Boeing Special Attention Service Bulletin 777-25-0607: Revision 2, text

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Commercial Airplanes 777 Service Bulletin

SPECIAL ATTENTION Number: 777-25-0607 Original Issue: January 09, 2014 Revision 2: January 27, 2023 ATA System: 2511 SUBJECT: EQUIPMENT / FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's Seat - Manual Override Cable Inspection and Adjustment 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:

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 777-25-0607Revision 2: January 27, 2023 1 of 37

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Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 2 of 37 BOEING SERVICE BULLETIN 777-25-0607

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Table of Contents

Revision Transmittal Sheet5

Summary7

1. PLANNING INFORMATION11

A. Effectivity11

1. Airplanes11

2. Spares Affected14

B. Concurrent Requirements14

C. Reason15

D. Description16

E. Compliance16

F. Approval17

G. Manpower17

H. Weight and Balance Changes18

I. Electrical Load Data18

J. References18

1. Existing Data:18

2. Data Supplied with this Service Bulletin:19

3. Installation Drawings Used in the Preparation of this Service Bulletin:19

K. Publications Affected19

L. Interchangeability and Intermixability of Parts19

M. Software Accomplishment Summary19

2. MATERIAL INFORMATION21

A. Material - Price and Availability21

B. Industry Support Information21

C. Parts Necessary for Each Airplane21

1. Kits/Parts21

2. Parts and Materials Supplied by the Operator21

3. Parts Modified and Reidentified21

4. Parts Removed and Not Replaced21

D. Parts Necessary to Change Spares21

E. Special Tooling - Price and Availability21

F. Special Tooling Necessary to do this Service Bulletin21

3. ACCOMPLISHMENT INSTRUCTIONS23

A. GENERAL INFORMATION23

B. WORK INSTRUCTIONS24

FIGURE 1: FLIGHT COMPARTMENT SEATS - SEAT IDENTIFICATION36

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 3 of 37 BOEING SERVICE BULLETIN 777-25-0607

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Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 4 of 37 BOEING SERVICE BULLETIN 777-25-0607

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Commercial Airplanes 777 Service Bulletin

SPECIAL ATTENTION Revision Transmittal SheetNumber: 777-25-0607Original Issue: January 09, 2014 Revision 2: January 27, 2023 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 Federal Aviation Administration (FAA) Airworthiness Directive AD 2019-16-05 is related to this service bulletin.

The Federal Aviation Administration (FAA) will possibly release an additional 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 the Original Issue or Revision 1 was previously done:

ActionConditionGroup Do 'Captain's and First Officer's Seats (with '1Z' part numbers suffix) Inspection and Manual Override Cable Adjustment' in Work Instructions.

Airplanes that have inspected and have done all applicable corrective actions for the installed Captain's and First Officer's seats that were identified in the Original Issue and Revision 1 of this service bulletin.

Group 1, Configuration 2

REASON FOR REVISION This revision is sent to add new requirements for Ipeco seat part numbers 3A258-0041-01-1Z and 3A258-0042-01-1Z ('1Z' part number suffix). This revision is also sent to list newer issue numbers for each concurrent supplier service bulletin, and to add conditional information for Ipeco seats that used specific revisions of Ipeco Component Maintenance Manuals (CMMs) to do manual override cable maintenance.

These sections were changed:

1. Summary, Background; changed information, added Service Related Problem (SRP) reference, and changed the AD related information in the planning table.

2. Summary, Action; added applicability, changed and added information, and changed the note.

3. Summary, Compliance; changed information and added AD information.

4. Summary, Illustration; changed and added information.

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 5 of 37

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5. Paragraph 1.A.1., Airplanes; added Configurations for Group 1, changed and added information, listed specific line numbers and line number ranges, and replaced the note.

6. Paragraph 1.A.2., Spares Affected; added part numbers.

7. Paragraph 1.B., Concurrent Requirements; added applicability, changed to list newer issue numbers of each supplier service bulletin, and added part numbers.

8. Paragraph 1.C., Reason; changed information, added SRP reference, and added Revision 2 information.

9. Paragraph 1.D., Description; added applicability, changed and added information, and added Revision 2 information.

10. Paragraph 1.E., Compliance; added and changed information, and added applicability.

11. Paragraph 1.F., Approval; changed information and added Alternative Method Of Compliance (AMOC) paragraph.

12. Paragraph 1.G., Manpower; added applicability, added a footnote and changed information.

13. Paragraph 1.J.1., Existing Data; added references.

14. Paragraph 2.C.2., Parts and Materials Supplied by the Operator; changed information.

15. Paragraph 3.B., Work Instructions;

– added Ipeco and Boeing seat part numbers.

– added Ipeco CMMs and listed newer issue numbers for each Ipeco service bulletin.

– added conditional information for manual override cable maintenance history.

– changed to add 'Captain's and First Officer's Seats (without '1Z' part numbers suffix) Inspection and Manual Override Cable Adjustment' heading and added 'Captain's and First Officer's Seats (with '1Z' part numbers suffix) Inspection and Manual Override Cable Adjustment' work instructions.

– changed the 'serviceable seat' definition for part number series 3A201 and 3A258 seats.

– changed an instruction, corrected an instruction, added information, and added applicability.

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:

January 27, 2023Revision 2:

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 6 of 37 BOEING SERVICE BULLETIN 777-25-0607

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Commercial Airplanes 777 Service Bulletin

SPECIAL ATTENTION SummaryNumber: 777-25-0607Original Issue: January 09, 2014 Revision 2: January 27, 2023 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 its 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 777 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. Two 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 affected seats' 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) 777-SRP-25-0320 and 777-SRP-25-0418 are related to this service bulletin.

Boeing Fleet Team Digest (FTD) 777 FTD 25-13006 is related to this service bulletin.

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 7 of 37

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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.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 (PRR 61777-278R) 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, and find their manual override cable maintenance history. For each affected Captain's and First Officer's seat, 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 seat in this service bulletin is defined as part number 3A258-0041-01-2 (Captain's) and part number 3A258-0042-01-2 (First Officer's), or it is a seat that has done the inspections and allapplicable corrective actions in accordance with the applicable Ipeco service bulletin. Or, the manual override cable maintenance has been completed on the seat in accordance with the Ipeco Component Maintenance Manual (CMM) 25-10-87, Revision 28 or later, or in accordance with Ipeco CMM 25-11-38, Revision 21 or later.

EFFECTIVITY 777-200/200LR/300/300ER/777F 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 Federal Aviation Administration (FAA) Airworthiness Directive AD 2019-16-05 is related to this service bulletin.

The effective date of AD 2019-16-05 is October 8, 2019.

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 8 of 37 BOEING SERVICE BULLETIN 777-25-0607

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Refer to Paragraph 1.E., Compliance.

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 777-25-0607

FIND THE PART NUMBER OF THE INSTALLED FIRST OFFICER'S CAPTAIN'S AND FIRST OFFICER'S SEATS.

SEAT FIND THE SERIAL NUMBER OF SPECIFIC

SEAT PART NUMBERS, AND FIND THEIR MANUAL OVERRIDE CÁBLE MAINTENANCE HISTORY.

FOR EACH AFFECTED CAPTAIN'S AND

FIRST OFFICER'S SEAT, DO A DETAILED

INSPECTION OF TH VERTICAL MANUAL

CONTR LEVER FOR LOOSENESS IN ACCOR + THE APPLICABLE

IPECO LETIN

IF A CONTRO LEVER INSPECTION IS NOT

WITHIN LIMITS REMOVE THE SEAT AND INSTALL A SERVICEABLE SEAT. DO AN

OPERATIONAL TEST OF EACH ADJUSTED SEAT.

FWD

CAPTAIN'S SEAT IS SHOWN

FIRST OFFICER'S SEAT IS OPPOSITE (LEFT SIDE VIEW) FWD

CAPTAIN'S SEAT IS SHOWN,

FIRST OFFICER'S SEAT IS OPPOSITE (RIGHT SIDE VIEW)

FOR EACH AFFECTED CAPTAIN'S AND

FIRST OFFICER'S SEAT, 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

DPERATIONAL YES OF EACH ADUSTED SEAT.

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Commercial Airplanes 777 Service Bulletin

1. PLANNING INFORMATION A. Effectivity

1. Airplanes Refer to Service Bulletin Index D624W001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.

This bulletin is applicable to 777-200, 777-200LR, 777-300, 777-300ER, 777F Airplane(s), line number(s) 1-1566, 1568-1573, 1575-1580, 1582-1586, 1588-1604, 1606-1610, 1612-1614, 1616-1619, 1621-1623, 1625-1628, 1630-1632, 1634-1637, 1639-1641, 1643-1646, 1648-1650, 1652-1655, 1657-1658, 1660-1667, 1669, 1671, 1673, 1675-1676, 1678-1679, 1681, 1683-1684, 1686-1687, 1689-1715, 1717-1722, 1724-1727, 1729-1736, 1738-1739, 1741-9999 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.

The Variable Numbers and Group information for the applicable airplanes is given below. Refer to PRR 61777-278R for data about this change.

NOTE: The Variable Number table below includes affected airplanes available as of the issue date of this bulletin. Affected airplane Variable Numbers added to MyBoeingFleet.com after the issue date of this bulletin will be shown using the Maintenance Performance Toolbox EFFECTIVITY search function result.

Original Issue: January 09, 2014 777-25-0607Revision 2: January 27, 2023 11 of 37

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DESCRIPTIONCONFIGURATIONGROUP 777-200/200LR/300/300ER/777F Airplanes equipped with powered Ipeco Captain's and First Officer's seats part number series 3A201 and 3A258.

-1 Airplanes that have not done the Original Issue or Revision 1 of this service bulletin.

1 Airplanes that have done the Original Issue or Revision 1 of this service bulletin.

2 Airplane Models:

777-200, 777-200LR, 777-300, 777-300ER, 777F GroupVariable Number 1WA001 - WA017 1WA076 - WA080 1WA086 - WA093 1WA101 - WA104 1WA116 - WA119 1WA131 - WA137 1WA171 - WA175 1WA196 - WA198 1WA206 - WA212 1WA221 - WA223 1WA231 - WA232 1WA241 - WA250 1WA261 - WA266 1WA281 - WA283 1WA301 - WA304 1WB001 - WB021 1WB031 - WB046 1WB051 - WB088 1WB101 - WB106 1WB121 - WB125 1WB131 - WB148 1WB151 - WB155 GroupVariable Number 1WB161 - WB177 1WB181 - WB194 1WB201 - WB215 1WB231 - WB247 1WB271 - WB273 1WB276 - WB286 1WB291 - WB302 1WB306 - WB307 1WB311 - WB337 1WB341 - WB342 1WB366 - WB368 1WB371 - WB388 1WB406 1WB411 - WB413 1WB416 - WB439 1WB446 - WB453 1WB476 1WB481 - WB484 1WB501 - WB512 1WB531 - WB537 1WB551 - WB554 1WB591 - WB597 GroupVariable Number 1WB601 - WB606 1WB611 - WB622 1WB631 - WB638 1WB646 - WB649 1WC051 - WC073 1WC101 - WC104 1WC111 - WC120 1WC221 - WC224 1WC241 - WC243 1WC281 - WC290 1WC301 - WC308 1WC361 - WC364 1WC371 - WC374 1WC381 - WC395 1WC441 1WC446 - WC449 1WC456 - WC459 1WC486 - WC493 1WC506 - WC508 1WC521 - WC522 1WC531 - WC536 1WC546 - WC548 Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.

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