Alert Service Bulletin B787-81205-SB250054-00 EQUIPMENT AND

FURNISHINGS - Flight Compartment Seats - Captain and First Officer Seat

Assembly Test and Replacement

Publication: B787-81205-SB250054-00 Issue 001, 19 Dec 2014

BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET

Copyright © 2014 Boeing. Unpublished Work. All rights reserved.

Treatment of this data module and its content is governed by contract with Boeing. Rights to use this data module are licensed on a per

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license is granted in connection with this document unless provided in writing by Boeing.

EXPORT CONTROLLED

Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license

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has the individual responsibility to abide by all export laws.

ECCN: 9E991

The applicability information below is referenced at the lower left of each page to indicate the page applicability.

These references are valid for this print copy only.

PM Applicability (Publication Module applicability)

787-8 Airplanes. Refer to Data Module SB B787-A-25-00-0054-00A-932A-D, Paragraph 1., Effectivity for the

list of affected airplanes.

TITLE PAGE B787-81205-SB250054-00

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6.0

B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Alert Service Bulletin B787-81205-SB250054-00

Table of Contents

Page

Summary .....................................................5

PLANNING INFORMATION ..........................................9

1. Effectivity .............................................9

A. Airplanes ............................................9

B. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

9. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

10. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

A. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B. Data Supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . . 15

C. Installation Requirement Modules Used in the Preparation of this Service Bulletin: . . . 15

11. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

12. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . 15

13. Software Accomplishment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3. Parts Necessary for Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

A. Kits/Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. Parts and Materials Supplied by the Operator: . . . . . . . . . . . . . . . . . . . . . . . 17

C. Parts Modified and Reidentified: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

D. Parts Removed and Not Replaced: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . 18

ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Appendix A – CAPTAIN AND FIRST OFFICER SEAT ASSEMBLY TEST [Group 1:]. . . . . . . . . . . . 23

TABLE OF CONTENTS B787-81205-SB250054-00

Issue 001, 19 Dec 2014

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Alert Service Bulletin B787-81205-SB250054-00

List of Illustrations

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

Description

Group 1:

Table 1 List of Illustrations - Alert Service Bulletin B787-81205-SB250054-00

ICN Used In

ICN-B787-A-000061-A-81205-08859-A-01-1 B787-A-25-00-0054-00A-931C-D Issue 001

ICN-B787-A-000061-A-81205-08860-A-01-1 B787-A-25-00-0054-0AA-931D-D Issue 001

ICN-B787-A-000061-A-81205-08861-A-01-1 B787-A-25-00-0054-0AA-931D-D Issue 001

ICN-B787-A-000061-A-81205-08862-A-01-1 B787-A-25-00-0054-0AA-931D-D Issue 001

Applicable To: B787-A-25-00-0054-00A-00AA-D

Model 787 End of data module Issue 001, 19 Dec 2014

See Applicability of this data module

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Alert Service Bulletin B787-81205-SB250054-00

List of Effective Data Modules

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

Description

Group 1:

Table 1 List of Effective Data Modules - Alert Service Bulletin B787-81205-SB250054-00

Data Module – Information Name Issue Issue Status Issue Date

B787-A-25-00-0054-00A-00AA-D – List of Illustrations 001 New 2014-12-19

B787-A-25-00-0054-00A-00SA-D – List of Effective Data Modules 001 New 2014-12-19

B787-A-25-00-0054-00A-931C-D – Summary 001 New 2014-12-19

B787-A-25-00-0054-00A-932A-D – PLANNING INFORMATION 001 New 2014-12-19

B787-A-25-00-0054-00A-934A-D – MATERIAL INFORMATION 001 New 2014-12-19

B787-A-25-00-0054-00A-933A-D – ACCOMPLISHMENT INSTRUCTIONS 001 New 2014-12-19

B787-A-25-00-0054-0AA-931D-D – Appendix A – CAPTAIN AND FIRST 001 New 2014-12-19

OFFICER SEAT ASSEMBLY TEST [Group 1:]

Applicable To: B787-A-25-00-0054-00A-00SA-D

Model 787 End of data module Issue 001, 19 Dec 2014

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Alert Service Bulletin B787-81205-SB250054-00

Summary

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

References

Reference Title

SB B787-A-25-00-0054-00A-932A-D Issue 001, Spares Affected

Paragraph 1.B.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Compliance

Paragraph 5.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Weight and Balance Changes

Paragraph 8.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Electrical Load Data

Paragraph 9.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Publications Affected

Paragraph 11.

SB B787-A-25-00-0054-00A-934A-D Issue 001, Kits/Parts

Paragraph 3.A.

SB B787-A-25-00-0054-00A-934A-D Issue 001, Parts and Materials Supplied by the Operator

Paragraph 3.B.

SB B787-A-25-00-0054-00A-934A-D Issue 001, Special Tooling Necessary to do this Service Bulletin

Paragraph 6.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Effectivity

Paragraph 1.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Manpower

Paragraph 7.

SB B787-A-25-00-0054-00A-934A-D Issue 001, Material - Price and Availability

Paragraph 1.

Applicable To: B787-A-25-00-0054-00A-931C-D

Model 787 Issue 001, 19 Dec 2014

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Description

Group 1:

1. CONCURRENT REQUIREMENTS

None.

2. BACKGROUND

This service bulletin gives instructions to replace the Captain and First Officer seat assembly and do a test

of the Captain and First Officer seat assembly as an interim action to prevent seat actuator clutch failure

resulting in loss of seat locking and un-commanded motion. If this service bulletin is not incorporated, the

Captain and First Officer seats may move un-commanded during operation which could lead to reduced

controllability of the airplane.

An operator reported that a Captain's seat moved un-commanded during landing rollout due to a failure in

the seat horizontal actuator. Investigation found press fit clutch pins in the actuator could migrate loose

when subjected to repeated dynamic impact loading from clutch re-engagement when the manual horizontal

control lever is released with the seat still moving on the tracks. The clutch pins can migrate loose, overturn,

and force clutch plate separation, resulting in degraded or failed seat locking. The new Captain and First

Officer seat assemblies installed by this service bulletin include new horizontal and vertical actuators which

incorporate design changes to the clutch mechanism to improve pin retention and prevent loss of locking

due to pin migration. This service bulletin also includes instructions to perform interim tests of Captain and

First Officer seat actuator clutch operation to prevent loss of seat locking and un-commanded motion prior

to installation of new Captain and First Officer seat assemblies incorporating the new actuators.

Boeing Service Related Problem (SRP) 787 SRP-25-0332 is related to this service bulletin.

This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.

Table 1 

Planning Data Affected Data Module Reference

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 1.B., Spares AffectedSpares Affected No

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 5., ComplianceAD Related Yes

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 8., Weight and Balance ChangesWeight and Balance Changed No

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 9., Electrical Load DataElectrical Load Changed No

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 11., Publications AffectedPublications Affected Yes

Data Module SB B787-A-25-00-0054-00A-932AD, Paragraph 11., Publications AffectedAirplane Flight Operations Affected (Flight Crew No

Operations Manual and/or FAA Approved Airplane Flight Manual)

Data Module SB B787-A-25-00-0054-00A-934AD, Paragraph 3.A., Kits/PartsKits/Parts Required No

Applicable To: B787-A-25-00-0054-00A-931C-D

Model 787 Issue 001, 19 Dec 2014

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AIRCRAFT SERVICE BULLETIN
Table 1 

Planning Data Affected Data Module Reference

Data Module SB B787-A-25-00-0054-00A-934AD, Paragraph 3.B., Parts and Materials Supplied

by the Operator

Operator Supplied Parts/Material Yes

Data Module SB B787-A-25-00-0054-00A-934AD, Paragraph 6., Special Tooling Necessary to

do this Service Bulletin

Special Tooling Required No

3. ACTION

(CN-AA46352D)

In the Flight Compartment, replace the Captain and First Officer Seat Assembly as a terminating action.

As an interim action, do a test of the Captain and First Officer Seat Assembly and replace the seat horizontal

or vertical actuator if necessary.

4. EFFECTIVITY

787-8 Airplanes. Refer to Data Module SB B787-A-25-00-0054-00A-932A-D, Paragraph 1., Effectivity for

the list of affected airplanes.

5. COMPLIANCE

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this

service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service

bulletin mandatory.

Refer to Data Module SB B787-A-25-00-0054-00A-932A-D, Paragraph 5., Compliance

6. INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are not available for the configuration changes given in this service bulletin.

7. MANPOWER

Refer to Data Module SB B787-A-25-00-0054-00A-932A-D, Paragraph 7., Manpower.

8. MATERIAL INFORMATION

Operator Supplied Parts/Materials.

Refer to Data Module SB B787-A-25-00-0054-00A-934A-D, Paragraph 1., Material - Price and Availability.

Applicable To: B787-A-25-00-0054-00A-931C-D

Model 787 Issue 001, 19 Dec 2014

See Applicability of this data module

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
ICN-B787-A-000061-A-81205-08859-A-01-1

Figure 1 

Applicable To: B787-A-25-00-0054-00A-931C-D

Model 787 End of data module Issue 001, 19 Dec 2014

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Alert Service Bulletin B787-81205-SB250054-00

PLANNING INFORMATION

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN PARAGRAPH 1., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED

Alert:

OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES

HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.

References

Reference Title

SB B787-A-25-00-0054-00A-933A-D Issue 001, Step 2. Work Instructions

787 AMM 25-11-01 CAPTAIN AND FIRST OFFICER SEAT

Description

Group 1:

1. Effectivity

A. Airplanes

This service bulletin is applicable to 787-8 Airplanes, line numbers 6-9, 11, 20-21, 23-125, 127-132,

134-138, 140-145, 147-168, 170-180, 182-201 and 203-209 in one Group. The Variable Numbers and

Group information for the applicable airplanes is given below. An equivalent change is on subsequent

production airplanes. Refer to CN-AA46352 for data about this change.

Table 1 

GROUP CONFIGURATION DESCRIPTION

787-8 airplanes with Ipeco Captain and First Officer seats (Part

Number 3A380-0007-01-6, 3A380-0008-01-6).

1 -

Airplane Models: 787-8

Table 2 

Variable Number Group

ZA006 1

ZA100-ZA105 1

ZA116-ZA124 1

ZA135-ZA139 1

ZA175-ZA189 1

ZA215-ZA221 1

Applicable To: B787-A-25-00-0054-00A-932A-D

Model 787 Issue 001, 19 Dec 2014

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AIRCRAFT SERVICE BULLETIN
Table 2 

Variable Number Group

ZA230-ZA246 1

ZA260-ZA268 1

ZA270-ZA275 1

ZA285-ZA295 1

ZA317-ZA322 1

ZA327 1

ZA334 1

ZA380-ZA389 1

ZA430-ZA437 1

ZA445-ZA448 1

ZA450-ZA457 1

ZA460-ZA475 1

ZA506-ZA516 1

ZA536-ZA543 1

ZA560-ZA565 1

ZA576-ZA580 1

ZA586 1

ZA588-ZA589 1

ZA610-ZA612 1

ZA650-ZA651 1

ZA655-ZA658 1

ZA680 1

ZA695 1

ZA778-ZA779 1

ZA841 1

B. Spares Affected

None.

2. Concurrent Requirements

None.

Applicable To: B787-A-25-00-0054-00A-932A-D

Model 787 Issue 001, 19 Dec 2014

See Applicability of this data module

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
3. Reason

This service bulletin gives instructions to replace the Captain and First Officer seat assembly and do a test

of the Captain and First Officer seat assembly as an interim action to prevent seat actuator clutch failure

resulting in loss of seat locking and un-commanded motion. If this service bulletin is not incorporated, the

Captain and First Officer seats may move un-commanded during operation which could lead to reduced

controllability of the airplane.

An operator reported that a Captain's seat moved un-commanded during landing rollout due to a failure in

the seat horizontal actuator. Investigation found press fit clutch pins in the actuator could migrate loose

when subjected to repeated dynamic impact loading from clutch re-engagement when the manual horizontal

control lever is released with the seat still moving on the tracks. The clutch pins can migrate loose, overturn,

and force clutch plate separation, resulting in degraded or failed seat locking. The new Captain and First

Officer seat assemblies installed by this service bulletin include new horizontal and vertical actuators which

incorporate design changes to the clutch mechanism to improve pin retention and prevent loss of locking

due to pin migration. This service bulletin also includes instructions to perform interim tests of Captain and

First Officer seat actuator clutch operation to prevent loss of seat locking and un-commanded motion prior

to installation of new Captain and First Officer seat assemblies incorporating the new actuators.

Boeing Service Related Problem (SRP) 787 SRP-25-0332 is related to this service bulletin.

4. Description

In the Flight Compartment, replace the Captain and First Officer Seat Assembly as a terminating action.

As an interim action, do a test of the Captain and First Officer Seat Assembly and replace the seat horizontal

or vertical actuator if necessary.

The work in this service bulletin is done in the maintenance zone(s) given below.

Table 3 

Affected Maintenance Zones

Model Zone

787-8 211, 212

5. Compliance

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this

service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service

bulletin mandatory.

Do the required actions in accordance with Data Module SB B787-A-25-00-0054-00A-933A-D, Step 2.,

Work 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.

Applicable To: B787-A-25-00-0054-00A-932A-D

Model 787 Issue 001, 19 Dec 2014

See Applicability of this data module

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B787-81205-SB250054-00

Issue 001, 19 Dec 2014

AIRCRAFT SERVICE BULLETIN
Table 4 INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST

Repeat Interval

(Not to Exceed)

Condition Action Compliance Time

Within 1000 flight hours -

after the Issue 001 date of

this service bulletin.

Do PART 1: INTERIM

ACTION: CAPTAIN SEAT

ASSEMBLY TEST*[1]

All airplanes

1000 flight hours OPTION 1: Repeat PART - *[2]

1: INTERIM ACTION:

CAPTAIN SEAT ASSEMBLY TEST

CONDITION 1: NORMAL

CLUTCH ENGAGING

FOUND

OPTION 2: Do PART 3: - -

TERMINATING ACTION:

CAPTAIN SEAT ASSEMBLY REPLACEMENT*[2]

OPTION 3 (ACTION 1): Before further flight. -

Do PART 2: CAPTAIN

SEAT HORIZONTAL OR

VERTICAL ACTUATOR

REPLACEMENT

CONDITION 2: NONNORMAL CLUTCH ENGAGING FOUND

1000 flight hours OPTION 3 (ACTION 2): - *[2]

Repeat PART 1: INTERIM

ACTION: CAPTAIN SEAT

ASSEMBLY TEST

OPTION 4: Do PART 3: - -

TERMINATING ACTION:

CAPTAIN SEAT ASSEMBLY REPLACEMENT

*[1] Accomplishment of PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT can be done instead of PART

1: INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST.

*[2] Accomplishment of PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT is terminating action to the repeat

test in PART 1.

Applicable To: B787-A-25-00-0054-00A-932A-D

Model 787 Issue 001, 19 Dec 2014

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AIRCRAFT SERVICE BULLETIN
Table 5 INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST

Repeat Interval

(Not to Exceed)

Condition Action Compliance Time

Within 1000 flight hours -

after the Issue 001 date of

this service bulletin.

Do PART 4: INTERIM

ACTION: FIRST OFFICER

SEAT ASSEMBLY

TEST*[1]

All airplanes

1000 flight hours OPTION 5: Repeat PART - *[2]

4: INTERIM ACTION:

FIRST OFFICER SEAT

ASSEMBLY TEST

CONDITION 1: NORMAL

CLUTCH ENGAGING

FOUND

OPTION 6: Do PART 6: - -

TERMINATING ACTION:

FIRST OFFICER SEAT

ASSEMBLY REPLACEMENT*[2]

OPTION 7 (ACTION 1): Before further flight. -

Do PART 5: FIRST OFFICER SEAT HORIZONTAL

OR VERTICAL ACTUATOR REPLACEMENT

CONDITION 2: NONNORMAL CLUTCH ENGAGING FOUND

1000 flight hours OPTION 7 (ACTION 2): - *[2]

Repeat PART 4: INTERIM

ACTION: FIRST OFFICER

SEAT ASSEMBLY TEST

OPTION 8: Do PART 6: - -

TERMINATING ACTION :

FIRST OFFICER SEAT

ASSEMBLY REPLACEMENT

*[1] Accomplishment of PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY REPLACEMENT can be done instead of

PART 4: INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST.

*[2] Accomplishment of PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY REPLACEMENT is terminating action to

the repeat test in PART 4.

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Table 6 TERMINATING ACTION: CAPTAIN AND FIRST OFFICER SEAT ASSEMBLY REPLACEMENT

Repeat Interval

(Not to Exceed)

Condition Action Compliance Time

Within 72 months after the -

Issue 001 date of this service bulletin.

Do PART 3: TERMINATING ACTION: CAPTAIN

SEAT ASSEMBLY REPLACEMENT

All airplanes

Within 72 months after the -

Issue 001 date of this service bulletin.

Do PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY

REPLACEMENT

6. 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

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.

7. Manpower

Table 7 INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST

Number of Per- Task Hours Elapsed Hours

sons

Task

Part 1 1 0.75 0.75

Part 2 *[1] *[1] *[1]

TOTAL FOR EACH AIRPLANE 0.75 0.75

*[1] No time provided for this task. Refer to Ipeco Service Bulletin 380-25-04.

Table 8 INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST

Number of Per- Task Hours Elapsed Hours

sons

Task

Part 4 1 0.75 0.75

Part 5 *[1] *[1] *[1]

TOTAL FOR EACH AIRPLANE 0.75 0.75

*[1] No time provided for this task. Refer to Ipeco Service Bulletin 380-25-04.

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Table 9 TERMINATING ACTION: CAPTAIN AND FIRST OFFICER SEAT 

ASSEMBLY REPLACEMENT

Number of Per- Task Hours Elapsed Hours

sons

Task

Part 3 2 1.50 0.75

Part 6 2 1.50 0.75

TOTAL FOR EACH AIRPLANE 3.00 1.50

The time to make the change to the in accordance with Ipeco Service Bulletin 380-25-04 is not included.

8. Weight and Balance Changes

None.

9. Electrical Load Data

Not changed.

10. References

A. Existing Data:

1. Change Notice CN-AA46352D

2. Aircraft Maintenance Manual (AMM) 787 AMM 25-11-01

3. Boeing Service Related Problem (SRP) 787 SRP-25-0332

4. Ipeco Service Bulletin 380-25-04

B. Data Supplied with this Service Bulletin:

None.

C. Installation Requirement Modules Used in the Preparation of this Service Bulletin:

None.

11. Publications Affected

Table 10 

Publication Chapter-Section

787 Illustrated Parts Data ZA2-11

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.

12. Interchangeability and Intermixability of Parts

Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.

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13. Software Accomplishment Summary

Not Affected.

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Alert Service Bulletin B787-81205-SB250054-00

MATERIAL INFORMATION

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

References

Reference Title

SB B787-A-25-00-0054-00A-932A-D Issue 001, References

Paragraph 10.

Description

Group 1:

1. Material - Price and Availability

The operator can supply the parts and materials shown in Paragraph 3., Parts Necessary for Each Airplane

. Refer to Ipeco Service Bulletin 380-25-04.

2. Industry Support Information

Boeing warranty remedies are not available for the configuration changes given in this service bulletin.

3. Parts Necessary for Each Airplane

A. Kits/Parts:

None.

B. Parts and Materials Supplied by the Operator:

Table 1 

Part Number / QTY Name Existing Part Number Notes

Specification

3A380-0007-01-7 1 Captain Seat Assembly 3A380-0007-01-6 *[1] *[2]

3A380-0008-01-7 1 First Officer Seat Assembly 3A380-0008-01-6 *[1] *[2]

*[1] New part or make a change to the existing part in accordance with Ipeco Service Bulletin 380-25-04

*[2] Refer to Ipeco Service Bulletin 380-25-04 for instructions to return the existing parts for modification and to get new part.

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C. Parts Modified and Reidentified:

Table 2 

Existing Part QTY Name New Part Number Notes

Number

3A380-0007-01-6 1 Captain Seat Assembly 3A380-0007-01-7 *[1]

First Officer Seat As- 3A380-0008-01-7 *[1]

sembly

3A380-0008-01-6 1

*[1] Make the change in accordance with Ipeco Service Bulletin 380-25-04.

D. Parts Removed and Not Replaced:

None.

4. Parts Necessary to Change Spares

None.

5. Special Tooling - Price and Availability

None.

6. Special Tooling Necessary to do this Service Bulletin

No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance and

overhaul tools in the manuals given in Data Module SB B787-A-25-00-0054-00A-932A-D, Paragraph 10.,

References, can be necessary. Examine operator tool supply to make sure all necessary tools are available.

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Alert Service Bulletin B787-81205-SB250054-00

ACCOMPLISHMENT INSTRUCTIONS

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

References

Reference Title

SB B787-A-25-00-0054-00A-932A-D Issue 001, References

Paragraph 10.

SB B787-A-25-00-0054-00A-932A-D Issue 001, Compliance

Paragraph 5.

Alert Service Bulletin

B787-81205-SB250054-00 – Appendix A – CAPTAIN

SB B787-A-25-00-0054-0AA-931D-D Issue 001

AND FIRST OFFICER SEAT ASSEMBLY TEST

[Group 1:]

787 AMM 25-11-01 CAPTAIN AND FIRST OFFICER SEAT

Procedure

Group 1:

1. GENERAL INFORMATION

CAUTION: 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.

NOTE: 1. Manual titles are referred to by acronyms. Refer to Data Module SB B787-A-25-00-0054-00A932A-D, Paragraph 10., References, for definition of the acronyms.

2. Obey all of the warnings and cautions given in the specified manual sections.

3. 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

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– Hole dimensions for standard solid rivets and fasteners are in SRM Chapter 51

– Torque Values:

– Values for structural fasteners are given in 787 Structural Repair Manual, Chapter 51.

– Values for airframe maintenance tasks are included in Chapter 20 of 787 Aircraft Maintenance Manual (AMM).

– Values for electrical maintenance tasks are included in Chapter 20 of Standard Wiring

Practices Manual (SWPM).

– Values for engine maintenance tasks are included in Chapter 70 of 787 Aircraft Maintenance Manual (AMM).

– Non-standard torque values for maintenance tasks are included in the applicable installation step.

4. 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.

5. 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.

6. Where the work instructions include installation of a kept part, a new or serviceable part with

the same part number can be installed as an alternative to the kept part.

7. This service bulletin includes functional test procedures for the systems changed by this service

bulletin. More functional tests can possibly be necessary in accordance with standard maintenance practices because of interruption to other airplane systems.

8. If shading is used, shaded areas in Tasks are to separate the non-critical and non-authoritative

information from the critical and authoritative information.

9. Use of colors in Tasks is based on guidance from the S1000D International specification for

technical publications.

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 Step 2., Work Instructions are in Data Module SB B787-

A-25-00-0054-00A-932A-D, Paragraph 5., Compliance.

12. Some steps in the Work Instructions are identified as Required for Compliance (RC). If this

service bulletin is mandated by an Airworthiness Directive (AD), then the steps identified as RC

must be done to comply with the AD. Alternative procedures for steps not identified with RC can

be used if the RC steps can still be done as specified, and the airplane can be put back in a

serviceable condition. An Alternative Method of Compliance (AMOC) is not necessary for deviations to steps that are not identified as RC.

2. WORK INSTRUCTIONS

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A. Do the INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST or TERMINATING ACTION: CAPTAIN

SEAT ASSEMBLY REPLACEMENT.

(1) INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST

(a) RC - Do PART 1: INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST.

1) CONDITION 1: NORMAL CLUTCH ENGAGING FOUND.

a) OPTION 1: Repeat PART 1: INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST.

b) OPTION 2: Do PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT to terminate the repeat test.

2) CONDITION 2: NON-NORMAL CLUTCH ENGAGING FOUND.

a) OPTION 3:

<1> OPTION 3 (ACTION 1): Do PART 2: CAPTAIN SEAT HORIZONTAL OR VERTICAL

ACTUATOR REPLACEMENT.

<2> OPTION 3 (ACTION 2): Repeat PART 1: INTERIM ACTION: CAPTAIN SEAT

ASSEMBLY TEST.

b) OPTION 4: Do PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT to terminate the repeat test.

(2) TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT

(a) RC - Do PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT.

B. Do the INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST or TERMINATING ACTION: FIRST

OFFICER SEAT ASSEMBLY REPLACEMENT.

(1) INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST

(a) RC - Do PART 4: INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST.

1) CONDITION 1: NORMAL CLUTCH ENGAGING FOUND.

a) OPTION 5: Repeat PART 4: INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY

TEST

b) OPTION 6: Do PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY

REPLACEMENT to terminate the repeat test.

2) CONDITION 2: NON-NORMAL CLUTCH ENGAGING FOUND.

a) OPTION 3:

<1> OPTION 7 (ACTION 1): Do PART 5: FIRST OFFICER SEAT HORIZONTAL OR

VERTICAL ACTUATOR REPLACEMENT.

<2> OPTION 7 (ACTION 2): Repeat PART 4: INTERIM ACTION: FIRST OFFICER

SEAT ASSEMBLY TEST.

b) OPTION 8: Do PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY

REPLACEMENT to terminate the repeat test.

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(2) TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY REPLACEMENT

(a) RC - Do PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY REPLACEMENT.

C. Put the airplane back to a serviceable condition.

D. PART 1: INTERIM ACTION: CAPTAIN SEAT ASSEMBLY TEST

(1) RC - Do a test of the Captain seat assembly in accordance with CAPTAIN SEAT AND FIRST OFFICER SEAT ASSEMBLY TEST in Data Module Appendix A, SB B787-A-25-00-0054-0AA-931D-D.

E. PART 2: CAPTAIN SEAT HORIZONTAL OR VERTICAL ACTUATOR REPLACEMENT

(1) Replace the captain seat horizontal or vertical actuator. Refer to Ipeco Component Maintenance

Manual 25-11-69 as an accepted procedure.

F. PART 3: TERMINATING ACTION: CAPTAIN SEAT ASSEMBLY REPLACEMENT

(1) Remove the Captain Seat Assembly part number 3A380-0007-01-6. Refer to 787 AMM 25-11-01

as an accepted procedure.

(2) RC - Install the Captain Seat Assembly part number 3A380-0007-01-7. Refer to 787 AMM 25-11-01

as an accepted procedure.

(3) Operate the seat to make sure that it will move freely in the seat tracks and is correctly calibrated.

Refer to 787 AMM 25-11-01 as an accepted procedure.

G. PART 4: INTERIM ACTION: FIRST OFFICER SEAT ASSEMBLY TEST

(1) RC - Do a test of the First Officer seat assembly in accordance with CAPTAIN SEAT AND FIRST

OFFICER SEAT ASSEMBLY TEST in Data Module Appendix A, SB B787-A-25-00-0054-0AA-931DD.

H. PART 5: FIRST OFFICER SEAT HORIZONTAL OR VERTICAL ACTUATOR REPLACEMENT

(1) Replace the First Officer seat horizontal or vertical actuator. Refer to Ipeco Component Maintenance

Manual 25-11-69 as an accepted procedure.

I. PART 6: TERMINATING ACTION: FIRST OFFICER SEAT ASSEMBLY REPLACEMENT

(1) Remove the First Officer Seat Assembly part number 3A380-0008-01-6. Refer to 787 AMM 25-11-

01 as an accepted procedure.

(2) RC - Install the new First Officer Seat Assembly part number 3A380-0008-01-7. Refer to 787 AMM

25-11-01 as an accepted procedure.

(3) Operate the seat to make sure that it will move freely in the seat tracks and is correctly calibrated.

Refer to 787 AMM 25-11-01 as an accepted procedure.

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Alert Service Bulletin B787-81205-SB250054-00

Appendix A – CAPTAIN AND FIRST OFFICER SEAT ASSEMBLY TEST

[Group 1:]

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE

AIRPLANES SHOWN IN DATA MODULE SB B787-A-25-00-0054-00A-932A-D, PARAGRAPH 1.,

Alert:

EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN

TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE

BULLETIN TO THE NEW OWNER.

Procedure

Group 1:

1. The following tests are to be carried out with the seat occupied and in a locked position.

A. Horizontal Movement Test

Operate the seat through its full range of horizontal movement to make sure that the seat can move fully

and freely between the stops and locks in all positions. If necessary, adjust the seat track alignment.

Refer to IPECO Component Maintenance Manual 25-11-69 as an accepted procedure.

NOTE: INCORRECT ADJUSTMENT OF THE MANUAL OVERRIDE CABLE MAY RESULT IN UNCOMMANDED MOVEMENT OF THE SEAT UNDER LOAD, DAMAGE AND/OR FAILURE OF THE

HORIZONTAL ACTUATOR. 

NOTE: WHEN THE SEAT IS BEING ADJUSTED MANUALLY, ENSURE THE SEAT IS STOPPED

BEFORE RELEASING THE MANUAL CONTROL LEVER. 

B. Horizontal Actuator Manual Override Lever Test

(1) Adjust the seat height to the lowest vertical position. Refer to IPECO Component Maintenance

Manual 25-11-69 as an accepted procedure.

(2) Operate the manual override lever and measure for excessive free play (more than 0.13 inch free

play measured at tip of lever)

NOTE: Excessive lever free play may be due to a control cable that is out of adjustment, or may

indicate the actuator clutch is only partially engaging. 

(a) If excessive free play is found, adjust the cable as follows (see Detail A illustration below):

1) Loosen the horizontal actuator manual override cable lock nut.

2) Move the cable adjustment nut until there is a free play of 0.06 - 0.13 inch in the horizontal

lever.

3) Tighten the manual override cable lock nut.

4) Make sure that there is free movement in the horizontal lever and readjust until there is free

movement.

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5) Operate the horizontal lever and make sure that the horizontal lever moves smoothly back

to its original position when released. If the lever does not move smoothly, the seat has the

non-normal clutch engaging.

(b) If normal free play is found (0.06 - 0.13 inch), operate the horizontal lever and make sure that

the horizontal lever moves smoothly back to its original position when released. If the lever does

not move smoothly, the seat has the non-normal clutch engaging.

C. Vertical Movement Test

Operate the seat through its full range of vertical movement to make sure that the seat can move fully

and freely between the stops and locks in all positions. If necessary, remove obstruction or replace

braided rubber cords. Refer to IPECO Component Maintenance Manual 25-11-69 as an accepted procedure.

NOTE: INCORRECT ADJUSTMENT OF THE MANUAL OVERRIDE CABLE MAY RESULT IN UNCOMMANDED MOVEMENT OF THE SEAT UNDER LOAD, DAMAGE AND/OR FAILURE OF THE

VERTICAL ACTUATOR. 

NOTE: WHEN THE SEAT IS BEING ADJUSTED MANUALLY, ENSURE THE SEAT IS STOPPED

BEFORE RELEASING THE MANUAL CONTROL LEVER. 

D. Vertical Actuator Manual Override Lever Test

(1) Adjust the seat height to the lowest vertical position. Refer to IPECO Component Maintenance

Manual 25-11-69 as an accepted procedure.

(2) Operate the manual override lever and measure for excessive free play (more than 0.13 inch free

play measured at tip of lever).

NOTE: Excessive lever free play may be due to a control cable that is out of adjustment, or may

indicate the actuator clutch is only partially engaging. 

(a) If excessive free play is found, adjust the cable as follows (see Detail B illustration below):

1) Loosen the vertical actuator manual override cable lock nut.

2) Move the cable adjustment nut until there is a free play of 0.06 - 0.13 inch in the vertical

lever.

3) Tighten the manual override cable lock nut.

4) Make sure that there is free movement in the vertical lever and readjust until there is free

movement.

5) Operate the vertical lever and make sure that the vertical lever moves smoothly back to its

original position when released. If the lever does not move smoothly, the seat has the nonnormal clutch engaging.

(b) If normal free play is found (0.06 - 0.13 inch), operate the vertical lever and make sure that the

vertical lever moves smoothly back to its original position when released. If the lever does not

move smoothly, the seat has the non-normal clutch engaging.

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ICN-B787-A-000061-A-81205-08860-A-01-1

Figure 1 

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ICN-B787-A-000061-A-81205-08861-A-01-1

Figure 2 

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ICN-B787-A-000061-A-81205-08862-A-01-1

Figure 3 

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