Boeing Special Attention Service Bulletin 767-25-0539: Revision 1, text

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Commercial Airplanes 767 Service Bulletin

SPECIAL ATTENTION Number: 767-25-0539 Original Issue: January 09, 2014 Revision 1: July 17, 2018 ATA System: 2511 SUBJECT: EQUIPMENT / FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's Seat - Manual Override Cable Inspection and Adjustment 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:

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: January 09, 2014 767-25-0539Revision 1: July 17, 2018 1 of 26

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Original Issue: January 09, 2014 767-25-0539Revision 1: July 17, 2018 2 of 26 BOEING SERVICE BULLETIN 767-25-0539

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Table of Contents

Revision Transmittal Sheet5

Summary7

1. PLANNING INFORMATION11

A. Effectivity11

1. Airplanes11

2. Spares Affected13

B. Concurrent Requirements14

C. Reason15

D. Description16

E. Compliance16

F. Approval16

G. Manpower17

H. Weight and Balance Changes17

I. Electrical Load Data17

J. References18

1. Existing Data:18

2. Data Supplied with this Service Bulletin:18

3. Installation Drawings Used in the Preparation of this Service Bulletin:18

K. Publications Affected18

L. Interchangeability and Intermixability of Parts18

M. Software Accomplishment Summary18

2. MATERIAL INFORMATION19

A. Material - Price and Availability19

B. Industry Support Information19

C. Parts Necessary for Each Airplane19

1. Kits/Parts19

2. Parts and Materials Supplied by the Operator19

3. Parts Modified and Reidentified19

4. Parts Removed and Not Replaced19

D. Parts Necessary to Change Spares19

E. Special Tooling - Price and Availability19

F. Special Tooling Necessary to do this Service Bulletin19

3. ACCOMPLISHMENT INSTRUCTIONS21

A. GENERAL INFORMATION21

B. WORK INSTRUCTIONS22

FIGURE 1: FLIGHT COMPARTMENT SEATS - SEAT IDENTIFICATION25

Original Issue: January 09, 2014 767-25-0539Revision 1: July 17, 2018 3 of 26 BOEING SERVICE BULLETIN 767-25-0539

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Original Issue: January 09, 2014 767-25-0539Revision 1: July 17, 2018 4 of 26 BOEING SERVICE BULLETIN 767-25-0539

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Commercial Airplanes 767 Service Bulletin

SPECIAL ATTENTION Revision Transmittal SheetNumber: 767-25-0539Original Issue: January 09, 2014 Revision 1: July 17, 2018 ATA System: 2511 SUBJECT: EQUIPMENT / FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's Seat - Manual Override Cable Inspection and Adjustment 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.

Airplane variable numbers VR260, VR401, VT033, VT551, VT552, VT558 thru VT610 were added to Group 1 of this service bulletin effectivity.

Effects of this Revision on airplanes on which the Original Issue was previously done:

None.

REASON FOR REVISION This revision is sent to add delivered 767 airplanes that had Ipeco powered Captain's and First Officer's seats installed during production or in retrofit, and all future deliveries with Ipeco powered Captain's and First Officer's seats to the effectivity of this service bulletin. This revision also adds instructions to identify specific Captain's and First Officer's seat serial numbers for seat part numbers 3A258-0041-01-1 and 3A258-0042-01-1. And, seat part numbers 3A258-0041-01-2 and 3A258-0042-01-2 were added to the Serviceable Seat definition. Airplane variable number VR260 is added because it is applicable to Boeing service bulletin 767-25-0546, and airplane variable numbers VT551 and VT552 are added because they are applicable to Boeing service bulletin 767-25-0556, the two of which install Ipeco powered Captain's and First Officer's seats which are subsequently affected by this service bulletin. Airplane variable number VR401 is added because it was not included in the Original Issue of this service bulletin. Also, Captain's seat part number 3A090-0077-01-1 and First Officer's seat part number 3A090-0078-01-1, the two of which are specified in Ipeco SB 210-25-04, are added to this service bulletin. First Officer's seat part numbers 3A090-0078-03-1 and 3A090-0078-05-1, the two of which were reidentified back to First Officer's seat part number 3A090-0078-02-1, are removed from this service bulletin.

These sections were changed:

1. Summary, Background: Changed information.

2. Summary, Action: Changed instructions and information.

Original Issue: January 09, 2014 767-25-0539Revision 1: July 17, 2018 5 of 26

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3. Summary, Effectivity: Changed information.

4. Summary, Compliance: Changed information.

5. Summary, Illustration: Changed.

6. Paragraph 1.A.1., Airplanes: Changed information. Added airplanes to Group 1.

7. Paragraph 1.A.2., Spares Affected: Added seat part numbers.

8. Paragraph 1.B., Concurrent Requirements: Changed information.

9. Paragraph 1.C., Reason: Changed information. Added Revision 1 information.

10. Paragraph 1.D., Description: Changed instructions and information. Added Revision 1 information.

11. Paragraph 1.E., Compliance: Added information.

12. Paragraph 1.G., Manpower: Changed footnote (c).

13. Paragraph 3.A., General Information: Added and deleted notes.

14. Paragraph 3.B., Work Instructions: Added steps for seat identification. Added part numbers. Changed instructions.

15. Figure 1: Changed title. Changed footnote (a) of the step table.

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 January 09, 2014Original Issue:

July 17, 2018Revision 1:

Original Issue: January 09, 2014 767-25-0539Revision 1: July 17, 2018 6 of 26 BOEING SERVICE BULLETIN 767-25-0539

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Commercial Airplanes 767 Service Bulletin

SPECIAL ATTENTION SummaryNumber: 767-25-0539Original Issue: January 09, 2014 Revision 1: July 17, 2018 ATA System: 2511 SUBJECT: EQUIPMENT / FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's Seat - Manual Override Cable Inspection and Adjustment BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS DOCUMENT IMMEDIATELY.

CONCURRENT REQUIREMENTS Refer to Paragraph 1.B., Concurrent Requirements.

BACKGROUND Accomplishment of this service bulletin will make sure that Captain's and First Officer's seats do not have un-commanded movement due to an improperly adjusted cable for the manual release lever. If this service bulletin is not done, the manual control lever cable could be incorrectly adjusted which could result in its clutch mechanism (dogs) not engaging correctly and cause an un-commanded seat movement. An un-commanded seat movement during a critical part of a flight, such as take-off or landing could cause a flight control obstruction or unintended flight control input which could result in the loss of the ability to control the airplane.

A 747 operator reported that during a takeoff, the First Officer's seat unlocked from it's seat tracks and moved aft. The first officer was unable to control the airplane and the captain took over the controls to avoid a rejected takeoff. The unlocking of the seat from the seat tracks was caused by actuator damage which was a result of incorrect adjustment of the seats manual release lever cable, allowing the clutch dogs to only partially engage.

Because 767 airplanes use the same seats in the flight compartment, Boeing has issued this service bulletin to do a one time inspection, and if necessary an adjustment, in accordance with an Ipeco Service Bulletin. Three Ipeco Service Bulletins have been issued to account for different part number seats installed. Because of in-service seat interchangeability, operators are told to inspect the part number of the seats installed and use the applicable Ipeco Service Bulletin.

This service bulletin gives instructions to find the identification of the installed Captain's and First Officer's seats and to do an inspection, and if necessary an adjustment, of each seat's fore/aft manual control lever and vertical manual control lever in accordance with an Ipeco Service Bulletin. The inspection, and if necessary the adjustment of the manual control levers of the Captain's and First Officer's seats, will make sure that the seats do not have un-commanded seat movement due to improperly adjusted fore/aft and vertical manual control levers.

Boeing Service Related Problem (SRP) 767-SRP-25-0320 is related to this service bulletin.

Boeing Fleet Team Digest (FTD) 767 FTD 25-13003 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 AffectedYesSpares 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 AffectedNoPublications 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 NoOperator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION Get access to the flight compartment. Find the part number of the installed Captain's and First Officer's seats.

If specific seat part numbers are found, find the serial number of those seats. For specific part numbers and serial numbers of Captain's and First Officer's seats do a Detailed Inspection of the fore/aft manual control lever and the vertical manual control lever on each seat for looseness in accordance with the applicable Ipeco Service Bulletin. If a control lever inspection is not within limits, remove the seat and install a serviceable seat. Do an operational test of each adjusted seat.

NOTE: A serviceable Captain's seat in this service bulletin is defined as seat part number 3A258-0041-01-2, or is a Captain's seat that has done the inspections and all applicable corrective actions in accordance with the applicable Ipeco service bulletin. A serviceable First Officer's seat in this service bulletin is defined as seat part number 3A258-0042-01-2, or is a First Officer's seat that has done the inspections and all applicable corrective actions in accordance with the applicable Ipeco service bulletin.

EFFECTIVITY 767-200/300/300F/400ER Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

Refer to Paragraph 1.A.2., Spares Affected, for the list of affected components.

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.

Boeing recommends that the inspection, and all applicable corrective actions, given in this service bulletin be done within 72 months after the Original Issue date of this service bulletin.

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INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspection and adjustment given in this service bulletin.

MANPOWER Refer to Paragraph 1.G., Manpower.

MATERIAL INFORMATION None.

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BOEING SERVICE BULLETIN 767-25-0539

FIRST OFFICER'S FIND THE PART NUMBER OF THE INSTALLED

SEAT CAPTAIN'S AND FIRST OFFICER'S SEATS

FIND THE SERIAL NUMBER OF SPECIFIC

SEAT PART NUMBERS

DO A DETAILED INSPECTION OF THE

VERTICAL MANUAL CONTROL LEVER

FOR LOOSENESS IN ACCORDANCE

WITH THE APPLICABLE IPECO SERVICE BULLETIN.

IF A CONTROL LEVER INSPECTION IS

NOT WITHIN LIMITS, REMOVE THE

SEAT AND INSTALL A SERVICEABLE SEAT. TEST.

CAPTAIN'S SEAT

FIRST OFFICER'S SEAT OPPOSITE (TYPICAL) (RIGHT SIDE VIEW) FWD

CAPTAIN'S SEAT

FIRST OFFICER'S SEAT OPPOSITE (TYPICAL (LEFT SIDE VIEW

DO A DETAILED INSPECTION OF THE

FORE/AFT MANUAL CONTROL LEVER FOR

LOOSENESS IN ACCORDANCE WITH THE APPLICABLE IPECO SERVICE BULLETIN. IF

A CONTROL LEVER INSPECTION IS NOT

WITHIN LIMITS, REMOVE THE SEAT AND INSTALL A SERVICEABLE SEAT. TEST.

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Commercial Airplanes 767 Service Bulletin

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 applicable to 767-200/300/300F/400ER Airplanes with Ipeco part number series 3A090 and 3A258 Captain's and First Officer's powered seats, line numbers 161 and on, in 1 Group. The Variable Numbers and Group information for the applicable airplanes is given below.

NOTE: The Variable Number table below includes all affected airplanes up to Line Number 1187.

Affected airplanes after Line Number 1187 will be added to the service bulletin's MyBoeingFleet.com (MBF) "get effectivity" result when they are added to the MBF Fleet Profile Page.

DESCRIPTIONCONFIGURATIONGROUP 767-200/300/300F/400ER Airplanes equipped with powered Ipeco Captain's and First Officer's seats part number series 3A090 and 3A258.

-1 Airplane Models:

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GroupVariable Number 1VE141 - VE152 1VF071 - VF072 1VF091 - VF093 1VF161 - VF162 1VF251 1VK081 - VK113 1VK131 - VK133 1VK145 - VK148 1VK161 - VK164 1VK171 1VL806 - VL807 1VL871 - VL873 1VL891 - VL900 1VN151 - VN158 1VN163 - VN168 1VN191 - VN198 1VN211 - VN212 1VN221 - VN225 1VN231 - VN234 1VN301 - VN314 1VN671 - VN672 1VN681 - VN691 1VN931 - VN936 1VQ001 - VQ021 1VQ071 - VQ086 1VR051 - VR060 1VR084 1VR086 - VR089 1VR106 - VR109 1VR251 1VR260 1VR293 - VR294 1VR401 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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