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Commercial Airplanes 767 Service Bulletin ALERT Number: 767-53A0261 Original Issue: August 12, 2014 ATA System: 5300 5380 5530 SUBJECT: FUSELAGE - Section 48 - Vertical Stabilizer Attachment Barrel Nut Inspection and Replacement 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 © 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Unpublished Work.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 12, 2014 767-53A0261 1 of 40
3.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 2 of 40 BOEING SERVICE BULLETIN 767-53A0261
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BLANK PAGE
Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected ........................................ 1 0 B. Concurrent Requirements ...................................... 1 0 C. Reason ................................................ 1 1 D. Description .............................................. 1 1 E. Compliance .............................................. 1 2 F. Approval ............................................... 1 4 G. Manpower .............................................. 1 4 H. Weight and Balance Changes .................................... 1 5 I. Electrical Load Data ......................................... 1 5 J. References .............................................. 1 5
1. Existing Data: ......................................... 1 5
2. Data Supplied with this Service Bulletin: ........................... 1 6
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 6 K. Publications Affected ........................................ 1 6 L. Interchangeability and Intermixability of Parts ........................... 1 6 M. Software Accomplishment Summary ................................ 1 6
2. MATERIAL INFORMATION ........................................ 1 7 A. Material - Price and Availability ................................... 1 7 B. Industry Support Information .................................... 1 7 C. Parts Necessary for Each Airplane ................................. 1 7
1. Kits/Parts: ........................................... 1 7
2. Parts and Materials Supplied by the Operator: ........................ 1 8
3. Parts Modified and Reidentified: ............................... 1 9
4. Parts Removed and Not Replaced: .............................. 1 9 D. Parts Necessary to Change Spares ................................. 1 9 E. Special Tooling - Price and Availability ............................... 1 9 F. Special Tooling Necessary to do this Service Bulletin ....................... 1 9
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 1 A. GENERAL INFORMATION ..................................... 2 1 B. WORK INSTRUCTIONS ....................................... 2 3 FIGURE 1: ACCESS ............................................ 2 6 FIGURE 2: INTERNAL AND EXTERNAL DETAILED INSPECTION ................... 2 7 FIGURE 3: TORQUE CHECK ....................................... 2 9 FIGURE 4: MAGNETIC CHECK ...................................... 3 1 FIGURE 5: BARREL NUT REPLACEMENT ................................ 3 3 APPENDIX A: COMPLIANCE TASKS AND COMPLIANCE TIMES LOGIC DIAGRAM ........... 3 9 APPENDIX B: INPUT SURVEY ........................................ 4 0 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 3 of 40 BOEING SERVICE BULLETIN 767-53A0261
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 4 of 40 BOEING SERVICE BULLETIN 767-53A0261
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BLANK PAGE
Commercial Airplanes 767 Service Bulletin ALERT SummaryNumber: 767-53A0261Original Issue: August 12, 2014 ATA System: 5300 5380 5530 SUBJECT: FUSELAGE - Section 48 - Vertical Stabilizer Attachment Barrel Nut Inspection 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 Accomplishment of this service bulletin will make sure H-11 steel barrel nuts that attach the vertical stabilizer to body section 48 are found and replaced. If H-11 steel barrel nuts are not found and replaced, galvanic corrosion can occur if moisture is present. Corroded H-11 steel barrel nuts could fail due to stress corrosion cracking which can cause departure of the vertical stabilizer and the loss of rudder control.
During a C-check, an operator reported finding of H-11 steel barrel nuts installed on an airplane not included in the effectivity of the Service Bulletin SB 767-53A0085. The SB 767-53A0085 provides instructions to inspect and replace H-11 steel barrel nuts at the Vertical Fin, Section 48, attachment points with Inconel barrel nuts.
Further investigation has discovered that airplanes with line numbers 575 to 681, allowed an optional installation of H-11 steel or Inconel barrel nuts at the 16 vertical fin attachment points.
Production incorporation of only Inconel barrel nuts begins with line number 682 and on.
Boeing Service Related Problem (SRP) 767-SRP-53-0453 is related to this service bulletin.
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 AffectedNoSpares Affected Paragraph 1.E., Compliance and Paragraph
1.F., Approval YesAD Related Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 5 of 40
ReferenceAffectedPlanning Data 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 Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION Get internal and external access to Section 48 and to the area of the vertical fin attachment joint. Do the following steps for each of the 16 attachment points. Do Internal and External Detailed Inspection of the barrel nut holes and sealant for cracked/damaged sealant, corrosion, or cracked/broken barrel nut.
If cracked/damaged sealant, corrosion, or cracked/broken barrel nut is found, consider the barrel nut to be corroded. Replace the barrel nut with a new Inconel barrel nut.
If no cracked/damaged sealant, corrosion, or cracked/broken barrel nut is found, do a Torque Check on each affected vertical fin attachment bolt.
If the Torque Check finds that a bolt can be turned, consider the barrel nut to be damaged. Replace the barrel nut with a new Inconel barrel nut.
If the Torque Check does not find that a bolt can be turned, put the airplane back to a serviceable condition.
Continue to do Internal and External Detailed Inspection, and Torque Check on each affected vertical fin attachment bolt unless the correct nut type is installed.
As an alternative, do the Magnetic Check to identify H-11 steel barrel nuts. If H-11 steel barrel nut is found, replace the barrel nut with a new Inconel barrel nut. If no H-11 steel barrel nut is found, no further action is required.
Put the airplane back to a serviceable condition.
EFFECTIVITY 767-200/-300/-300F Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.
COMPLIANCE Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of September 11, 1997. Please refer to Paragraph 2.B., Industry Support Information. The warranty remedies will expire eight years from the original issue date of this service bulletin.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
Operators are encouraged to complete the survey provided in the Appendix of this service bulletin to help Boeing predict the quantity and timing of the Boeing Supplied Kits/Parts.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 7 of 40 BOEING SERVICE BULLETIN 767-53A0261
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BOEING SERVICE BULLETIN 767-53A0261
ALERT ALERT
STRINGER BODY/FIN REAR SPAR
FITTING TENSION ACCESS HOLE FITTING TENSION
FRONT SPAR
TENSION
FITTING
VERTICAL FIN STA 1725 STA STA 1702 STA 16/8 EWD VERTICAL FIN ATTACH FASTENERS 1654 DO INTERNAL AND EXTERNAL (16 LOCATIONS) DETAILED INSPECTIONS AND TORQUE
CHECK TO FIND CORRODED OR DAMAGED H-11 STEEL BARREL NUTS.
IF CORRODED OR DAMAGED BARREL
NUTS ARE FOUND, REPLACE THEM WITH INCONEL BARREL NUTS.
2307584 Original Issue: August 12, 2014 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 767-53A0261 Work - See page 1 for details. 8 of 40
Commercial Airplanes 767 Service Bulletin ALERT Number: 767-53A0261 Original Issue: August 12, 2014 ATA System: 5300 5380 5530 SUBJECT: FUSELAGE - Section 48 - Vertical Stabilizer Attachment Barrel Nut Inspection 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.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes Refer to Service Bulletin Index D624T001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
This service bulletin is for the airplanes shown below.
DESCRIPTIONCONFIGURATIONGROUP 767-200/-300/-300F Airplanes. Line number 575 through 681, which have optional H-11 steel or Inconel barrel nuts installed at the vertical stabilizer attachment points.
-1 Airplane Models:
767-200, 767-300, 767-300F GroupVariable Number 1VF182 - VF184 1VF251 1VK015 - VK016 1VK113 1VK144 - VK148 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 9 of 40
GroupVariable Number 1VK181 1VK186 1VL754 - VL755 1VL806 - VL807 1VL871 - VL873 1VL891 - VL900 1VL911 - VL914 1VL931 - VL932 1VL941 1VN096 - VN099 1VN136 - VN137 1VN174 1VN197 - VN198 1VN225 1VN265 - VN276 1VN292 - VN293 1VN388 1VN424 - VN427 1VN436 1VN637 - VN638 1VN657 - VN658 1VN932 - VN936 1VN953 1VN966 - VN972 1VW701 - VW721 1VW851
2. Spares Affected None.
B. Concurrent Requirements None.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 10 of 40 BOEING SERVICE BULLETIN 767-53A0261
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C. Reason Accomplishment of this service bulletin will make sure H-11 steel barrel nuts that attach the vertical stabilizer to body section 48 are found and replaced. If H-11 steel barrel nuts are not found and replaced, galvanic corrosion can occur if moisture is present. Corroded H-11 steel barrel nuts could fail due to stress corrosion cracking which can cause departure of the vertical stabilizer and the loss of rudder control.
During a C-check, an operator reported finding of H-11 steel barrel nuts installed on an airplane not included in the effectivity of the Service Bulletin SB 767-53A0085. The SB 767-53A0085 provides instructions to inspect and replace H-11 steel barrel nuts at the Vertical Fin, Section 48, attachment points with Inconel barrel nuts. Further investigation has discovered that airplanes with line numbers 575 to 681, allowed an optional installation of H-11 steel or Inconel barrel nuts at the 16 vertical fin attachment points.
Production incorporation of only Inconel barrel nuts begins with line number 682 and on.
Boeing Service Related Problem (SRP) 767-SRP-53-0453 is related to this service bulletin.
D. Description Get internal and external access to Section 48 and to the area of the vertical fin attachment joint. Do the following steps for each of the 16 attachment points. Do Internal and External Detailed Inspection of the barrel nut holes and sealant for cracked/damaged sealant, corrosion, or cracked/broken barrel nut.
If cracked/damaged sealant, corrosion, or cracked/broken barrel nut is found, consider the barrel nut to be corroded. Replace the barrel nut with a new Inconel barrel nut.
If no cracked/damaged sealant, corrosion, or cracked/broken barrel nut is found, do a Torque Check on each affected vertical fin attachment bolt.
If the Torque Check finds that a bolt can be turned, consider the barrel nut to be damaged. Replace the barrel nut with a new Inconel barrel nut.
If the Torque Check does not find that a bolt can be turned, put the airplane back to a serviceable condition. Continue to do Internal and External Detailed Inspection, and Torque Check on each affected vertical fin attachment bolt unless the correct nut type is installed.
As an alternative, do the Magnetic Check to identify H-11 steel barrel nuts. If H-11 steel barrel nut is found, replace the barrel nut with a new Inconel barrel nut. If no H-11 steel barrel nut is found, no further action is required.
Put the airplane back to a serviceable condition.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones ZoneModel 311, 312, 313, 314, 322, 323, 324, 325767-200, 767-300, 767-300F Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 11 of 40 BOEING SERVICE BULLETIN 767-53A0261
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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.
1. Compliance Time Exceptions:
If a vertical stabilizer attachment barrel nut has been inspected and no H-11 steel barrel nut found, and/or replaced, and meets 1 of the requirements shown below, then no further action is required at that attachment point location. The inspections and/or H-11 steel barrel nut replacement of the non-repaired attachment points do not change.
a. Previously installed H-11 barrel nut was replaced with drawing configuration barrel nut made from alternate material to H-11 steel.
b. Previously installed H-11 barrel nut was replaced with barrel nut approved by FAA or by a Boeing Company Authorized Representative. The replacement barrel nut is made from alternate material to H-11 steel.
Do the required actions in accordance with Paragraph 3. Accomplishment Instructions.
When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When more than one ACTION is given for a CONDITION number or an OPTION number, do all of the ACTION numbers for that CONDITION number or OPTION number.
A logic diagram showing compliance tasks and compliance times is included as an aid in APPENDIX A.
Table 1: Vertical Stabilizer Attachment Barrel Nut Inspection Repeat Interval (Not to Exceed) Compliance Time (Whichever Occurs Later) ActionCondition -Within 36 months after the last Torque Check inspection in accordance with 767 MPD Section 2, Task 53-734-00.
Within 24 months after the Original Issue date of this Service Bulletin.
OPTION 1:
Do PART 2: INTERNAL
AND EXTERNAL DE- TAILED INSPECTION of the barrel nut holes and sealant for signs of corrosion.
Do PART 3: TORQUE CHECK for any loose bolt
(e.g., the bolt can be turned).
All Airplanes.
(a) OPTION 2:
Do PART 4: MAGNETIC CHECK to identify H-11 steel barrel nuts.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: August 12, 2014 767-53A0261 12 of 40 BOEING SERVICE BULLETIN 767-53A0261