Commercial 

Airplanes 757

Service Bulletin

ALERT

Number: 757-27A0153

Original Issue: May 09, 2012

Revision 1: October 29, 2012

ATA System: 2721

SUBJECT: FLIGHT CONTROL - Rudder and Rudder Trim Control System - Rudder Pedal Pushrod

Bolt Replacement

Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15

CFR 300-774). An export license may be required before it is used for development, production or use by foreign

persons from specific countries. The controller of this data has the individual responsibility to abide by all export

laws.

ECCN: 9E991

BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET

Copyright © 2012 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Unpublished Work.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, DreamlinerTM,

BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, 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. BOEING is a trademark of Boeing Management

Company.

Original Issue: May 09, 2012

Revision 1: October 29, 2012 757-27A0153

1 of 5

3.0
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: May 09, 2012

Revision 1: October 29, 2012 757-27A0153

2 of 5

BOEING SERVICE BULLETIN 757-27A0153

ALERT ALERT

BLANK PAGE
Commercial 

Airplanes 757

Service Bulletin

ALERT

Short Form Revision Number: 757-27A0153

Original Issue: May 09, 2012

Revision 1: October 29, 2012

ATA System: 2721

SUBJECT: FLIGHT CONTROL - Rudder and Rudder Trim Control System - Rudder Pedal Pushrod

Bolt Replacement

Revision 1 is sent to change information. Only the changed information is described below. The Original Issue

and Revision 1 are necessary to do the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION

No more work is necessary on the airplanes changed in accordance with the original issue of this service bulletin.

However, Boeing would like to make operators aware of some incorrectly specified washer part numbers in an

earlier release of Top Kit 012N8932-21. Washer Part Numbers "NAS1149D0416J", "NAS1149D0432J" and

"NAS1149D0463J" had smaller diameter holes in them than was necessary, and thus it was not possible to

install them. Boeing subsequently replaced them with washer part numbers "NAS1149D0516J", "NAS1149D0532J"

and "NAS1149D0563J" in the later release of Top Kit 012N8932-21. A freeze on the earlier release of the Top

kit was initiated by Boeing to prevent operators receiving the kit. But, if any operator installed incorrect part

number washers, Boeing recommends that they are replaced with correct Washer P/N's in accordance with

Figure 2 of this Service Bulletin Revision at the next convenient maintenance opportunity.

REASON FOR REVISION

This revision is sent to correct some washers that were specified in Top Kit 012N8932-21 and to add instructions

to remove the rudder pedal housing assembly covers to get better access for the detailed inspection in the work

instructions. In addition, information related to the validation of this service bulletin on airplane variable number

NT743 has been added.

The data given in Information Notice 757-27A0153 IN 01 is included in this revision.

REVISION HISTORY

Original Issue: May 09, 2012

Revision 1: October 29, 2012

EFFECTIVITY

All 757-200/200CB/200PF/300 Airplanes. Refer to Paragraph 1.A.1., Airplanes, in the original issue for the list

of affected airplanes.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: May 09, 2012

Revision 1: October 29, 2012 757-27A0153

3 of 5
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.

EXISTING INFORMATION

The following is the existing information in the service bulletin:

1. In Summary - Background - Currently there is no validation information which was completed on airplane

variable number NT743.

2. In Paragraph 1.C., Reason - Currently there is no validation information which was completed on

airplane variable number NT743.

3. In paragraph 2.C.1., Kits/Parts - Top Kit 012N8932-21: The table information reads:

Kit 012N8932

Existing Part Num- Notes

ber

New Part Number QTY Name

-21

NAS1149D0416J 4 WASHER (b)

NAS1149D0432J 4 WASHER (b)

NAS1149D0463J 4 WASHER (b)

(b) There are more parts than are necessary.

4. In Paragraph 3.B., Work Instructions - Currently the work instructions do not specify to remove and

install the captain and the first officer's rudder pedal housing assembly cover for access.

5. In Figure 2, Step 1, the existing washers part numbers are "NAS1149D0416J", "NAS1149D0432J" and

"NAS1149D0463J".

CHANGED INFORMATION

The following is the changed information in the service bulletin:

1. In Summary - Background - A new paragraph is added that reads:

"As a part of a service bulletin validation program, this change was completed on airplane NT743 by

Service Bulletin 757-27A0153 Original Issue. The change completed on airplane NT743 by Service

Bulletin 757-27A0153 Original Issue is equivalent to the release of Revision 1 of this service bulletin.

Airplane NT743 has the configuration of a Group 1 airplane".

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: May 09, 2012

Revision 1: October 29, 2012 757-27A0153

4 of 5

BOEING SERVICE BULLETIN 757-27A0153

ALERT ALERT
2. In Paragraph 1.C., Reason - A new paragraph is added that reads:

"As a part of a service bulletin validation program, this change was completed on airplane NT743 by

Service Bulletin 757-27A0153 Original Issue. The change completed on airplane NT743 by Service

Bulletin 757-27A0153 Original Issue is equivalent to the release of Revision 1 of this service bulletin.

Airplane NT743 has the configuration of a Group 1 airplane".

3. In paragraph 2.C.1., Kits/Parts - Top Kit 012N8932-21: The table now reads:

Kit 012N8932

Existing Part Num- Notes

ber

New Part Number QTY Name

-21

NAS1149D0516J 4 WASHER (b)

NAS1149D0532J 4 WASHER (b)

NAS1149D0563J 4 WASHER (b)

(b) There are more parts than are necessary.

4. In Paragraph 3.B., Work Instructions - A new step is added after the existing step 6 (page 26) which

reads:

If necessary, to get better access, remove the captain and the first officer's rudder pedal housing

assembly cover. Refer to 757 AMM 27-21-02 for an accepted procedure.

5. In Paragraph 3.B., Work Instructions, Condition 1 - A new step is added after the existing step 1 (page

27) which reads:

If removed, install the captain and the first officer's rudder pedal housing assembly cover. Refer to 757

AMM 27-21-02 for an accepted procedure.

6. In Figure 2, Step 1, the changed washers part numbers are "NAS1149D0516J", "NAS1149D0532J"

and "NAS1149D0563J".

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: May 09, 2012

Revision 1: October 29, 2012 757-27A0153

5 of 5

BOEING SERVICE BULLETIN 757-27A0153

ALERT ALERT