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Commercial Airplanes 777 Service Bulletin ALERT Number: 777-55A0018 Original Issue: July 27, 2011 Revision 1: March 06, 2012 ATA System: 5510 SUBJECT: STABILIZERS - Horizontal Stabilizer - Pivot Pin - Inspection, Rework, and Replacement 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BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2011 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: July 27, 2011 777-55A0018Revision 1: March 06, 2012 1 of 47
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Original Issue: July 27, 2011 777-55A0018Revision 1: March 06, 2012 2 of 47 BOEING SERVICE BULLETIN 777-55A0018
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Table of Contents
Revision Transmittal Sheet5
Summary9
1. PLANNING INFORMATION ........................................ 1 3 A. Effectivity ............................................... 1 3
1. Airplanes ............................................ 1 3
2. Spares Affected ........................................ 1 8 B. Concurrent Requirements ...................................... 1 8 C. Reason ................................................ 1 8 D. Description .............................................. 1 9 E. Compliance .............................................. 1 9 F. Approval ............................................... 2 1 G. Manpower .............................................. 2 1 H. Weight and Balance Changes .................................... 2 2 I. Electrical Load Data ......................................... 2 2 J. References .............................................. 2 2
1. Existing Data .......................................... 2 2
2. Data supplied with this Service Bulletin ............................ 2 2
3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 2 2 K. Publications Affected ........................................ 2 3 L. Interchangeability and Intermixability of Parts ........................... 2 3
2. MATERIAL INFORMATION ........................................ 2 5 A. Material - Price and Availability ................................... 2 5 B. Industry Support Information .................................... 2 5 C. Parts Necessary For Each Airplane ................................. 2 5
1. Kits/Parts ............................................ 2 5
2. Parts and Materials Supplied by the Operator ........................ 2 7
3. Parts Modified and Reidentified ................................ 2 7
4. Parts Removed and Not Replaced .............................. 2 8 D. Parts Necessary to Change Spares ................................. 2 8 E. Special Tooling - Price and Availability ............................... 2 8 F. Special Tooling Necessary to do this Service Bulletin ....................... 2 8
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 9 A. GENERAL INFORMATION ..................................... 2 9 B. WORK INSTRUCTIONS ....................................... 3 0 FIGURE 1: 182W6401-1 OUTER PIVOT PIN REWORK ......................... 3 8 FIGURE 2: 182W6401-2 OR 182W6401-301 INNER PIVOT PIN REWORK .............. 4 2 FIGURE 3: 182W6403-1 ANTI-ROTATION PLATE REWORK [Group 1] ................ 4 4 APPENDIX A: HORIZONTAL STABILIZER TEMPORARY PIVOT PIN FABRICATION/INSTALLATION . 46
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Original Issue: July 27, 2011 777-55A0018Revision 1: March 06, 2012 3 of 47 BOEING SERVICE BULLETIN 777-55A0018
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Original Issue: July 27, 2011 777-55A0018Revision 1: March 06, 2012 4 of 47 BOEING SERVICE BULLETIN 777-55A0018
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Commercial Airplanes 777 Service Bulletin ALERT Revision Transmittal SheetNumber: 777-55A0018Original Issue: July 27, 2011 Revision 1: March 06, 2012 ATA System: 5510 SUBJECT: STABILIZERS - Horizontal Stabilizer - Pivot Pin - Inspection, Rework, and Replacement 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) 2011-NM-181-AD is related to this service bulletin.
No more work is necessary on airplanes changed in accordance with the original issue of this service bulletin.
No airplanes were added to the service bulletin effectivity. However, Group 1 from the original issue of this service bulletin has been divided into two groups. 777-200 and 777-300 airplanes, line numbers 423 through 868, which were included in Group 1 in the original issue of this service bulletin, have been moved to new Group
3. Group 1 now includes 777-200 and 777-300 airplanes line numbers 1 through 422. Airplane Group 2 has not been changed.
REASON FOR REVISION This revision is sent to include a new top kit for 777-200 and 777-300 airplanes, line numbers 1 through 422.
For these airplanes, new Top Kit 005W3480-2 includes new anti-rotation plates for use when accomplishing the Paragraph 3.B., PART 1 and PART 2 replacement. An alternative to rework existing anti-rotation plates has also been added as new Figure 3.
These sections were changed:
1. In the BACKGROUND section of the Summary, the Summary Evaluation Table was added.
2. In the COMPLIANCE section of the Summary, reference to FAA NPRM 2011-NM-181-AD was added.
3. In Paragraph 1.A.1., Airplanes, the description of Group 1 was changed. A description of new Group 3 was added.
4. In Paragraph 1.C., Reason, a description of the changes in Revision 1 was added.
5. In Paragraph 1.D., Description, a "no more work" statement was added for Revision 1. Maintenance Zones were added for Group 3.
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6. In Paragraph 1.E., Compliance, reference to FAA NPRM 2011-NM-181-AD was added. Tables 1, 2 and 3 were changed in several places to specify the work in Paragraph 3.B., Work Instructions, PART 1 and PART 2, not PART 1 or PART 2. The Compliance Time grace period in Table 1 was changed to "within 750 days after the Revision 1 date of this service bulletin." Table 2 was marked as being applicable to Group 3. The data in the "Repeat Interval" column in Tables 2 and 3 was changed to add "after the most recent inspection".
7. In Paragraph 1.G., Manpower, the Task descriptions in the table have been changed due to changes in Paragraph 3.B., Work Instructions.
8. In Paragraph 1.J.1., Existing Data, reference to FAA NPRM 2011-NM-181-AD was added.
9. In Paragraph 2.A., Material - Price and Availability, new Top Kit 005W3480-2 was added.
10. In Paragraph 2.C.1., Kits/Parts, new Top Kit 005W3480-2 was added for Group 1 airplanes. Existing Top Kit 005W3480-1 was changed to be applicable to Group 2 and Group 3 airplanes.
11. In Paragraph 2.C.2., Parts and Materials Supplied by the Operator, Retention Pin 182W6401-5, Anti-Rotation Plate 182W6403-1, Anti-Rotation Plate 182W6403-301 and Nut 182W6404-5 were added. Conditions under which these parts may be needed were also added.
12. In Paragraph 2.C.3., Parts Modified and Reidentified, the anti-rotation plate was added for Group 1 airplanes.
13. In Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin, information for jacking and support of the horizontal stabilizer was added.
14. In Paragraph 3.A., General Information, a note that did not allow intermixing of new and reworked pivot pins on an airplane was deleted. A new note was added to specify that the pivot pins should only be removed from one side of the airplane at a time.
15. In Paragraph 3.B., Work Instructions, Step 1 was changed to specify removal of the load from the horizontal stabilizer pivot joint.
16. In Paragraph 3.B., Work Instructions, PART 1 and PART 2 were changed. PART 1, which previously showed only pivot pin replacement, now shows Left Side pivot pin replacement or rework. PART 2, which previously showed only pivot pin rework, now shows Right Side pivot pin replacement or rework. This reorganization of PART 1 and PART 2 results from adding the allowance to intermix new and reworked pivot pins during the initial replacement or rework, which was not allowed in the original issue of this service bulletin.
17. In Paragraph 3.B., Work Instructions, steps were added to PART 1 and PART 2 to remove and replace or rework the anti-rotation plates on Group 1 airplanes. The After-Replacement / Rework inspection instructions in PART 3 were changed to add applicability to new Group 3 and to add anti-rotation plate replacement or rework.
18. In FIGURE 1 and FIGURE 2, footnote (a) was changed. Dry film lubricant may have been previously removed when chrome plate was removed.
19. New FIGURE 3 was added for anti-rotation plate rework.
The data given in Information Notice 777-55A0018 IN 01 is included in this revision. IN 01 was sent to advise operators that new or reworked anti-rotation plates would be necessary on line number 1 - 422 airplanes if new pivot pins are installed. IN 01 also advised operators of upcoming changes to horizontal stabilizer jacking equipment SPL-2037 (Part Number J55004-1), which is referred to in 777 AMM 55-17-01 for pivot joint disassembly.
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Original Issue: July 27, 2011 777-55A0018Revision 1: March 06, 2012 6 of 47 BOEING SERVICE BULLETIN 777-55A0018
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Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location of important changes.
Pages with no vertical lines have no important changes.
REVISION HISTORY July 27, 2011Original Issue:
March 06, 2012Revision 1:
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Commercial Airplanes 777 Service Bulletin ALERT SummaryNumber: 777-55A0018Original Issue: July 27, 2011 Revision 1: March 06, 2012 ATA System: 5510 SUBJECT: STABILIZERS - Horizontal Stabilizer - Pivot Pin - Inspection, Rework, and Replacement
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 gives instructions to replace the existing horizontal stabilizer pivot pins with new or reworked pivot pins that have improved resistance to corrosion. If the work given in this service bulletin is not done, horizontal stabilizer pivot pins with corrosion could eventually crack and fracture. A fractured horizontal stabilizer pivot pin may cause excessive horizontal stabilizer freeplay and structural damage significant enough to result in loss of control of the airplane.
The left and right horizontal stabilizer pivot joints each contain inner and outer pivot pins, along with spacers, washers, and retaining hardware. These parts join the horizontal stabilizer to the section 48 stabilizer support bulkhead at body station 2370.
Boeing has received several reports of horizontal stabilizer pivot pin corrosion damage on the outer diameter chrome surface. One operator sent a corroded pivot pin to Boeing for analysis. Upon close examination, Boeing found micro cracks in the chrome plating of the pivot pin. Some of the micro cracks extended into the base metal.
Accomplishment of this service bulletin will remove the micro-cracking process condition found in existing horizontal stabilizer pivot pins and ensure that the pins are free of corrosion damage that could result in pivot pin fracture.
Boeing Fleet Team Digest (FTD) article 777 FTD 55-10001 is related to this service bulletin.
Boeing Service Related Problem (SRP) 777-SRP-55-0049 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
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ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Paragraph 1.E., ComplianceYesAD Related 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/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 62777-78S) Remove the horizontal stabilizer inner and outer pivot pins. Install new pivot pins that have improved resistance to corrosion. Alternatively, rework and re-install the existing pivot pins or install spare pivot pins that have already been reworked in accordance with this service bulletin. After replacement, do detailed and ultrasonic inspections of the horizontal stabilizer pivot pins. Accomplish all actions in accordance with paragraph 1.E., Compliance.
EFFECTIVITY 777-200, 777-200LR, 777-300, 777-300ER, and 777F airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.
COMPLIANCE Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2011-NM-181-AD, is related to this service bulletin.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspection and replacement procedures given in this service bulletin.
MANPOWER Elapsed HoursTotal Task HoursAirplanes
9.5038.00All airplanes.
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BOEING SERVICE BULLETIN 777-55A0018
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MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
Operator Supplied Materials.
HORIZONTAL STABILIZER
REMOVE THE HORIZONTAL STABILIZER INNER AND OUTER PIVOT JOINT PIVOT PINS. INSTALL NEW PIVOT PINS THAT HAVE REWORK AND RE-INSTALL THE EXISTING PIVOT PINS OR IMPROVED RESISTANCE TO CORROSION. ALTERNATIVELY, RIGHT SIDE SIMILAR) (LEFT SIDE SHOWN ineD
INSTALL SPARE PIVOT PINS THAT HAVE ALREADY BEEN
REWORKED IN ACCORDANCE WITH THIS SERVICE BULLETIN. DO AFTER REPLACEMENT INSPECTIONS OF THE HORIZONTAL STABILIZER PIVOT PINS. ACCOMPLISH ALL 2043045 ACTIONS IN ACCORDANCE WITH PARAGRAPH 1.E., COMPLIANCE.
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