Commercial 

Airplanes 737

Service Bulletin

ALERT

Number: 737-22A1215

Original Issue: November 22, 2013

ATA System: 2231

SUBJECT: AUTOFLIGHT - Autothrottle System - Autothrottle Computer 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 © 2013 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Unpublished Work.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: November 22, 2013

737-22A1215

1 of 22

4.0
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

2 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT

BLANK PAGE
Table of Contents

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

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

A. Effectivity ................................................ 9

1. Airplanes ............................................. 9

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2. Data Supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3. Installation Drawings Used in the Preparation of this Service Bulletin: . . . . . . . . . . . 16

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

M. Software Accomplishment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

C. Parts Necessary for Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 20

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

3 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

4 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT

BLANK PAGE
Commercial 

Airplanes 737

Service Bulletin

ALERT

Summary Number: 737-22A1215

Original Issue: November 22, 2013

ATA System: 2231

SUBJECT: AUTOFLIGHT - Autothrottle System - Autothrottle Computer Replacement

THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH

1.A., 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.

CONCURRENT REQUIREMENTS

None.

BACKGROUND

This service bulletin gives instructions to change the GE Autothrottle Computer. The new GE Autothrottle

Computer, part number 760SUE2-5, has new software installed. The new software will prevent a single erroneous

but valid radio altitude signal from causing the autothrottle to decrease thrust. A decrease in thrust could prevent

a continued safe flight and landing.

As a result of in-service incidents, it was found that an erroneous unflagged Radio Altimeter output would cause

the autothrottle to enter Landing Flare Retard mode prematurely on approach. If this change is not done, an

erroneous unflagged Radio Altimeter output on a manual or single channel autopilot approach could result in

premature Autothrottle Landing Flare Retard and the loss of automatic speed control.

Boeing Service Related Problem (SRP) 737NG-SRP-22-0032 is related to this service bulletin.

As a part of a service bulletin remote certification program, this change was completed on airplane YA104 by

Service Bulletin 737-22A1215 RC01 before the Original Issue of this service bulletin. The change completed on

airplane YA104 by Service Bulletin 737-22A1215 RC01 is equivalent to the Original Issue of this service bulletin.

Airplane YA104 has the configuration of a Group 1 airplane.

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

information.

Planning Data Affected Reference

Spares Affected Yes Paragraph 1.A.2., Spares Affected

AD Related Yes Paragraph 1.E., Compliance

Weight and Balance Change No Paragraph 1.H., Weight and Balance Changes

Electrical Load Changed No Paragraph 1.I., Electrical Load Data

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

5 of 22
Planning Data Affected Reference

Publications Affected Yes Paragraph 1.K., Publications Affected

Airplane Flight Operations Affected (Flight Crew No Paragraph 1.K., Publications Affected

Operations Manual and/or FAA Approved Airplane Flight Manual)

Kits/Parts Required No Paragraph 2.C.1., Kits/Parts

Paragraph 2.C.2., Parts and Materials Supplied

by the Operator

Operator Supplied Material Yes

Paragraph 2.F., Special Tooling Necessary to

do this Service Bulletin

Special Tooling Required No

ACTION (PRR 38275-168RS)

Get access to the main electronics compartment. At the E1-1 electronics shelf, change the Autothrottle Computer.

Do an operational test of the Autothrottle system.

EFFECTIVITY

737-600/-700/-700C/-800/-900 Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).

COMPLIANCE

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

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

mandatory.

Boeing recommends that the change given in this service bulletin be done within 36 months after the original

issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION

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

MANPOWER

Airplanes Total Task Hours Elapsed Hours

Group 1 1.00 1.00

MATERIAL INFORMATION

Operator Supplied Parts/Materials.

Refer to Paragraph 2.A., Material - Price and Availability

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

6 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

7 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

8 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT

BLANK PAGE
Commercial 

Airplanes 737

Service Bulletin

ALERT

Number: 737-22A1215

Original Issue: November 22, 2013

ATA System: 2231

SUBJECT: AUTOFLIGHT - Autothrottle System - Autothrottle Computer Replacement

THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH

1.A., 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.

1. PLANNING INFORMATION

A. Effectivity

1. Airplanes

Refer to Service Bulletin Index D6-19567 Part 3 for Airplane Variable Number, Line Number, and

Serial Number data.

This service bulletin is for the airplane(s) shown below. Refer to PRR 38275-168RS for data about

this change.

GROUP CONFIGURATION DESCRIPTION

737 Airplanes with GE Autothrottle Computer part number 760SUE1-1

or 760SUE2-2 or 760SUE2-3 or 760SUE2-4 or 10-62017-51 or

10-62017-52 or 10-62017-53 or 10-62017-54 installed

1 -

Airplane Models:

737-600, 737-700, 737-700C, 737-800, 737-900

Variable Number Group

YA001 - YA099 1

YA101 - YA128 1

YA201 - YA211 1

YA221 1

YA231 - YA242 1

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

9 of 22
Variable Number Group

YA251 - YA256 1

YA271 - YA272 1

YA291 1

YA301 - YA302 1

YA311 - YA314 1

YA321 - YA323 1

YA336 - YA345 1

YA351 1

YA356 - YA357 1

YA366 - YA367 1

YA371 1

YA501 - YA536 1

YA541 - YA552 1

YA571 - YA578 1

YA601 - YA615 1

YA621 - YA622 1

YA626 - YA629 1

YA635 - YA636 1

YA641 1

YA645 - YA650 1

YA656 - YA659 1

YA671 - YA672 1

YA681 - YA691 1

YA701 - YA708 1

YA721 - YA722 1

YA731 - YA734 1

YA751 - YA756 1

YA801 - YA803 1

YA809 1

YA811 - YA814 1

YA831 - YA835 1

YA841 - YA858 1

YA881 - YA882 1

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

10 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Variable Number Group

YA891 - YA892 1

YA961 - YA970 1

YB001 - YB006 1

YB101 - YB119 1

YB151 - YB153 1

YB161 - YB162 1

YB171 - YB172 1

YB181 - YB183 1

YB201 - YB207 1

YB271 1

YB276 1

YB301 - YB310 1

YB501 - YB502 1

YB521 1

YB551 1

YB561 - YB566 1

YB601 - YB605 1

YC001 - YC030 1

YC051 - YC082 1

YC091 - YC094 1

YC101 - YC104 1

YC111 - YC113 1

YC121 1

YC126 - YC127 1

YC136 - YC141 1

YC146 - YC147 1

YC151 - YC156 1

YC166 - YC169 1

YC171 1

YC176 - YC178 1

YC301 - YC304 1

YC321 - YC383 1

YC391 - YC392 1

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

11 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Variable Number Group

YC396 1

YC401 - YC417 1

YC421 - YC422 1

YC426 - YC428 1

YC436 - YC437 1

YC441 - YC448 1

YC451 - YC455 1

YC459 1

YC461 - YC467 1

YC471 - YC499 1

YC501 - YC526 1

YC571 - YC583 1

YC587 - YC589 1

YC591 - YC593 1

YC601 - YC655 1

YC681 - YC696 1

YC701 - YC715 1

YC720 - YC725 1

YC727 - YC741 1

YC751 - YC752 1

YC761 - YC770 1

YC781 - YC793 1

YC801 - YC892 1

YC901 - YC907 1

YC921 - YC922 1

YC931 - YC932 1

YC941 - YC951 1

YC971 - YC978 1

YC981 - YC983 1

YD001 - YD006 1

YD021 - YD025 1

YD041 - YD055 1

YD081 - YD084 1

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

12 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Variable Number Group

YD101 - YD107 1

YD121 - YD126 1

YD151 - YD155 1

YD171 - YD172 1

YD201 - YD203 1

YD206 - YD209 1

YD216 - YD217 1

YD251 - YD254 1

YD256 - YD257 1

YD301 - YD330 1

YD391 1

YD401 - YD410 1

YD481 - YD483 1

YD501 - YD507 1

YD531 - YD534 1

YD541 - YD547 1

YD601 - YD612 1

YE001 - YE020 1

YE051 1

YE101 - YE109 1

YE151 - YE157 1

YE171 - YE172 1

YE201 - YE204 1

YE301 - YE305 1

YG001 - YG044 1

YG061 - YG064 1

YG066 - YG089 1

YG201 1

YG501 - YG506 1

YG601 - YG602 1

YJ001 - YJ002 1

YJ471 - YJ479 1

YJ501 - YJ517 1

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

13 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Variable Number Group

YJ631 - YJ632 1

YJ671 - YJ676 1

YJ801 - YJ804 1

YJ871 1

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.

GE Part Number Boeing Part Number

760SUE1-1 10-62017-51

760SUE2-2 10-62017-52

760SUE2-3 10-62017-53

760SUE2-4 10-62017-54

B. Concurrent Requirements

None.

C. Reason

This service bulletin gives instructions to change the GE Autothrottle Computer. The new GE Autothrottle

Computer, part number 760SUE2-5, has new software installed. The new software will prevent a single

erroneous but valid radio altitude signal from causing the autothrottle to decrease thrust. A decrease

in thrust could prevent a continued safe flight and landing.

As a result of in-service incidents, it was found that an erroneous unflagged Radio Altimeter output

would cause the autothrottle to enter Landing Flare Retard mode prematurely on approach. If this

change is not done, an erroneous unflagged Radio Altimeter output on a manual or single channel

autopilot approach could result in premature Autothrottle Landing Flare Retard and the loss of automatic

speed control.

Boeing Service Related Problem (SRP) 737NG-SRP-22-0032 is related to this service bulletin.

As a part of a service bulletin remote certification program, this change was completed on airplane

YA104 by Service Bulletin 737-22A1215 RC01 before the Original Issue of this service bulletin. The

change completed on airplane YA104 by Service Bulletin 737-22A1215 RC01 is equivalent to the

Original Issue of this service bulletin. Airplane YA104 has the configuration of a Group 1 airplane.

D. Description

Get access to the main electronics compartment. At the E1-1 electronics shelf, change the Autothrottle

Computer.

Do an operational test of the Autothrottle system.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

14 of 22

BOEING SERVICE BULLETIN 737-22A1215

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

Affected Maintenance Zones

Model Zone

737-600, 737-700, 737-700C, 117

737-800, 737-900

E. Compliance

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

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

service bulletin mandatory.

Boeing recommends that the change given in this service bulletin be done within 36 months after the

original issue date of this service bulletin.

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

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.

G. Manpower

The table below shows an estimate of the task hours necessary to do this change 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.

Task Number of Persons Task Hours Elapsed Hours

Open Access 1 0.25 0.25

Change 1 0.25 0.25

Close Access 1 0.25 0.25

Test 1 0.25 0.25

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

15 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Task Number of Persons Task Hours Elapsed Hours

TOTAL FOR EACH AIRPLANE 1.00 1.00

The time to make the change to the Autothrottle Computer in accordance with General Electric Co SB

760SUE-22-1303 Service Bulletin is not included.

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

J. References

1. Existing Data:

a. Engineering Change Memo PRR 38275-168RS

b. Boeing Service Related Problem (SRP) 737NG-SRP-22-0032

c. Service Bulletin Index D6-19567

d. 737-600/700/800/900 Aircraft Maintenance Manual (AMM) 22-31-00, 22-31-10

e. General Electric Co Service Bulletin 760SUE-22-1268, 760SUE-22-1303

NOTE: The supplier was told to send copies of the 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:

Publication Chapter-Section

737 Illustrated Parts Catalog 22-31

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.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

16 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
L. Interchangeability and Intermixability of Parts

Refer to Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability

information.

M. Software Accomplishment Summary

Not affected.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

17 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

18 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT

BLANK PAGE
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. As an alternative, operators can purchase the parts from Boeing Spares. This service bulletin

does not show the Boeing price and supply data.

B. Industry Support Information

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

C. Parts Necessary for Each Airplane

1. Kits/Parts

None.

2. Parts and Materials Supplied by the Operator

Part Number / QTY Name Existing Part Number Notes

Specification

760SUE1-1 (Boeing p/n 10- (a) (c)

62017-51) or

760SUE2-5 (Boe- 1 AUTOTHROTTLE COMPUTER

ing p/n 10-62017-

55) 760SUE2-2 (Boeing p/n 10- (b) (c)

62017-52) or

760SUE2-3 (Boeing p/n 10- (b) (c)

62017-53) or

760SUE2-4 (Boeing p/n 10- (b) (c)

62017-54)

(a) General Electric Co SB 760SUE-22-1268 changes Autothrottle Computer part number 760SUE1-1 to

part number 760SUE2-2.

(b) You can get the new part by reworking the existing part as given in General Electric Co SB 760SUE22-1303.

(c) GE Aviation Systems LLC (35351), 3290 Patterson Avenue SE, Grand Rapids, MI 49512

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

19 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
3. Parts Modified and Reidentified

Existing Part Number QTY Name New Part Number Notes

760SUE2-5 (Boeing p/n 10-

62017-55)

AUTOTHROTTLE

COMPUTER

760SUE1-1 (Boeing p/n 10- 1

62017-51) or

760SUE2-2 (Boeing p/n 10-

62017-52) or

760SUE2-3 (Boeing p/n 10-

62017-53) or

760SUE2-4 (Boeing p/n 10-

62017-54)

4. Parts Removed and Not Replaced

None.

D. Parts Necessary to Change Spares

None.

E. Special Tooling - Price and Availability

None.

F. 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 Paragraph 1.J., References, can be necessary. Examine

operator tool supply to make sure all necessary tools are available.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

20 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
3. ACCOMPLISHMENT INSTRUCTIONS

A. 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 Paragraph 1.J., 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

– 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 737 Structural Repair Manual,

Chapter 51.

— Values for airframe maintenance tasks are included in Chapter 20 of 737

Airplane 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 737

Airplane 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. If shading is used, shaded areas in Figures are to separate the non-critical and

non-authoritative information from the critical and authoritative information.

7. The compliance times for the actions in Paragraph 3.B., WORK INSTRUCTIONS

are in Paragraph 1.E., Compliance.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

21 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT
B. WORK INSTRUCTIONS

1. Get access to the main electronics compartment and remove the Autothrottle Computer p/n

760SUE1-1 or 760SUE2-2 or 760SUE2-3 or 760SUE2-4 or 10-62017-51 or 10-62017-52 or

10-62017-53 or 10-62017-54 from the E1-1 electronics shelf. Refer to 737-600/700/800/900 AMM

22-31-10 as an accepted procedure.

2. Install a new or changed Autothrottle Computer p/n 760SUE2-5 at the E1-1 electronics shelf. Refer

to 737-600/700/800/900 AMM 22-31-10 as an accepted procedure.

NOTE: You can get the new part by reworking the existing part as given in General Electric Co

SB 760SUE-22-1303.

3. Do the operational test for the Autothrottle System. Refer to 737-600/700/800/900 AMM 22-31-00

as an accepted procedure.

4. Put the airplane back to a serviceable condition.

Export Controlled ECCN: 9E991 - BOEING

PROPRIETARY - Copyright © Unpublished

Work - See page 1 for details.

Original Issue: November 22, 2013

737-22A1215

22 of 22

BOEING SERVICE BULLETIN 737-22A1215

ALERT ALERT