configuration changes, and/or repair procedures 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 See page 1 for details Original Issue: December 04, 2023 MD11-78A017Revision 1: June 04, 2024 11 of 208 BOEING SERVICE BULLETIN MD11-78A017
ALERTALERT
BOEING SERVICE BULLETIN MD11-78A017
ALERT ALERT WORK PACKAGE 2:
DO A DETAILED INSPECTION AND WIRE INTEGRITY TESTS OF
THE T/R CONTROL SYSTEM WIRE HARNESSES, LEFT SIDE AND
RIGHT SIDE T/R WIRE HARNESSES, JUNCTION BOX ASSEMBLY, 30 DEGREE BULKHEAD WIRE HARNESSES, AND ENGINE CORE ELECTRICAL HARNESS FOR DAMAGE. REPAIR OR REPLACE ANY DAMAGED WIRE FOUND. REPEAT THE DETAILED INSPECTION
AND WIRE INTEGRITY TESTS OF THE T/R CONTROL SYSTEM
WIRE HARNESSES, LEFT SIDE AND RIGHT SIDE T/R WIRE HARNESSES, JUNCTION BOX ASSEMBLY, 30 DEGREE BULKHEAD 3047344
WIRE HARNESSES, AND ENGINE CORE ELECTRICAL HARNESS FOR DAMAGE.
Original Issue: December 04, 2023 Revision 1: June 04, 2024 MD11-78A017 Export Controlled ECCN: 9E991 See page 1 for details 12 of 208