# Boeing Special Attention Service Bulletin 767-25-0549: Revision 2

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- Document: [Boeing Special Attention Service Bulletin 767-25-0549](https://openairdocs.org/service-documents/boeing/sb-767-25-0549.md)
- Title as filed: SB-767-25-0549 Rev02
- Pages: 83
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## Text

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### Page 1

Commercial 
Airplanes
767
Service Bulletin
SPECIAL ATTENTION
Number: 767-25-0549
Original Issue: May 09, 2017
Revision 2: January 27, 2023
ATA System: 2511
SUBJECT: EQUIPMENT/FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's
Seat - Horizontal Movement System Inspection and Overhaul
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 © 2017 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Unpublished Work.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: May 09, 2017
767-25-0549Revision 2: January 27, 2023
1 of 83
5.0

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Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
2 of 83
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Table of Contents
Revision Transmittal Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1. PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2. Data Supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3. Installation Drawings Used in the Preparation of this Service Bulletin: . . . . . . . . . . . 35
K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
M. Software Accomplishment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C. Parts Necessary for Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 37
3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 39
3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
FIGURE 1: FLIGHT COMPARTMENT - CAPTAIN'S SEAT TRACKS - FOREIGN OBJECT DEBRIS -
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICER'S SEAT TRACKS - FOREIGN OBJECT DEBRIS
- REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
APPENDIX A: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 1: WORK PACKAGE 1 -
CAPTAIN’S SEAT – DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL
MOVEMENT SYSTEM [Group 1, Configuration 1, 3] . . . . . . . . . . . . . . . . . . . . . 61
APPENDIX B: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 2: WORK PACKAGE 2 -
FIRST OFFICER'S SEAT – DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL
MOVEMENT SYSTEM [Group 1, Configuration 1-2] . . . . . . . . . . . . . . . . . . . . . 64
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
3 of 83
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APPENDIX C: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 3: WORK PACKAGE 3 -
CAPTAIN’S SEAT – HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED INSPECTION
AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM [Group 1, Configuration 2, 4]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
APPENDIX D: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 4: WORK PACKAGE 4 -
FIRST OFFICER'S SEAT – HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED
INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM [Group 1,
Configuration 3-4] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
APPENDIX E: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 5: WORK PACKAGE 5 -
CAPTAIN’S SEAT – REPEAT ACTIONS - CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
[Group 1, Configuration 1, 3, 5, 7] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
APPENDIX F: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 6: WORK PACKAGE 6 -
FIRST OFFICER’S SEAT – REPEAT ACTIONS - CHECK OF THE HORIZONTAL MOVEMENT
SYSTEM [Group 1, Configuration 1-2, 5-6] . . . . . . . . . . . . . . . . . . . . . . . . . . 74
APPENDIX G: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 7: WORK PACKAGE 7 -
CAPTAIN’S SEAT – REPEAT ACTIONS - HORIZONTAL ACTUATOR IDENTIFICATION AND
CHECK OF THE HORIZONTAL MOVEMENT SYSTEM [Group 1, Configuration 2, 4, 6, 8] . 75
APPENDIX H: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 8: WORK PACKAGE 8 -
FIRST OFFICER’S SEAT – REPEAT ACTIONS - HORIZONTAL ACTUATOR IDENTIFICATION
AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM [Group 1, Configuration 3-4, 7-8]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
APPENDIX I: CAPTAIN'S AND FIRST OFFICER'S SEATS, PART NUMBER SERIES 3A258, HORIZONTAL
MOVEMENT SYSTEM - HORIZONTAL ACTUATOR LOCATION [Group 1, Configuration 2-4,
6-8] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
APPENDIX J: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 9: WORK PACKAGE 9 -
FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL
MOVEMENT SYSTEM [Group 1, Configuration 9] . . . . . . . . . . . . . . . . . . . . . . 80
APPENDIX K: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE: TABLE 10: WORK PACKAGE 10
- FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL MOVEMENT
SYSTEM [Group 1, Configuration 9] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
4 of 83
BOEING SERVICE BULLETIN 767-25-0549

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Commercial 
Airplanes
767
Service Bulletin
SPECIAL ATTENTION
Revision Transmittal SheetNumber: 767-25-0549Original Issue: May 09, 2017
Revision 2: January 27, 2023
ATA System: 2511
SUBJECT: EQUIPMENT/FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's
Seat - Horizontal Movement System Inspection and Overhaul
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
Federal Aviation Administration (FAA) Airworthiness Directive AD 2019-14-13 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:
See Paragraph 1.D., Description for more information.
REASON FOR REVISION
This revision is sent to update the revision level of each concurrent supplier service bulletin and to add an option
to install a serviceable seat for Condition 4 of Work Packages 3 and 4. Also, this revision is sent to add Ipeco
First Officer's seat part numbers 3A090-0078-03-1, 3A090-0078-04-1 and 3A090-0078-05-1 that are identified
in Ipeco SB 210-25-05 Issue 5 and Ipeco SB 210-25-06 Issue 5. Compliance tasks for seat part numbers added
in this revision are given a new compliance time for all affected airplanes.
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 Engineering Change Memo reference.
3. Summary, Compliance; added AD information.
4. 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.
5. Paragraph 1.A.2., Spares Affected; added part numbers.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
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6. Paragraph 1.B., Concurrent Requirements; changed to update the newest issue number of each supplier
service bulletin, added part numbers.
7. Paragraph 1.C., Reason; changed information, added SRP reference, and added Revision 2 information.
8. Paragraph 1.D., Description; added Revision 2 information.
9. Paragraph 1.E., Compliance; changed information, added AD information and changed the header of
the compliance time columns. Added Option 1 and 2 for Condition 4 of Work Packages 3 and 4, and
added Tables 9 and 10.
10. Paragraph 1.F., Approval; changed information and added Alternative Method Of Compliance (AMOC)
paragraph.
11. Paragraph 1.G., Manpower; deleted content and removed task relationships of footnote (a) for the
tables for Work Packages 1, 2, 3 and 4, deleted footnotes (a) and (b) and added Figure 1 to table for
Work Package 5, deleted footnotes (a) and (b) and added Figure 2 to table for Work Package 6, deleted
a task from Work Packages 7 and 8, added applicability to tables for Work Packages 5, 6, 7 and 8,
and added tables for Work Packages 9 and 10.
12. Paragraph 1.J.1., Existing Data; added references.
13. Paragraph 2.C.2., Parts and Materials Supplied by the Operator; added applicability, corrected table
column header.
14. Paragraph 2.C.3., Parts Modified and Reidentified; divided information into two tables and added
applicability.
15. Paragraph 3.A., General Information; changed Note 7.
16. Paragraph 3.B., Work Instructions; added Option 1 and Option 2 for Condition 4 of Work Packages 3
and 4, corrected an instruction in Work Package 4, added a note in Work Packages 5 and 6, added
Work Packages 9 and 10, changed footnote (a) in the table for Parts 1, 2, 3, 4, 7 and 8, added First
Officer's seat part numbers to Part 8, added Parts 9 and 10, and added applicability.
17. Appendix A and Appendix B; added flag note table, added flag note (a) to logic diagrams, and corrected
typographical errors.
18. Appendix C and Appendix D; added Option 1 and Option 2 for Condition 4 of Work Packages 3 and 4
to logic diagrams, added flag note (b) to flag note table and logic diagrams, and corrected typographical
errors.
19. Appendix E, Appendix F, Appendix G, Appendix H and Appendix I; added applicability.
20. Appendix J and Appendix K; added.
Vertical lines are put on the left edge of each page, except in format changes, to show the location of all content
changes.
Pages with no vertical lines have no changes.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
6 of 83
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REVISION HISTORY
May 09, 2017Original Issue:
August 10, 2018Revision 1:
January 27, 2023Revision 2:
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
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BOEING SERVICE BULLETIN 767-25-0549

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Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
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BOEING SERVICE BULLETIN 767-25-0549
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Commercial 
Airplanes
767
Service Bulletin
SPECIAL ATTENTION
SummaryNumber: 767-25-0549Original Issue: May 09, 2017
Revision 2: January 27, 2023
ATA System: 2511
SUBJECT: EQUIPMENT/FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's
Seat - Horizontal Movement System Inspection and Overhaul
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 decrease the risk that the Captain's and First Officer's seats will have
un-commanded seat movement because of horizontal actuator shaft failure. If this service bulletin is not done,
the output shaft of the horizontal actuator on the Captain's and First Officer's seat(s) could break and cause an
un-commanded seat movement. Un-commanded seat movement could lead to reduced controllability of the
airplane.
An operator reported the Captain's seat could not be locked in position after the horizontal position of the seat
was adjusted in flight. The seat became unlocked from the track and moved freely forward and aft. Control was
given to the First Officer for approach and landing. An inspection found the horizontal actuator output shaft had
broken. When the horizontal actuator output shaft breaks, pilots cannot prevent seat movement in a forward
and aft direction and cannot lock the seat in position. A broken shaft is the result of high loads that are more
than design limits or from a stalled motor that can occur due to high mechanical resistance to motion during
powered operation of the seat. Any object that can potentially impede seat movement (Foreign Object Debris
(FOD)) in the seat tracks is another condition that can result in a stalled motor and cause the horizontal actuator
output shaft to break.
This service bulletin gives instructions to find the part number and 'amendment' of the horizontal actuator of the
Horizontal Movement System (HMS) of the Captain's and First Officer's seats. If the horizontal actuator has
Artus part number AD8650503 at 'Amendment B' or earlier or Artus part number AD8650502, corrective actions
are necessary by an off-airplane inspection of the seat by the applicable Ipeco service bulletin, where signs of
damage to the HMS make the replacement of the horizontal actuator necessary. If the actuator continues to be
Artus part number AD8650503 at 'Amendment B' or earlier or part number AD8650502, repeat on-airplane
inspections are necessary for the Captain's and First Officer's seats by the applicable Ipeco service bulletin.
Installation of a horizontal actuator, Artus part number AD8650503 at 'Amendment C' or later, will significantly
decrease the risk of a broken horizontal actuator output shaft.
Boeing Service Related Problem (SRP) 767-SRP-25-0306 and 767-SRP-25-0418 are related to this service
bulletin.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
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Boeing Fleet Team Digest 767 FTD 25-12002 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 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 AffectedYesPublications Affected
Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew
Operations Manual and/or FAA Approved Air-
plane 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
YesSpecial Tooling Required
ACTION (PRR B12901-117S, PRR B12900-277R)
Do inspections and checks of the Captain's and First Officer's seats. Do corrective actions.
EFFECTIVITY
767-200/300/300F/400ER Airplane(s) equipped with Ipeco part number series 3A090 and 3A258 Captain's and
First Officer's powered seats. 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 2019-14-13 is related to this service bulletin.
The effective date of AD 2019-14-13 is September 12, 2019.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are not available for the inspection and/or repair procedures given in this service
bulletin.
MANPOWER
Refer to Paragraph 1.G., Manpower.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
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BOEING SERVICE BULLETIN 767-25-0549
MATERIAL INFORMATION
Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
FIRST OFFICER'S
SEAT
CAPTAIN'S
SEAT
DO INSPECTIONS AND CHECKS OF THE
CAPTAIN'S AND FIRST OFFICER'S SEATS.
DO CORRECTIVE ACTIONS.
CAPTAIN'S SEAT  (TYPICAL)  2383470
(FIRST OFFICER'S SEAT OPPOSITE)
Original Issue: May 09, 2017
Revision 2: January 27, 2023  767-25-0549
Export Controlled ECCN: 9E991
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Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
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Commercial 
Airplanes
767
Service Bulletin
SPECIAL ATTENTION
Number: 767-25-0549
Original Issue: May 09, 2017
Revision 2: January 27, 2023
ATA System: 2511
SUBJECT: EQUIPMENT/FURNISHINGS - Flight Compartment Seats - Captain's and First Officer's
Seat - Horizontal Movement System Inspection and Overhaul
BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS DOCUMENT IMMEDIATELY.
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 bulletin is applicable to 767-200, 767-300, 767-300F, 767-400ER Airplane(s), line number(s)
161, 170, 172-173, 175-182, 185, 190, 197, 199, 212, 217-218, 222-223, 229, 233-234, 236, 245,
250, 252, 254, 257, 262-263, 269, 271, 273-276, 279-280, 282, 285, 289-291, 294-295, 297,
300-301, 303, 305-310, 314-315, 323-325, 330, 332, 334, 336-340, 352, 358-359, 375, 377, 379,
381-383, 389-390, 393, 395, 400-401, 406-407, 412, 415-416, 429, 432, 436, 439-440, 455, 458,
463, 465-466, 470-471, 478, 486, 501-502, 508, 510-511, 515-516, 518-520, 522, 525, 530,
537-539, 543-544, 546, 551, 553, 556, 562, 567, 569, 573, 587, 589, 592, 595-597, 599, 604-607,
609, 616, 620, 625, 627, 629, 633, 635, 639, 644-645, 647, 650-651, 656, 658, 661, 668-669, 684,
686, 693, 712, 714, 722, 738, 758, 768-770, 773-774, 781, 787-791, 794-795, 797, 799, 801,
803-805, 807, 809-811, 813-816, 818-821, 823-827, 829-830, 832-833, 835-836, 838-839, 842-843,
845, 847, 849, 851, 855-856, 859-860, 862-886, 888, 895, 902-903, 905, 911-912, 914-915, 917,
919-921, 924-925, 927, 929-932, 935, 937-939, 941-943, 946-947, 950-954, 956-960, 963-964,
966, 969, 971, 974-978, 980-982, 993-1001, 1007, 1009-1010, 1012-1013, 1015, 1017-1019,
1021, 1023, 1027, 1032, 1036, 1039, 1041, 1047, 1050, 1054, 1058, 1060-1064, 1068, 1070-1090,
1093-1097, 1099, 1101, 1103, 1105-1106, 1108, 1110, 1112, 1115, 1118, 1121, 1123, 1125, 1127,
1130, 1133, 1136, 1138, 1140-1142, 1144, 1146, 1148, 1150, 1152-1153, 1155, 1157, 1159, 1161,
1163, 1165, 1167, 1169, 1171, 1173, 1175, 1177, 1179-1180, 1182-1183, 1185-1187, 1189-1191,
1193-1195, 1197-1199, 1201, 1203-1204, 1206, 1208-1209, 1211-1212, 1214-1215, 1217-1218,
1220-1222, 1224-1225, 1227-1229, 1231-1233, 1235, 1237, 1239-1240, 1242, 1244-1245, 1247,
1249, 1251, 1253, 1255-1256, 1258, 1260, 1262-1263, 1265-1266, 1268, 1270, 1272, 1274, 1276,
1278-1279, 1281, 1283, 1285, 1287, 1289, 1291-1292, 1294, 1296, 1298, 1300, 1302, 1304-1305,
1307, 1309, 1311, 1313, 1315, 1317-9999 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.
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### Page 14

NOTE: Airplanes in Group 1 could be in Configuration 1 and Configuration 9, Configuration 2
and Configuration 9, Configuration 5 and Configuration 9, or Configuration 6 and
Configuration 9 at the same time.
The Variable Numbers and Group Information for the applicable airplanes is given below. An
equivalent change is on subsequent production airplanes. Refer to PRR B12900-277R and
B12901-117S 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.
Export Controlled ECCN: 9E991
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### Page 15

DESCRIPTIONCONFIGURATIONGROUP
767-200/300/300F/400ER Airplanes equipped with powered Ipeco
Captain's and First Officer's seats.
-1
Airplanes equipped with Captain's seat, part number series 3A090
and First Officer's seat, part number series 3A090 (not part numbers
3A090-0078-03-1, 3A090-0078-04-1, 3A090-0078-05-1), that have
not done the Original Issue or Revision 1 of this service bulletin.
1
Airplanes equipped with Captain's seat, part number series 3A258
and First Officer's seat, part number series 3A090 (not part numbers
3A090-0078-03-1, 3A090-0078-04-1, 3A090-0078-05-1), that have
not done the Original Issue or Revision 1 of this service bulletin.
2
Airplanes equipped with Captain's seat, part number series 3A090
and First Officer's seat, part number series 3A258 that have not done
the Original Issue or Revision 1 of this service bulletin.
3
Airplanes equipped with Captain's seat, part number series 3A258
and First Officer's seat, part number series 3A258 that have not done
the Original Issue or Revision 1 of this service bulletin.
4
Airplanes equipped with Captain's seat, part number series 3A090
and First Officer's seat, part number series 3A090 (not part numbers
3A090-0078-03-1, 3A090-0078-04-1, 3A090-0078-05-1), that have
done the Original Issue or Revision 1 of this service bulletin.
5
Airplanes equipped with Captain's seat, part number series 3A258
and First Officer's seat, part number series 3A090 (not part numbers
3A090-0078-03-1, 3A090-0078-04-1, 3A090-0078-05-1), that have
done the Original Issue or Revision 1 of this service bulletin.
6
Airplanes equipped with Captain's seat, part number series 3A090
and First Officer's seat, part number series 3A258 that have done
the Original Issue or Revision 1 of this service bulletin.
7
Airplanes equipped with Captain's seat, part number series 3A258
and First Officer's seat, part number series 3A258 that have done
the Original Issue or Revision 1 of this service bulletin.
8
Airplanes equipped with First Officer's seat, part number
3A090-0078-03-1, 3A090-0078-04-1 or 3A090-0078-05-1.
9
Airplane Models:
767-200, 767-300, 767-300F, 767-400ER
GroupVariable Number
1VA713 - VA719
GroupVariable Number
1VE121 - VE126
GroupVariable Number
1VE141 - VE152
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### Page 16

GroupVariable Number
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
GroupVariable Number
1VN931 - VN936
1VQ001 - VQ021
1VQ071 - VQ086
1VR051 - VR060
1VR084
1VR086 - VR089
1VR106 - VR109
1VR251
1VR260
1VR293 - VR308
1VR401
1VR421 - VR423
1VR426
1VS136 - VS137
1VS231
1VS261 - VS263
1VS273 - VS274
1VS336 - VS337
1VS391 - VS392
1VS466 - VS472
1VS546 - VS549
GroupVariable Number
1VS701 - VS736
1VS861
1VS911 - VS912
1VS916
1VS931 - VS933
1VS951 - VS954
1VS961 - VS969
1VS971 - VS975
1VS981 - VS984
1VT021
1VT031 - VT033
1VT501
1VT521 - VT523
1VT531 - VT533
1VT541 - VT546
1VT551 - VT552
1VT556 - VT688
1VT731 - VT735
1VT737
1VW851
--
2. Spares Affected
Examine your spares supply for the parts or components identified below. If any parts or components
are found, refer to Paragraph 3.B., Work Instructions for the recommended action.
Part Number
3A090-0025-01-1
3A090-0026-01-1
3A090-0077-01-1
3A090-0078-01-1
3A090-0077-02-1
3A090-0078-02-1
3A090-0078-03-1
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### Page 17

Part Number
3A090-0078-04-1
3A090-0078-05-1
3A258-0007-01-1
3A258-0008-01-1
3A258-0041-01-1
3A258-0042-01-1
B. Concurrent Requirements
The service bulletin(s) listed below must be done at the same time as this service bulletin:
DescriptionService BulletinCompany
Captain's and First Officer's seat horizontal
movement system inspection and adjust-
ment.
Ipeco SB 098-25-04, Issue 3 (a)(b)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and overhaul.
Ipeco SB 098-25-05, Issue3 or Issue 4 (a)(b)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and adjust-
ment.
Ipeco SB 210-25-05, Issue 4 (c)(d)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and adjust-
ment.
Ipeco SB 210-25-05, Issue 5 (c)(d)(i)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and overhaul.
Ipeco SB 210-25-06, Issue 4 (c)(d)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and overhaul.
Ipeco SB 210-25-06, Issue 5 (c)(d)(i)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and adjust-
ment.
Ipeco SB 258-25-15, Issue 4 or Issue 5 or
Issue 6 (e)(f)
Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and overhaul.
Ipeco SB 258-25-16, Issue 4 or Issue 5 (e)(f)Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and adjust-
ment.
Ipeco SB 258-25-13, Issue 3 or Issue 4 or
Issue 5 (g)(h)
Ipeco Holdings Ltd
Captain's and First Officer's seat horizontal
movement system inspection and overhaul.
Ipeco SB 258-25-14, Issue 4 or Issue 5 (g)(h)Ipeco Holdings Ltd
(a) Applicable to Captain's seat part number 3A090-0025-01-1.
(b) Applicable to First Officer's seat part number 3A090-0026-01-1.
(c) Applicable to Captain's seat part numbers 3A090-0077-01-1 and 3A090-0077-02-1.
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### Page 18

DescriptionService BulletinCompany
(d) Applicable to First Officer's seat part numbers 3A090-0078-01-1, 3A090-0078-02-1.
(e) Applicable to Captain's seat part number 3A258-0007-01-1.
(f) Applicable to First Officer's seat part number 3A258-0008-01-1.
(g) Applicable to Captain's seat part number 3A258-0041-01-1.
(h) Applicable to First Officer's seat part number 3A258-0042-01-1.
(i) Applicable to First Officer's seat part numbers 3A090-0078-03-1, 3A090-0078-04-1, and 3A090-0078-05-
1.
C. Reason
Accomplishment of this service bulletin will decrease the risk that the Captain's and First Officer's seats
will have un-commanded seat movement because of horizontal actuator shaft failure. If this service
bulletin is not done, the output shaft of the horizontal actuator on the Captain's and First Officer's seat(s)
could break and cause an un-commanded seat movement. Un-commanded seat movement could lead
to reduced controllability of the airplane.
An operator reported the Captain's seat could not be locked in position after the horizontal position of
the seat was adjusted in flight. The seat became unlocked from the track and moved freely forward
and aft. Control was given to the First Officer for approach and landing. An inspection found the horizontal
actuator output shaft had broken. When the horizontal actuator output shaft breaks, pilot's cannot
prevent seat movement in a forward and aft direction and cannot lock the seat in position. A broken
shaft is the result of high loads, that are more than design limits, from a stalled motor, that can occur
due to high mechanical resistance to motion during powered operation of the seat. Any object that can
potentially impede seat movement (Foreign Object Debris (FOD)) in the seat tracks is another condition
that can result in a stalled motor and cause the horizontal actuator output shaft to break.
This service bulletin gives instructions to find the part number and 'amendment' of the horizontal actuator
of the Horizontal Movement System (HMS) of the Captain's and First Officer's seats. If the horizontal
actuator has Artus part number AD8650503 at 'Amendment B' or earlier or Artus part number
AD8650502, corrective actions are necessary by an off-airplane inspection of the seat by the applicable
Ipeco service bulletin, where signs of damage to the HMS make the replacement of the horizontal
actuator necessary. If the actuator continues to be Artus part number AD8650503 at 'Amendment B'
or earlier or part number AD8650502, repeat on-airplane inspections are necessary for the Captain's
and First Officer's seats by the applicable Ipeco service bulletin. Installation of a horizontal actuator,
Artus part number AD8650503 at 'Amendment C' or later, will significantly decrease the risk of a broken
horizontal actuator output shaft.
Boeing Service Related Problem (SRP) 767-SRP-25-0306 and 767-SRP-25-0418 are related to this
service bulletin.
Boeing Fleet Team Digest 767 FTD 25-12002 is related to this service bulletin.
Revision 1 was sent to add more information and to better describe the conditions of and the serviceable
definition for Ipeco pilot's seats. Also, the newest issue numbers of the Ipeco service bulletins, which
correct errors in their work instructions, are specified in this revision.
Export Controlled ECCN: 9E991
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### Page 19

Revision 2 is sent to give the newest issue of each concurrent supplier service bulletin and to add an
option to install a serviceable seat for Condition 4 of Work Packages 3 and 4. Also, this revision is sent
to add Ipeco First Officer's seat part numbers 3A090-0078-03-1, 3A090-0078-04-1 and 3A090-0078-05-1
that are identified in Ipeco SB 210-25-05 Issue 5 and Ipeco SB 210-25-06 Issue 5. Compliance tasks
for seat part numbers added in this revision are given a new compliance time for all affected airplanes.
D. Description
Do inspections of the Captain's and First Officer's seats. Do corrective actions.
Effects of this Revision 2 on airplanes on which the Original Issue or Revision 1 was previously done:
ActionConditionGroup
None.Airplanes that have inspected and have done all applicable corrective
actions for the installed seats that were identified in the Original Issue
or Revision 1 of this service bulletin.
Group 1,
Configurations 5, 6,
7 and 8
Do WorkAirplanes that have not inspected and have not done all applicable
corrective actions for First Officer's seat, part number 3A090-0078-
03-1, 3A090-0078-04-1 or 3A090-0078-05-1, because they were
not listed in the Original Issue or Revision 1 of this service bulletin.
Group 1,
Configuration 9 Packages 9
and 10.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones
ZoneModel
211, 212767-200, 767-300, 767-300F,
767-400ER
E. Compliance
Federal Aviation Administration (FAA) Airworthiness Directive AD 2019-14-13 is related to this service
bulletin. The effective date of AD 2019-14-13 is September 12, 2019.
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.
Accomplish the required action(s), based on the applicable condition(s) in Table(s) 1 through 10, 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.
Export Controlled ECCN: 9E991
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BOEING SERVICE BULLETIN 767-25-0549

### Page 20

Group 1, Configuration 1, 3:
Table 1: WORK PACKAGE 1 - CAPTAIN'S SEAT - DETAILED INSPECTION AND OVERHAUL OF THE
HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 36 months after
the Original Issue date
of this service bulletin.
Do PART 1: CAPTAIN'S
SEAT - HORIZONTAL
MOVEMENT SYSTEM
DETAILED INSPECTION.
All Airplanes.
-Before further flight.CONDITION 1 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 1: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS PASSED
(NO FINDINGS) CONDITION 1 (ACTION
2): Install seat.
Refer to Paragraph
1.E., Compliance,
Table 5.
-CONDITION 1 (ACTION
3): Do the repeat actions
in accordance with Work
Package 5.
-Before further flight.OPTION 1 (ACTION 1):
Install seat without power.
CONDITION 2: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS NOT
PASSED (ANY FINDINGS) -Within 120 days afterPART 1 was done.OPTION 1 (ACTION 2):Do PART 3: CAPTAIN'S
SEAT - HORIZONTAL
MOVEMENT SYSTEM
OFF AIRPLANE OVER-
HAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 5.
-OPTION 1 (ACTION 3):
Do the repeat actions in
accordance with Work
Package 5.
-Before further flight.OPTION 2 (ACTION 1):
Do PART 3: CAPTAIN'S
SEAT - HORIZONTAL
MOVEMENT SYSTEM
OFF AIRPLANE OVER-
HAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 5.
-OPTION 2 (ACTION 2):
Do the repeat actions in
accordance with Work
Package 5.
(a) It is permitted to install a spare seat that has passed PART 1 or done PART 3.
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### Page 21

Group 1, Configuration 1-2:
Table 2: WORK PACKAGE 2 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 36 months after
the Original Issue date
of this service bulletin.
Do PART 2: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM DETAILED INSPEC-
TION.
All Airplanes.
-Before further flight.CONDITION 1 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 1: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS PASSED
(NO FINDINGS) CONDITION 1 (ACTION
2): Install seat.
Refer to Paragraph
1.E., Compliance,
Table 6.
-CONDITION 1 (ACTION
3): Do the repeat actions
in accordance with Work
Package 6.
-Before further flight.OPTION 1 (ACTION 1):
Install seat without power.
CONDITION 2: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS NOT
PASSED (ANY FINDINGS) -Within 120 days afterPART 2 was done.OPTION 1 (ACTION 2):Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 6.
-OPTION 1 (ACTION 3):
Do the repeat actions in
accordance with Work
Package 6.
-Before further flight.OPTION 2 (ACTION 1):
Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 6.
-OPTION 2 (ACTION 2):
Do the repeat actions in
accordance with Work
Package 6.
(a) It is permitted to install a spare seat that has passed PART 2 or done PART 4.
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### Page 22

Group 1, Configuration 2, 4:
Table 3: WORK PACKAGE 3 - CAPTAIN'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED
INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 36 months after
the Original Issue date
of this service bulletin.
Do PART 5: CAPTAIN'S
SEAT, PART NUMBER
SERIES 3A258 - HORI-
ZONTAL ACTUATOR
IDENTIFICATION.
All Airplanes.
-Before further flight.CONDITION 3 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 3: THE HORIZON-
TAL ACTUATOR IS PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER --CONDITION 3 (ACTION
2): No further action re-
quired. (a)
-Within 36 months after
the Original Issue date
of this service bulletin.
OPTION 1: Do PART 1:
CAPTAIN'S SEAT - HOR-
IZONTAL MOVEMENT
SYSTEM DETAILED IN-
SPECTION.
CONDITION 4: THE HORIZON-
TAL ACTUATOR IS NOT PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER,
OR THE HORIZONTAL ACTU-
ATOR PART NUMBER AND
AMENDMENT CANNOT BE
FOUND
-OPTION 2: Install a ser-
viceable seat. (a)
-Before further flight.CONDITION 1 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 1: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS PASSED
(NO FINDINGS) CONDITION 1 (ACTION
2): Install seat.
Refer to Paragraph
1.E., Compliance,
Table 7.
-CONDITION 1 (ACTION
3): Do the repeat actions
in accordance with Work
Package 7.
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### Page 23

Group 1, Configuration 2, 4:
Table 3: WORK PACKAGE 3 - CAPTAIN'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED
INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Before further flight.OPTION 1 (ACTION 1):
Install seat without power.
CONDITION 2: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS NOT
PASSED (ANY FINDINGS) -Within 120 days afterPART 1 was done.OPTION 1 (ACTION 2):Do PART 3: CAPTAIN'S
SEAT - HORIZONTAL
MOVEMENT SYSTEM
OFF AIRPLANE OVER-
HAUL. (b)
Refer to Paragraph
1.E., Compliance,
Table 7.
-OPTION 1 (ACTION 3):
Do the repeat actions in
accordance with Work
Package 7.
-Before further flight.OPTION 2 (ACTION 1):
Do PART 3: CAPTAIN'S
SEAT - HORIZONTAL
MOVEMENT SYSTEM
OFF AIRPLANE OVER-
HAUL. (b)
Refer to Paragraph
1.E., Compliance,
Table 7.
-OPTION 2 (ACTION 2):
Do the repeat actions in
accordance with Work
Package 7.
-Before further flight.OPTION 3: Install a ser-
viceable seat. (a)
(a) Terminating Action: Installation of a serviceable Captain's seat as defined in Paragraph 3.A., General
Information, is a terminating action to the repeat inspections for the Captain's seat in accordance
with this service bulletin.
(b) It is permitted to install a spare seat that has passed PART 1 or done PART 3.
Group 1, Configuration 3-4:
Table 4: WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 36 months after
the Original Issue date
of this service bulletin.
Do PART 6: FIRST OFFI-
CER'S SEAT, PART
NUMBER SERIES 3A258
- HORIZONTAL ACTUA-
TOR IDENTIFICATION.
All Airplanes.
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### Page 24

Group 1, Configuration 3-4:
Table 4: WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Before further flight.CONDITION 3 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 3: THE HORIZON-
TAL ACTUATOR IS PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER --CONDITION 3 (ACTION
2): No further action re-
quired. (a)
-Within 36 months after
the Original Issue date
of this service bulletin.
OPTION 1: Do PART 2
FIRST OFFICER'S SEAT
- HORIZONTAL MOVE-
MENT SYSTEM DE-
TAILED INSPECTION.
CONDITION 4: THE HORIZON-
TAL ACTUATOR IS NOT PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER,
OR THE HORIZONTAL ACTU-
ATOR PART NUMBER AND
AMENDMENT CANNOT BE
FOUND
-OPTION 2: Install a ser-
viceable seat. (a)
-Before further flight.CONDITION 1 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 1: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS PASSED
(NO FINDINGS) CONDITION 1 (ACTION
2): Install seat.
Refer to Paragraph
1.E., Compliance,
Table 8.
-CONDITION 1 (ACTION
3): Do the repeat actions
in accordance with Work
Package 8.
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### Page 25

Group 1, Configuration 3-4:
Table 4: WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Before further flight.OPTION 1 (ACTION 1):
Install seat without power.
CONDITION 2: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS NOT
PASSED (ANY FINDINGS) -Within 120 days afterPART 2 was done.OPTION 1 (ACTION 2):Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (b)
Refer to Paragraph
1.E., Compliance,
Table 8.
-OPTION 1 (ACTION 3):
Do the repeat actions in
accordance with Work
Package 8.
-Before further flight.OPTION 2 (ACTION 1):
Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (b)
Refer to Paragraph
1.E., Compliance,
Table 8.
-OPTION 2 (ACTION 2):
Do the repeat actions in
accordance with Work
Package 8.
-Before further flight.OPTION 3: Install a ser-
viceable seat. (a)
(a) Terminating Action: Installation of a serviceable First Officer's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for the First Officer's seat in
accordance with this service bulletin.
(b) It is permitted to install a spare seat that has passed PART 2 or done PART 4.
Group 1, Configuration 1, 3, 5, 7:
Table 5: WORK PACKAGE 5 - CAPTAIN'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL
MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
36 months.Within 36 months after
WORK PACKAGE 1
was accomplished.
Do PART 7: CAPTAIN'S
SEAT HORIZONTAL
MOVEMENT SYSTEM
ON AIRPLANE CHECKS
AND CORRECTIVE AC-
TION.
All airplanes.
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Group 1, Configuration 1-2, 5-6:
Table 6: WORK PACKAGE 6 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORI-
ZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
36 months.Within 36 months after
WORK PACKAGE 2
was accomplished.
Do PART 8: FIRST OFFI-
CER'S SEAT HORIZON-
TAL MOVEMENT SYS-
TEM ON AIRPLANE
CHECKS AND CORREC-
TIVE ACTION.
All airplanes.
Group 1, Configuration 2, 4, 6, 8:
Table 7: WORK PACKAGE 7- CAPTAIN'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
36 months. (a)Within 36 months after
WORK PACKAGE 3
was accomplished.
Do PART 5: CAPTAIN'S
SEAT, PART NUMBER
SERIES 3A258 - HORI-
ZONTAL ACTUATOR
IDENTIFICATION.
All airplanes.
-Before further flight.CONDITION 3 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 3: THE HORIZON-
TAL ACTUATOR IS PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER --CONDITION 3 (ACTION
2): No further action re-
quired. (a)
-Before further flight.OPTION 1: Do PART 7:
CAPTAIN'S SEAT HORI-
ZONTAL MOVEMENT
SYSTEM ON AIRPLANE
CHECKS AND CORREC-
TIVE ACTION.
CONDITION 4: THE HORIZON-
TAL ACTUATOR IS NOT PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER,
OR THE HORIZONTAL ACTU-
ATOR PART NUMBER AND
AMENDMENT CANNOT BE
FOUND OPTION 2: Install a ser-viceable seat. (a)
(a) Terminating Action: Installation of a serviceable Captain's seat as defined in Paragraph 3.A., General
Information, is a terminating action to the repeat inspections for the Captain's seat in accordance
with this service bulletin.
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Group 1, Configuration 3-4, 7-8:
Table 8: WORK PACKAGE 8 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
36 months. (a)Within 36 months after
WORK PACKAGE 4
was accomplished.
Do PART 6: FIRST OFFI-
CER'S SEAT, PART
NUMBER SERIES 3A258
- HORIZONTAL ACTUA-
TOR IDENTIFICATION
All airplanes.
-Before further flight.CONDITION 3 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 3: THE HORIZON-
TAL ACTUATOR IS PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER --CONDITION 3 (ACTION
2): No further action re-
quired. (a)
-Before further flight.OPTION 1: Do PART 8:
FIRST OFFICER'S SEAT
HORIZONTAL MOVE-
MENT SYSTEM ON AIR-
PLANE CHECKS AND
CORRECTIVE ACTION
CONDITION 4: THE HORIZON-
TAL ACTUATOR IS NOT PART
NUMBER AD8650503 AT
'AMENDMENT C' OR LATER,
OR THE HORIZONTAL ACTU-
ATOR PART NUMBER AND
AMENDMENT CANNOT BE
FOUND OPTION 2: Install a ser-viceable seat. (a)
(a) Terminating Action: Installation of a serviceable First Officer's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for the First Officer's seat in
accordance with this service bulletin.
Group 1, Configuration 9:
Table 9: WORK PACKAGE 9 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 36 months after
the Revision 2 date of
this service bulletin.
Do PART 2: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM DETAILED INSPEC-
TION.
All Airplanes.
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Group 1, Configuration 9:
Table 9: WORK PACKAGE 9 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Before further flight.CONDITION 1 (ACTION
1): Make sure the seat
tracks are clear of FOD.
CONDITION 1: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS PASSED
(NO FINDINGS) CONDITION 1 (ACTION
2): Install seat.
Refer to Paragraph
1.E., Compliance,
Table 10.
-CONDITION 1 (ACTION
3): Do the repeat actions
in accordance with Work
Package 10.
-Before further flight.OPTION 1 (ACTION 1):
Install seat without power.
CONDITION 2: THE 'IPECO
SERVICE BULLETIN, PART A
- INSPECTION' IS NOT
PASSED (ANY FINDINGS) -Within 120 days afterPART 2 was done.OPTION 1 (ACTION 2):Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 10.
-OPTION 1 (ACTION 3):
Do the repeat actions in
accordance with Work
Package 10.
-Before further flight.OPTION 2 (ACTION 1):
Do PART 4: FIRST OFFI-
CER'S SEAT - HORIZON-
TAL MOVEMENT SYS-
TEM OFF AIRPLANE
OVERHAUL. (a)
Refer to Paragraph
1.E., Compliance,
Table 10.
-OPTION 2 (ACTION 2):
Do the repeat actions in
accordance with Work
Package 10.
(a) It is permitted to install a spare seat that has passed PART 2, or done PART 4.
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Group 1, Configuration 9:
Table 10: WORK PACKAGE 10 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORI-
ZONTAL MOVEMENT SYSTEM
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
36 months.Within 36 months after
WORK PACKAGE 9
was accomplished.
Do PART 8: FIRST OFFI-
CER'S SEAT HORIZON-
TAL MOVEMENT SYS-
TEM ON AIRPLANE
CHECKS AND CORREC-
TIVE ACTION.
All airplanes.
F. Approval
This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified
in this service bulletin comply with the applicable regulations and are FAA approved, as well as European
Union Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA
approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval were
based on the airplane in its original Boeing delivery configuration or as modified by other approved
Boeing changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected
by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval
before incorporating this service bulletin.
In addition, the manager of the Seattle ACO Branch has reviewed and approves accomplishment of
the inspections, checks, and installation defined in the subject service bulletin revision as an alternative
method of compliance to accomplishing the inspections, checks and installation required by paragraphs
(h) and (j) of AD 2019-14-13. All provisions of AD 2019-14-13 that are not specifically referenced in
the above statement remain fully applicable and must be complied with accordingly.
G. Manpower
The tables below show an estimate of the task hours necessary to do this service bulletin for each
airplane. This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with
operator task hour data if necessary. The estimate does not include lost time. These are some examples
of lost time:
• Time to adjust to the workplace
• Time to schedule the work
• Time to inspect the work
• Time to cure the materials
• Time to make the parts
• Time to find the tools.
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Group 1, Configuration 1, 3:
WORK PACKAGE 1 - CAPTAIN'S SEAT - DETAILED INSPECTION AND OVERHAUL OF THE
HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.400.802Seat Removal
0.300.301Seat Power Adjustment
System Deactivation (b)
0.200.201FIGURE 1
0.601.202Seat Installation
0.500.501Operational Test
0.250.251Close Access
(c)(c)TOTAL FOR EACH AIRPLANE
(a) Deleted.
(b) Applicable to Condition 2 Option 1.
(c) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 1-2:
WORK PACKAGE 2 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.400.802Seat Removal
0.300.301Seat Power Adjustment
System Deactivation (b)
0.200.201FIGURE 2
0.601.202Seat Installation
0.500.501Operational Test
0.250.251Close Access
(c)(c)TOTAL FOR EACH AIRPLANE
(a) Deleted.
(b) Applicable to Condition 2 Option 1.
(c) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
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Group 1, Configuration 2, 4:
WORK PACKAGE 3 - CAPTAIN'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED
INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.250.251Find the Part Number and
Amendment of the Horizon-
tal Actuator
0.200.201FIGURE 1
0.400.802Seat Removal (c)
0.300.301Seat Power Adjustment
System Deactivation (b)
0.601.202Seat Installation (c)
0.500.501Operational Test(c)
0.250.251Close Access
(d)(d)TOTAL FOR EACH AIRPLANE
(a) Deleted.
(b) Applicable to Condition 2 Option 1.
(c) Applicable to Condition 4.
(d) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 3-4:
WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.250.251Find the Part Number and
Amendment of the Horizon-
tal Actuator
0.200.201FIGURE 2
0.400.802Seat Removal (c)
0.300.301Seat Power Adjustment
System Deactivation (b)
0.601.202Seat Installation (c)
0.500.501Operational Test(c)
0.250.251Close Access
(d)(d)TOTAL FOR EACH AIRPLANE
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Group 1, Configuration 3-4:
WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
(a) Deleted.
(b) Applicable to Condition 2 Option 1.
(c) Applicable to Condition 4.
(d) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 1, 3, 5, 7:
WORK PACKAGE 5 - CAPTAIN'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL
MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.200.201FIGURE 1
0.250.251Close Access
0.650.65TOTAL FOR EACH AIRPLANE
Group 1, Configuration 1-2, 5-6:
WORK PACKAGE 6 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZON-
TAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.200.201FIGURE 2
0.250.251Close Access
0.650.65TOTAL FOR EACH AIRPLANE
Group 1, Configuration 2, 4, 6, 8:
WORK PACKAGE 7 - CAPTAIN'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.250.251Find the Part Number and
Amendment of the Horizon-
tal Actuator
0.200.201FIGURE 1
0.400.802Seat Removal (b)
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Group 1, Configuration 2, 4, 6, 8:
WORK PACKAGE 7 - CAPTAIN'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.601.202Seat Installation (b)
0.500.501Operational Test (b)
0.250.251Close Access
(c)(c)TOTAL FOR EACH AIRPLANE
(a) Deleted.
(b) Applicable to Condition 4 Option 2.
(c) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 3-4, 7-8:
WORK PACKAGE 8 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.250.251Find the Part Number and
Amendment of the Horizon-
tal Actuator
0.200.201FIGURE 2
0.400.802Seat Removal (b)
0.601.202Seat Installation (b)
0.500.501Operational Test (b)
0.250.251Close Access
(c)(c)TOTAL FOR EACH AIRPLANE
(a) Deleted.
(b) Applicable to Condition 4 Option 2.
(c) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 9:
WORK PACKAGE 9 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
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Group 1, Configuration 9:
WORK PACKAGE 9 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.400.802Seat Removal
0.300.301Seat Power Adjustment
System Deactivation (a)
0.200.201FIGURE 2
0.601.202Seat Installation
0.500.501Operational Test
0.250.251Close Access
(b)(b)TOTAL FOR EACH AIRPLANE
(a) Applicable to Condition 2 Option 1.
(b) A total is not given as task usage is variable. Add the values of the applicable tasks
together to get the total.
Group 1, Configuration 9:
WORK PACKAGE 10 - FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORI-
ZONTAL MOVEMENT SYSTEM
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
0.200.201FIGURE 2
0.250.251Close Access
0.650.65TOTAL FOR EACH AIRPLANE
The time to do the work in accordance with the applicable Ipeco service bulletin(s) is not included in
the manpower estimate.
H. Weight and Balance Changes
None.
I. Electrical Load Data
Not changed.
J. References
1. Existing Data:
a. Engineering Change Memo PRR B12900-277R, PRR B12901-117S
b. Boeing Service Related Problem (SRP) 767-SRP-25-0306, 767-SRP-25-0418
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c. Federal Aviation Administration (FAA) Airworthiness Directive (AD) 2019-14-13
d. Service Bulletin Index D624T001
e. 767 Aircraft Maintenance Manual (AMM) 25-11-00, 25-11-01
f. 767 Fleet Team Digest (FTD) 25-12002
g. 767 Master Minimum Equipment List (MMEL) 25-11-01-01
h. Ipeco Component Maintenance Manual (CMM) 25-11-26, 25-11-38
i. Ipeco Service Bulletin 098-25-04, 098-25-05, 210-25-05, 210-25-06, 258-25-13, 258-25-14,
258-25-15, 258-25-16
NOTE: The supplier was told to send copies of each service bulletin to each operator.
2. Data Supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
None.
K. Publications Affected
1. Publications:
Chapter-SectionPublication
25-11767 Aircraft Maintenance Manual
11-31, 25-11767 Illustrated Parts Catalog
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue
Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the
Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary.
L. Interchangeability and Intermixability of Parts
Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.
M. Software Accomplishment Summary
Not affected.
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### Page 37

2.    MATERIAL INFORMATION
A. Material - Price and Availability
The operator can supply the parts and materials shown in Paragraph 2.C., Parts Necessary for Each
Airplane. Refer to Ipeco SB 098-25-05, Ipeco SB 210-25-06, Ipeco SB 258-25-14 or Ipeco SB 258-25-16.
B. Industry Support Information
Boeing warranty remedies are not available for the inspection and/or repair procedures given in this
service bulletin.
C. Parts Necessary for Each Airplane
1. Kits/Parts
None.
2. Parts and Materials Supplied by the Operator
The following parts or materials are necessary to do the change in this service bulletin. Parts and
materials in the manuals given in Paragraph 1.J., References, can also be necessary. Examine
operator part and material supply to make sure all necessary parts and materials are available.
Group 1, Configuration 2-4, 6-8:
NotesExisting Ipeco Part Num-
ber
NameQTYIpeco Part Num-
ber
(a)(c)(d)(e)3A258-0007-01-1Seat Assy - Captain13A258-0007-01-2
(b)(c)(d)(e)3A258-0041-01-1Seat Assembly - Captain3A258-0041-01-2
(a)(c)(d)(e)3A258-0008-01-1Seat Assy - F/O13A258-0008-01-2
(b)(c)(d)(e)3A258-0042-01-1Seat Assembly - Fist Officer3A258-0042-01-2
(a) Refer to Ipeco SB 258-25-16.
(b) Refer to Ipeco SB 258-25-14.
(c) This part is used in production.
(d) A new seat assembly is an alternative to the accomplishment of the applicable Ipeco service bulletin.
(e) This part number of new seat assembly has horizontal actuator, Artus part number AD8650503 (Ipeco
part number 2A258-0487), at 'Amendment C' or later, installed.
3. Parts Modified and Reidentified
The parts shown below are changed as shown in this service bulletin. The quantity (QTY) is the
number of parts changed on each airplane.
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Group 1, Configuration 1-3, 5-7:
NotesNew Ipeco Part
Number
NameQTYExisting Ipeco
Part Number
(a)(c)-Seat Assy13A090-0025-01-1
(b)(c)-Seat Assy3A090-0077-01-1
(b)(c)-Seat Assy3A090-0077-02-1
(a)(c)-Seat Assy13A090-0026-01-1
(b)(c)-Seat Assy3A090-0078-01-1
(b)(c)-Seat Assy3A090-0078-02-1
(b)(c)-Seat Assy3A090-0078-03-1
(b)(c)-Seat Assy3A090-0078-04-1
(b)(c)-Seat Assy3A090-0078-05-1
(a) Make the change in accordance with Ipeco SB 098-25-05.
(b) Make the change in accordance with Ipeco SB 210-25-06.
(c) The Ipeco part number (and Boeing part number) does not change. Identify on the part that
the change done in accordance with this service bulletin was made.
Group 1, Configuration 2-4, 6-8:
NotesNew Ipeco Part
Number
NameQTYExisting Ipeco
Part Number
(a)(c)(d)3A258-0007-01-1ZSeat Assy - Captain13A258-0007-01-1
(b)(c)(d)3A258-0041-01-1ZSeat Assembly - Cap-
tain
3A258-0041-01-1
(a)(c)(d)3A258-0008-01-1ZSeat Assy - F/O13A258-0008-01-1
(b)(c)(d)3A258-0042-01-1ZSeat Assembly - Fist
Officer
3A258-0042-01-1
(a) Make the change in accordance with Ipeco SB 258-25-16.
(b) Make the change in accordance with Ipeco SB 258-25-14.
(c) This part is not used in production.
(d) The Captain's and First Officer's seats are only changed into the new part numbers if the
horizontal actuator AD8650503 at amendment C or later, or part 2A258-0487 is installed.
4. Parts Removed and Not Replaced
None.
D. Parts Necessary to Change Spares
Refer to Ipeco SB 098-25-05, Ipeco SB 210-25-06, Ipeco SB 258-25-14 or Ipeco SB 258-25-16.
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E. Special Tooling - Price and Availability
Refer to Ipeco SB 098-25-05, Ipeco SB 210-25-06, Ipeco SB 258-25-14 or Ipeco SB 258-25-16.
F. Special Tooling Necessary to do this Service Bulletin
Refer to Ipeco SB 098-25-05, Ipeco SB 210-25-06, Ipeco SB 258-25-14 or Ipeco SB 258-25-16.
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### Page 41

3.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF
METAL PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED
MATERIAL, METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE
BUNDLES CAN CAUSE DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES
CAN CAUSE SPARKS OR OTHER ELECTRICAL DAMAGE.
CAUTION
NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. The work instructions are divided into work packages. Each work package can be
completed independently during separate maintenance visits. Task hours and elapsed
hours for each package are given in Paragraph 1.G., Manpower.
4. Unless shown differently, these dimensions and tolerances are used:
– Linear dimensions are in inches
– Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus
or minus 0.03 inch
– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch
– Angular tolerance is plus or minus 2 degrees
– Hole dimensions for standard solid rivets and fasteners are in Structural Repair
Manual (SRM) Chapter 51
– Torque Values:
— Values for structural fasteners are given in 767-200/300/300F/400ER
Structural Repair Manual, Chapter 51.
5. A Detailed Inspection is defined as: An intensive examination of a specific item,
installation, or assembly to detect damage, failure, or irregularity. Available lighting
is normally supplemented with a direct source of good lighting at an intensity deemed
appropriate. Inspection aids such as mirrors, magnifying lenses, etc. may be
necessary. Surface cleaning and elaborate procedures may be required.
6. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative
procedure, the accepted alternative procedure can be used. When the words "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
7. Refer to APPENDIX A, APPENDIX B, APPENDIX C, APPENDIX D, APPENDIX E,
APPENDIX F, APPENDIX G, APPENDIX H, APPENDIX J and APPENDIX K for logic
diagram(s). Logic diagrams are provided as an aid only. Information contained in
Paragraph 1.E., Compliance is the primary source for compliance times. Information
in Paragraph 3.B., Work Instructions is the primary source for tasks required for
compliance.
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8. If it is necessary to remove more parts for access, you can remove those parts. If
you can get access without removing identified parts, it is not necessary to remove
all of the identified parts. Jacking and shoring limitations must be observed.
9. Use of colors in Figures is based on guidance from the ATA e-Business Program
(ATA) iSpec 2200.
10. 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.
11. The compliance times for the actions in Paragraph 3.B., WORK INSTRUCTIONS
are in Paragraph 1.E., Compliance.
12. The CONDITIONS, ACTIONS and OPTIONS shown apply to the Captain's and First
Officer's seats independently.
13. Some steps in the Work Instructions are labeled as Required for Compliance (RC).
If this service bulletin is mandated by an Airworthiness Directive (AD), then the steps
labeled as "RC", including sub-steps under an RC step and any figures identified in
an RC step, must be done to comply with the AD. If a step or sub-step is labeled
"RC Exempt" then the RC requirement is removed from that step or sub-step. An
Alternative Method of Compliance (AMOC) is required for any deviations to RC steps,
including sub-steps and identified figures. Steps not labeled as RC may be deviated
from using accepted methods in accordance with the operator's maintenance or
inspection program without obtaining approval of an AMOC. This is provided that
the RC steps, including sub-steps and identified figures, can still be done as specified,
and the airplane can be put back in an airworthy condition.
14. For part number series 3A258 seats, horizontal actuator part number AD8650503
identified in the Paragraph 3.B., Work Instructions is the Artus identity. This actuator
also has an Ipeco identity, which is part number 2A258-0487.
15. A serviceable Captain's seat in this service bulletin is defined as one with part number
3A258-0041-01-2, 3A258-0041-01-1Z, 3A258-0007-01-2 or 3A258-0007-01-1Z, or
as one with part number 3A258-0041-01-1 that has a horizontal actuator with Artus
part number AD8650503 at 'Amendment C' or later, or as one with part number
3A258-0007-01-1 that has a horizontal actuator with Artus part number AD8650503
at 'Amendment C' or later. Installation of a serviceable Captain's seat is a terminating
action to the repeat inspections in this service bulletin.
16. A serviceable First Officer's seat in this service bulletin is defined as one with part
number 3A258-0042-01-2, 3A258-0042-01-1Z, 3A258-0008-01-2, or
3A258-0008-01-1Z, or as one with part number 3A258-0042-01-1 that has a horizontal
actuator with Artus part number AD8650503 at 'Amendment C' or later, or as one
with part number 3A258-0008-01-1 that has a horizontal actuator with Artus part
number AD8650503 at 'Amendment C' or later. Installation of a serviceable First
Officer's seat is a terminating action to the repeat inspections in this service bulletin.
17. Foreign Object Debris (FOD) in this service bulletin can include coins, tools, nuts,
bolts, a pen, or any object that can potentially impede seat movement.
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B. WORK INSTRUCTIONS
Group 1, Configuration 1, 3:
WORK PACKAGE 1 - CAPTAIN'S SEAT - DETAILED INSPECTION AND OVERHAUL OF THE
HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 1: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT SYSTEM DETAILED
INSPECTION
a. CONDITION 1: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS PASSED (NO
FINDINGS)
(1) CONDITION 1 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 1.
(2) CONDITION 1 (ACTION 2): Install seat. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(3) CONDITION 1 (ACTION 3): Do the repeat actions in accordance with Work Package 5.
Refer to Paragraph 1.E., Compliance.
b. CONDITION 2: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS NOT PASSED
(ANY FINDINGS)
(1) CONDITION 2, OPTION 1 (ACTION 1): Install seat without power:
Seat Installation and Deactivation
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(b) Install seat that has done PART 1. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(c) Deactivate the power adjustment system of the seat in accordance with 767 Master
Minimum Equipment List (MMEL) 25-11-01-01.
(2) CONDITION 2, OPTION 1 (ACTION 2): Do PART 3: CAPTAIN'S SEAT - HORIZONTAL
MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 1 or done PART
3.
(3) CONDITION 2, OPTION 1 (ACTION 3): Do the repeat actions in accordance with Work
Package 5. Refer to Paragraph 1.E., Compliance.
(4) CONDITION 2, OPTION 2 (ACTION 1): Do PART 3: CAPTAIN'S SEAT - HORIZONTAL
MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
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### Page 44

(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 1 or done PART
3.
(5) CONDITION 2, OPTION 2 (ACTION 2): Do the repeat actions in accordance with Work
Package 5. Refer to Paragraph 1.E., Compliance.
c. RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM 25-11-01 as
an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 1-2:
WORK PACKAGE 2 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 2: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM DETAILED
INSPECTION
a. CONDITION 1: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS PASSED (NO
FINDINGS)
(1) CONDITION 1 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 2.
(2) CONDITION 1 (ACTION 2): Install seat. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(3) CONDITION 1 (ACTION 3): Do the repeat actions in accordance with Work Package 6.
Refer to Paragraph 1.E., Compliance.
b. CONDITION 2: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS NOT PASSED
(ANY FINDINGS)
(1) CONDITION 2, OPTION 1 (ACTION 1): Install seat without power:
Seat Installation and Deactivation
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat that has done PART 2. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(c) Deactivate the power adjustment system of the seat in accordance with 767 Master
Minimum Equipment List (MMEL) 25-11-01-01.
(2) CONDITION 2, OPTION 1 (ACTION 2): Do PART 4: FIRST OFFICER'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
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### Page 45

(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2 or done PART
4.
(3) CONDITION 2, OPTION 1 (ACTION 3): Do the repeat actions in accordance with Work
Package 6. Refer to Paragraph 1.E., Compliance.
(4) CONDITION 2, OPTION 2 (ACTION 1): Do PART 4: FIRST OFFICER'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2 or done PART
4.
(5) CONDITION 2, OPTION 2 (ACTION 2): Do the repeat actions in accordance with Work
Package 6. Refer to Paragraph 1.E., Compliance.
c. RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM 25-11-01 as
an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 2, 4:
WORK PACKAGE 3 - CAPTAIN'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION, DETAILED
INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 5: CAPTAIN'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL ACTUATOR
IDENTIFICATION
a. CONDITION 3: THE HORIZONTAL ACTUATOR IS PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER
(1) CONDITION 3 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 1.
(2) CONDITION 3 (ACTION 2): No further action required.
b. CONDITION 4: THE HORIZONTAL ACTUATOR IS NOT PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER, OR THE HORIZONTAL ACTUATOR PART NUMBER AND
AMENDMENT CANNOT BE FOUND
(1) CONDITION 4,OPTION 1: Do PART 1: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT
SYSTEM DETAILED INSPECTION
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### Page 46

(a) CONDITION 1: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS
PASSED (NO FINDINGS)
1) CONDITION 1 (ACTION 1): Make sure the seat tracks are clear of FOD in
accordance with FIGURE 1.
2) CONDITION 1 (ACTION 2): Install seat. Refer to 767 AMM 25-11-01 as an
accepted procedure.
3) CONDITION 1 (ACTION 3): Do the repeat actions in accordance with Work
Package 7. Refer to Paragraph 1.E., Compliance.
(b) CONDITION 2: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS NOT
PASSED (ANY FINDINGS)
1) CONDITION 2, OPTION 1 (ACTION 1): Install seat without power:
Seat Installation and Deactivation
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
b) Install a seat that has done PART 1. Refer to 767 AMM 25-11-01 as an
accepted procedure.
c) Deactivate the power adjustment system of the seat in accordance with
767 Master Minimum Equipment List (MMEL) 25-11-01-01.
2) CONDITION 2, OPTION 1 (ACTION 2): Do PART 3: CAPTAIN'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 1 or
done PART 3.
3) CONDITION 2, OPTION 1 (ACTION 3): Do the repeat actions in accordance
with Work Package 7. Refer to Paragraph 1.E., Compliance.
4) CONDITION 2, OPTION 2 (ACTION 1): Do PART 3: CAPTAIN'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 1 or
done PART 3.
5) CONDITION 2, OPTION 2 (ACTION 2): Do the repeat actions in accordance
with Work Package 7. Refer to Paragraph 1.E., Compliance.
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### Page 47

6) CONDITION 2, OPTION 3: Install a serviceable seat:
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
b) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted
procedure.
NOTE: Installation of a serviceable Captain's seat as defined in Paragraph
3.A., General Information, is a terminating action to the repeat
inspections for the Captain's seat in accordance with this service
bulletin.
(c) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
(2) CONDITION 4, OPTION 2: Install a serviceable seat:
(a) Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
(b) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(c) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: Installation of a serviceable Captain's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for
the Captain's seat in accordance with this service bulletin.
(d) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 3-4:
WORK PACKAGE 4 - FIRST OFFICER'S SEAT - HORIZONTAL ACTUATOR IDENTIFICATION,
DETAILED INSPECTION AND OVERHAUL OF THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 6: FIRST OFFICER'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL
ACTUATOR IDENTIFICATION
a. CONDITION 3: THE HORIZONTAL ACTUATOR IS PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER
(1) CONDITION 3 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 2.
(2) CONDITION 3 (ACTION 2): No further action required.
b. CONDITION 4: THE HORIZONTAL ACTUATOR IS NOT PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER, OR THE HORIZONTAL ACTUATOR PART NUMBER AND
AMENDMENT CANNOT BE FOUND
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### Page 48

(1) CONDITION 4,OPTION 1: Do PART 2: FIRST OFFICER'S SEAT - HORIZONTAL
MOVEMENT SYSTEM DETAILED INSPECTION
(a) CONDITION 1: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS
PASSED (NO FINDINGS)
1) CONDITION 1 (ACTION 1): Make sure the seat tracks are clear of FOD in
accordance with FIGURE 2.
2) CONDITION 1 (ACTION 2): Install seat. Refer to 767 AMM 25-11-01 as an
accepted procedure.
3) CONDITION 1 (ACTION 3): Do the repeat actions in accordance with Work
Package 8. Refer to Paragraph 1.E., Compliance.
(b) CONDITION 2: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS NOT
PASSED (ANY FINDINGS)
1) CONDITION 2, OPTION 1 (ACTION 1): Install seat without power:
Seat Installation and Deactivation
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b) Install a seat that has done PART 2. Refer to 767 AMM 25-11-01 as an
accepted procedure.
c) Deactivate the power adjustment system of the seat in accordance with
767 Master Minimum Equipment List (MMEL) 25-11-01-01.
2) CONDITION 2, OPTION 1 (ACTION 2): Do PART 4: FIRST OFFICER'S SEAT
- HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2 or
done PART 4.
3) CONDITION 2, OPTION 1 (ACTION 3): Do the repeat actions in accordance
with Work Package 8. Refer to Paragraph 1.E., Compliance.
4) CONDITION 2, OPTION 2 (ACTION 1): Do PART 4: FIRST OFFICER'S SEAT
- HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL:
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2 or
done PART 4.
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### Page 49

5) CONDITION 2, OPTION 2 (ACTION 2): Do the repeat actions in accordance
with Work Package 8. Refer to Paragraph 1.E., Compliance.
6) CONDITION 2, OPTION 3: Install a serviceable seat:
a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted
procedure.
NOTE: Installation of a serviceable First Officer's seat as defined in
Paragraph 3.A., General Information, is a terminating action to the
repeat inspections for the First Officer's seat in accordance with
this service bulletin.
(c) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
(2) CONDITION 4, OPTION 2: Install a serviceable seat:
(a) Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
(b) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(c) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: Installation of a serviceable First Officer's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for
the First Officer's seat in accordance with this service bulletin.
(d) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 1, 3, 5, 7:
WORK PACKAGE 5: CAPTAIN'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL
MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 7: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT SYSTEM ON AIRPLANE
CHECKS AND CORRECTIVE ACTION
a. Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
b. Continue to do the repeat actions in accordance with Work Package 5. Refer to Paragraph
1.E., Compliance.
3. Put the airplane back to a serviceable condition.
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### Page 50

Group 1, Configuration 1-2, 5-6:
WORK PACKAGE 6: FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL
MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 8: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM ON AIRPLANE
CHECKS AND CORRECTIVE ACTION
a. Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b. Continue to do the repeat actions in accordance with Work Package 6. Refer to Paragraph
1.E., Compliance.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 2, 4, 6, 8:
WORK PACKAGE 7: CAPTAIN'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 5: CAPTAIN'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL ACTUATOR
IDENTIFICATION
a. CONDITION 3: THE HORIZONTAL ACTUATOR IS PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER
(1) CONDITION 3 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 1.
(2) CONDITION 3 (ACTION 2): No further action required.
b. CONDITION 4: THE HORIZONTAL ACTUATOR IS NOT PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER, OR THE HORIZONTAL ACTUATOR PART NUMBER AND
AMENDMENT CANNOT BE FOUND
(1) CONDITION 4, OPTION 1: Do PART 7: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT
SYSTEM ON AIRPLANE CHECKS AND CORRECTIVE ACTION
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(b) Continue to do the repeat actions in accordance with Work Package 7. Refer to
Paragraph 1.E., Compliance.
(2) CONDITION 4, OPTION 2: Install a serviceable seat:
(a) Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
(b) Make sure the seat tracks are clear of FOD in accordance with FIGURE 1.
(c) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
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### Page 51

NOTE: Installation of a serviceable Captain's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for
the Captain's seat in accordance with this service bulletin.
(d) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 3-4, 7-8:
WORK PACKAGE 8: FIRST OFFICER'S SEAT - REPEAT ACTIONS - HORIZONTAL ACTUATOR
IDENTIFICATION AND CHECK OF THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - PART 6: FIRST OFFICER'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL
ACTUATOR IDENTIFICATION
a. CONDITION 3: THE HORIZONTAL ACTUATOR IS PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER
(1) CONDITION 3 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 2.
(2) CONDITION 3 (ACTION 2): No further action required.
b. CONDITION 4: THE HORIZONTAL ACTUATOR IS NOT PART NUMBER AD8650503 AT
'AMENDMENT C' OR LATER, OR THE HORIZONTAL ACTUATOR PART NUMBER AND
AMENDMENT CANNOT BE FOUND
(1) CONDITION 4, OPTION 1: Do PART 8: FIRST OFFICER'S SEAT - HORIZONTAL
MOVEMENT SYSTEM ON AIRPLANE CHECKS AND CORRECTIVE ACTION
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Continue to do the repeat actions in accordance with Work Package 8. Refer to
Paragraph 1.E., Compliance.
(2) CONDITION 4, OPTION 2: Install a serviceable seat:
(a) Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
(b) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(c) Install a serviceable seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: Installation of a serviceable First Officer's seat as defined in Paragraph 3.A.,
General Information, is a terminating action to the repeat inspections for
the First Officer's seat in accordance with this service bulletin.
(d) RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM
25-11-01 as an accepted procedure.
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### Page 52

3. Put the airplane back to a serviceable condition.
Group 1, Configuration 9:
WORK PACKAGE 9 - FIRST OFFICER'S SEAT - DETAILED INSPECTION AND OVERHAUL OF
THE HORIZONTAL MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 2: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM DETAILED
INSPECTION
a. CONDITION 1: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS PASSED (NO
FINDINGS)
(1) CONDITION 1 (ACTION 1): Make sure the seat tracks are clear of FOD in accordance
with FIGURE 2.
(2) CONDITION 1 (ACTION 2): Install seat. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(3) CONDITION 1 (ACTION 3): Do the repeat actions in accordance with Work Package 10.
Refer to Paragraph 1.E., Compliance.
b. CONDITION 2: THE 'IPECO SERVICE BULLETIN, PART A - INSPECTION' IS NOT PASSED
(ANY FINDINGS)
(1) CONDITION 2, OPTION 1 (ACTION 1): Install seat without power:
Seat Installation and Deactivation
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat that has done PART 2. Refer to 767 AMM 25-11-01 as an accepted
procedure.
(c) Deactivate the power adjustment system of the seat in accordance with 767 Master
Minimum Equipment List (MMEL) 25-11-01-01.
(2) CONDITION 2, OPTION 1 (ACTION 2): Do PART 4: FIRST OFFICER'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2, or done PART
4.
(3) CONDITION 2, OPTION 1 (ACTION 3): Do the repeat actions in accordance with Work
Package 10. Refer to Paragraph 1.E., Compliance.
(4) CONDITION 2, OPTION 2 (ACTION 1): Do PART 4: FIRST OFFICER'S SEAT -
HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
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BOEING SERVICE BULLETIN 767-25-0549

### Page 53

(a) Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
(b) Install seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: It is permitted to install a spare seat that has passed PART 2, or done PART
4.
(5) CONDITION 2, OPTION 2 (ACTION 2): Do the repeat actions in accordance with Work
Package 10. Refer to Paragraph 1.E., Compliance.
c. RC Exempt - Do the electrical operational check of the seat. Refer to 767 AMM 25-11-01 as
an accepted procedure.
3. Put the airplane back to a serviceable condition.
Group 1, Configuration 9:
WORK PACKAGE 10: FIRST OFFICER'S SEAT - REPEAT ACTIONS - CHECK OF THE HORIZONTAL
MOVEMENT SYSTEM
1. Get access to the flight compartment.
2. RC - Do PART 8: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM ON AIRPLANE
CHECKS AND CORRECTIVE ACTION
a. Make sure the seat tracks are clear of FOD in accordance with FIGURE 2.
b. Continue to do the repeat actions in accordance with Work Package 10. Refer to Paragraph
1.E., Compliance.
3. Put the airplane back to a serviceable condition.
PART 1: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT SYSTEM DETAILED INSPECTION
1. RC Exempt - Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: Some of the inspections detailed in the Ipeco service bulletins do not require the seat to
be removed.
2. Do the detailed inspections from the 'Ipeco service bulletin Part A - Inspection' for findings specified
in, and in accordance with the applicable Ipeco service bulletin in the table below, for the seat:
IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-05(a)S232T303-3033A090-0025-01-1
Ipeco SB 210-25-06(a)S232T303-4033A090-0077-01-1
Ipeco SB 210-25-06(a)S232T303-4053A090-0077-02-1
Ipeco SB 258-25-16(a)S232T311-33A258-0007-01-1
Ipeco SB 258-25-14(a)S232T311-1033A258-0041-01-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
53 of 83
BOEING SERVICE BULLETIN 767-25-0549

### Page 54

PART 2: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM DETAILED INSPECTION
1. RC Exempt - Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
NOTE: Some of the inspections detailed in the Ipeco service bulletins do not require the seat to
be removed.
2. Do the detailed inspections from the 'Ipeco service bulletin Part A - Inspection' for findings specified
in, and in accordance with the applicable Ipeco service bulletin in the table below, for the seat:
IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-05(a)S232T303-3043A090-0026-01-1
Ipeco SB 210-25-06(a)S232T303-4043A090-0078-01-1
Ipeco SB 210-25-06(a)S232T303-4063A090-0078-02-1
Ipeco SB 258-25-16(a)S232T311-43A258-0008-01-1
Ipeco SB 258-25-14(a)S232T311-1043A258-0042-01-1
Ipeco SB 210-25-06(a)S232T303-4663A090-0078-03-1
Ipeco SB 210-25-06(a)S232T303-4683A090-0078-04-1
Ipeco SB 210-25-06(a)S232T303-4703A090-0078-05-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
PART 3: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE OVERHAUL
1. Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
2. Do the applicable Ipeco service bulletin in the table below, for the seat:
IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-05(a)S232T303-3033A090-0025-01-1
Ipeco SB 210-25-06(a)S232T303-4033A090-0077-01-1
Ipeco SB 210-25-06(a)S232T303-4053A090-0077-02-1
Ipeco SB 258-25-16(a)S232T311-33A258-0007-01-1
Ipeco SB 258-25-14(a)S232T311-1033A258-0041-01-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
PART 4: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM OFF AIRPLANE
OVERHAUL
1. Remove seat. Refer to 767 AMM 25-11-01 as an accepted procedure.
2. Do the applicable Ipeco service bulletin in the table below, for the seat:
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
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### Page 55

IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-05(a)S232T303-3043A090-0026-01-1
Ipeco SB 210-25-06(a)S232T303-4043A090-0078-01-1
Ipeco SB 210-25-06(a)S232T303-4063A090-0078-02-1
Ipeco SB 258-25-16(a)S232T311-43A258-0008-01-1
Ipeco SB 258-25-14(a)S232T311-1043A258-0042-01-1
Ipeco SB 210-25-06(a)S232T303-4663A090-0078-03-1
Ipeco SB 210-25-06(a)S232T303-4683A090-0078-04-1
Ipeco SB 210-25-06(a)S232T303-4703A090-0078-05-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
Group 1, Configuration 2, 4, 6, 8:
PART 5: CAPTAIN'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL ACTUATOR
IDENTIFICATION
1. Find the Artus part number and amendment of the horizontal actuator that is installed on the seat.
a. Captain's seat part numbers 3A258-0041-01-2, 3A258-0041-01-1Z, 3A258-0007-01-2 and
3A258-0007-01-1Z have a horizontal actuator with Artus part number AD8650503 at
'Amendment C' or later. For Captain's seats with other part numbers, maintenance records
can be used if the part number and Amendment of the horizontal actuator can be identified.
If maintenance records are not available or the part number and amendment cannot be
identified from maintenance records, inspect to find the part number and Amendment of the
horizontal actuator installed on the seat. Refer to APPENDIX I.
NOTE: Installation of a serviceable Captain's seat as defined in Paragraph 3.A., General
Information, is a terminating action to the repeat inspections for the Captain's seat
in accordance with this service bulletin.
Group 1, Configuration 3-4, 7-8:
PART 6: FIRST OFFICER'S SEAT, PART NUMBER SERIES 3A258 - HORIZONTAL ACTUATOR
IDENTIFICATION
1. Find the Artus part number and amendment of the horizontal actuator that is installed on the seat.
a. First Officer's seat part numbers 3A258-0042-01-2, 3A258-0042-01-1Z, 3A258-0008-01-2
and 3A258-0008-01-1Z have a horizontal actuator with Artus part number AD8650503 at
'Amendment C' or later. For First Officer's seats with other part numbers, maintenance records
can be used if the part number and Amendment of the horizontal actuator can be identified.
If maintenance records are not available or the part number and amendment cannot be
identified from maintenance records, inspect to find the part number and Amendment of the
horizontal actuator installed on the seat. Refer to APPENDIX I.
NOTE: Installation of a serviceable First Officer's seat as defined in Paragraph 3.A., General
Information, is a terminating action to the repeat inspections for the First Officer's
seat in accordance with this service bulletin.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
55 of 83
BOEING SERVICE BULLETIN 767-25-0549

### Page 56

PART 7: CAPTAIN'S SEAT - HORIZONTAL MOVEMENT SYSTEM ON AIRPLANE CHECKS AND
CORRECTIVE ACTION
1. Do the checks and applicable corrective actions in accordance with the applicable Ipeco service
bulletin in the table below, for the seat:
IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-04(a)S232T303-3033A090-0025-01-1
Ipeco SB 210-25-05(a)S232T303-4033A090-0077-01-1
Ipeco SB 210-25-05(a)S232T303-4053A090-0077-02-1
Ipeco SB 258-25-15(a)S232T311-33A258-0007-01-1
Ipeco SB 258-25-13(a)S232T311-1033A258-0041-01-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
PART 8: FIRST OFFICER'S SEAT - HORIZONTAL MOVEMENT SYSTEM ON AIRPLANE CHECKS
AND CORRECTIVE ACTION
1. Do the checks and applicable corrective actions in accordance with the applicable Ipeco service
bulletin in the table below, for the seat:
IPECO SERVICE BULLETINBOEING PART NUMBERIPECO PART NUMBER
Ipeco SB 098-25-04(a)S232T303-3043A090-0026-01-1
Ipeco SB 210-25-05(a)S232T303-4043A090-0078-01-1
Ipeco SB 210-25-05(a)S232T303-4063A090-0078-02-1
Ipeco SB 210-25-05(a)S232T303-4663A090-0078-03-1
Ipeco SB 210-25-05(a)S232T303-4683A090-0078-04-1
Ipeco SB 210-25-05(a)S232T303-4703A090-0078-05-1
Ipeco SB 258-25-15(a)S232T311-43A258-0008-01-1
Ipeco SB 258-25-13(a)S232T311-1043A258-0042-01-1
(a) In accordance with the applicable Ipeco service bulletin Issue listed in Paragraph 1.B., Concurrent Require-
ments.
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2: January 27, 2023
56 of 83
BOEING SERVICE BULLETIN 767-25-0549

### Page 57 (OCR)

BOEING SERVICE BULLETIN 767-25-0549
-WD
CAPTAIN'S SEAT  2545522
(TYPICAL)
(LEFT SIDE VIEW)
FIGURE 1: FLIGHT COMPARTMENT - CAPTAIN'S SEAT TRACKS - FOREIGN OBJECT DEBRIS - REMOVAL
(SHEET 1 OF 2)
Original Issue: May 09, 2017
Revision 2 January 27, 2023  Export Controlled ECCN: 9E991  767-25-0549
Copyright © Unpublished Work - See page 1 for details.  57 of 83

### Page 58

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY
numbers shown below are the number of parts necessary for each airplane.
More DataQtyIdentificationNameTaskStep
Make sure the seat
tracks are clear of
FOD. Refer to 767
AMM 25-11-00 as
an accepted proce-
dure.
--FODRemove1
FIGURE 1: FLIGHT COMPARTMENT - CAPTAIN'S SEAT TRACKS - FOREIGN OBJECT DEBRIS - REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
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BOEING SERVICE BULLETIN 767-25-0549

### Page 59 (OCR)

BOEING SERVICE BULLETIN 767-25-0549
FIRST OFFICER'S SEAT  (TYPICAL)  2545524
(LEFT SIDE VIEW)
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICER'S SEAT TRACKS - FOREIGN OBJECT DEBRIS -
REMOVAL
(SHEET 1 OF 2)
Original Issue: May 09, 2017
Revision 2 January 27, 2023  Export Controlled ECCN: 9E991  767-25-0549
Copyright © Unpublished Work - See page 1 for details.  59 of 83

### Page 60

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY
numbers shown below are the number of parts necessary for each airplane.
More DataQtyIdentificationNameTaskStep
Make sure the seat
tracks are clear of
FOD. Refer to 767
AMM 25-11-00 as
an accepted proce-
dure.
--FODRemove1
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICER'S SEAT TRACKS - FOREIGN OBJECT DEBRIS -
REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991
Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 09, 2017
767-25-0549Revision 2 January 27, 2023
60 of 83
BOEING SERVICE BULLETIN 767-25-0549

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