Commercial 

Airplanes 777

Service Bulletin

ALERT

Number: 777-22A0024

Original Issue: January 22, 2010

ATA System: 2211

SUBJECT: AUTOFLIGHT - Autopilot Flight Director System - Install Autopilot Flight Director

Computer Operational Program Software

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

CFR 730-774). 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 © 2010 The Boeing Company

Unpublished Work - All Rights Reserved

Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable

subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.

This document includes proprietary information owned by The Boeing Company and/or one or more third parties.

Treatment of the document and the information it contains is governed by contract with Boeing. For more

information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.

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, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the

Boeing livery 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 PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

1 of 17

3.0
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

2 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT

BLANK PAGE
Table of Contents

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

1. PLANNING INFORMATION ........................................ 7

A. Effectivity ................................................ 7

1. Airplanes ............................................. 7

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1. Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2. Data supplied with this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3. Installation Drawings Used in the Preparation of this Service Bulletin . . . . . . . . . . . . 13

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 15

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 16

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

3 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

4 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT

BLANK PAGE
Commercial 

Airplanes 777

Service Bulletin

ALERT

Summary Number: 777-22A0024

Original Issue: January 22, 2010

ATA System: 2211

SUBJECT: AUTOFLIGHT - Autopilot Flight Director System - Install Autopilot Flight Director

Computer Operational Program Software

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 the part number and installation instructions for the new Operational Program Software

(OPS) for the Autopilot Flight Director Computer (AFDC). The new software changes the autopilot engagement

logic to make sure the flight crew will not engage the autopilot by mistake prior to the takeoff roll. The new

software also improves Autopilot/Flight Director performance during performance limited go-arounds with one

engine inoperative. The consequence for not incorporating this service bulletin is that airlines may experience

inadvertent engagement of autopilot leading to rejected take-off and a lower climb gradient than is optimal for

obstacle clearance during performance limited go-arounds.

Since 1995 there have been nine reported instances of a rejected takeoff because of higher than normal control

column forces at takeoff rotation due to the pilot inadvertently engaging the autopilot in lower-speed takeoff roll.

When the flight crew inadvertently engages the autopilot on ground during the lower-speed phase of the takeoff

roll, the control column forces will be higher than normal when the pilot attempts to initiate the takeoff rotation.

This can result in a rejected takeoff at rotation speed and a consequent possibility of a runway overrun. The

new software will disengage the autopilot whenever the flaps are extended and the airplane is on the ground

and not in rollout mode. The autopilot is inhibited when the flaps are extended and the airplane is on the ground

or below 50 feet Above Ground Level (AGL). The autopilot is not inhibited if the radio altimeter or Flap Slat

Electronic Unit (FSEU) data is invalid.

Boeing discovered during flight simulations the climb gradient is less than optimal for obstacle clearance during

a one-engine takeoff situation. The new software maintains the initial engine-out go-around pitch target for a

longer duration to minimize altitude loss during the go-around. It also targets a velocity to maximize climbout

performance.

Boeing Service Related Problem (SRP) 777-SRP-22-0030 and 777-SRP-22-0031 are related to this service

bulletin.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

5 of 17
ACTION (PRR 62777-66S)

Install new AFDC OPS in the left, center, and right AFDCs.

NOTE: New AFDC OPS can only be installed in AFDC 822-0006-103, -104, or -105.

EFFECTIVITY

777-200, 777-200LR, 777-300, 777-300ER, and 777F Airplanes. Refer to Paragraph 1.A.1., Airplanes for the

list of affected airplanes.

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 12 months after the original

issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are available for airplanes in warranty as of December 04, 2008. Please refer to

Paragraph 2.B., Industry Support Information.

MANPOWER

Airplanes Total Task Hours Elapsed Hours

Group 1 1.50 1.50

MATERIAL INFORMATION

Operator Supplied Parts/Materials.

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

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

6 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
Commercial 

Airplanes 777

Service Bulletin

ALERT

Number: 777-22A0024

Original Issue: January 22, 2010

ATA System: 2211

SUBJECT: AUTOFLIGHT - Autopilot Flight Director System - Install Autopilot Flight Director

Computer Operational Program Software

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 Document D624W001 Part 3 for Airplane Variable Number, Line

Number, and Serial Number data.

This service bulletin is for the airplanes shown below. An equivalent change is on subsequent

production airplanes. Refer to PRR 62777-66S for data about this change.

GROUP CONFIGURATION DESCRIPTION

1 - 777-200/200LR/300/300ER/F

Airplane Models:

777-200, 777-200LR, 777-300, 777-300ER, 777F

Variable Number Group

WA001 - WA017 1

WA076 - WA080 1

WA086 - WA093 1

WA101 - WA104 1

WA116 - WA119 1

WA131 - WA137 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

7 of 17
Variable Number Group

WA171 - WA175 1

WA196 - WA198 1

WA206 - WA212 1

WA221 - WA223 1

WA231 - WA232 1

WA241 - WA250 1

WA261 - WA266 1

WA281 - WA283 1

WA301 - WA304 1

WB001 - WB021 1

WB031 - WB046 1

WB051 - WB088 1

WB101 - WB106 1

WB121 - WB125 1

WB131 - WB148 1

WB151 - WB155 1

WB161 - WB177 1

WB181 - WB194 1

WB201 - WB215 1

WB231 - WB247 1

WB271 - WB273 1

WB276 - WB286 1

WB291 - WB302 1

WB306 - WB307 1

WB311 - WB337 1

WB341 - WB342 1

WB366 - WB368 1

WB371 - WB388 1

WB406 1

WB411 - WB413 1

WB416 - WB439 1

WB446 - WB453 1

WB476 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

8 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
Variable Number Group

WB481 - WB484 1

WB501 - WB512 1

WB531 - WB537 1

WB551 - WB554 1

WB591 - WB597 1

WB601 - WB606 1

WB611 - WB622 1

WB631 - WB638 1

WB646 - WB649 1

WC051 - WC073 1

WC101 - WC104 1

WC111 - WC120 1

WC221 - WC222 1

WC241 - WC243 1

WC281 - WC290 1

WC301 - WC308 1

WC361 - WC364 1

WC371 - WC374 1

WC381 - WC395 1

WC441 1

WC446 - WC449 1

WC456 - WC459 1

WC486 - WC493 1

WC506 - WC508 1

WC521 - WC522 1

WC531 - WC536 1

WC546 - WC548 1

WC556 1

WC566 - WC567 1

WC571 - WC574 1

WD001 - WD002 1

WD011 - WD018 1

WD031 - WD036 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

9 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
Variable Number Group

WD046 - WD055 1

WD066 - WD073 1

WD081 - WD082 1

WD501 - WD512 1

WD521 - WD541 1

WD546 - WD554 1

WD561 - WD573 1

WD581 - WD599 1

WD606 - WD609 1

WD621 - WD632 1

WD651 - WD663 1

WD671 - WD675 1

WD691 - WD709 1

WD741 - WD752 1

WD761 - WD771 1

WD786 - WD788 1

WD796 - WD807 1

WD826 - WD834 1

WD846 - WD857 1

WD871 - WD877 1

WD911 - WD914 1

WD936 - WD939 1

WD946 - WD947 1

WD966 - WD969 1

WD981 - WD982 1

WF001 - WF003 1

WF016 - WF018 1

WF031 - WF032 1

WF046 1

WF076 - WF077 1

WF081 - WF082 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

10 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
2. Spares Affected

None.

B. Concurrent Requirements

None.

C. Reason

This service bulletin gives the part number and installation instructions for the new Operational Program

Software (OPS) for the Autopilot Flight Director Computer (AFDC). The new software changes the

autopilot engagement logic to make sure the flight crew will not engage the autopilot by mistake prior

to the takeoff roll. The new software also improves Autopilot/Flight Director performance during

performance limited go-arounds with one engine inoperative. The consequence for not incorporating

this service bulletin is that airlines may experience inadvertent engagement of autopilot leading to

rejected take-off and a lower climb gradient than is optimal for obstacle clearance during performance

limited go-arounds.

Since 1995 there have been nine reported instances of a rejected takeoff because of higher than normal

control column forces at takeoff rotation due to the pilot inadvertently engaging the autopilot in

lower-speed takeoff roll. When the flight crew inadvertently engages the autopilot on ground during the

lower-speed phase of the takeoff roll, the control column forces will be higher than normal when the

pilot attempts to initiate the takeoff rotation. This can result in a rejected takeoff at rotation speed and

a consequent possibility of a runway overrun. The new software will disengage the autopilot whenever

the flaps are extended and the airplane is on the ground and not in rollout mode. The autopilot is

inhibited when the flaps are extended and the airplane is on the ground or below 50 feet Above Ground

Level (AGL). The autopilot is not inhibited if the radio altimeter or Flap Slat Electronic Unit (FSEU) data

is invalid.

Boeing discovered during flight simulations the climb gradient is less than optimal for obstacle clearance

during a one-engine takeoff situation. The new software maintains the initial engine-out go-around pitch

target for a longer duration to minimize altitude loss during the go-around. It also targets a velocity to

maximize climbout performance.

Boeing Service Related Problem (SRP) 777-SRP-22-0030 and 777-SRP-22-0031 are related to this

service bulletin.

D. Description

Install new AFDC OPS in the left, center, and right AFDCs.

NOTE: New AFDC OPS can only be installed in AFDC 822-0006-103, -104, or -105.

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

Affected Maintenance Zones

Model Zone

777-200, 777-200LR, 777-300, 212

777-300ER, 777F

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

11 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
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 12 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 find the tools.

NOTE: This estimate gives general service bulletin incorporation time. The specific software data

transfer times can be found in 777 AMM 20-15-11.

Number of Per- Task Hours Elapsed Hours

sons

Task

Install Software 1 1.50 1.50

TOTAL FOR EACH AIRPLANE 1.50 1.50

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

12 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
J. References

1. Existing Data

a. Engineering Change Memo PRR 62777-66S

b. Service Related Problem (SRP) 777-SRP-22-0030, 777-SRP-22-0031

c. 777 Maintenance Manual (AMM) Subject 777 AMM 22-11-01, 777 AMM 20-15-11

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

777 Flight Crew Operations Manual Ch 4.20

777 Maintenance Manual 22-11

777 Fault Isolation Manual 22-11

777 Illustrated Parts Catalog 46-00, 46-01

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

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

information.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

13 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

14 of 17

BOEING SERVICE BULLETIN 777-22A0024

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 Rockwell Collins.

B. Industry Support Information

Boeing warranty remedies are available for 777 airplanes in warranty as of December 04, 2008. For

task hour and material reimbursement for airplanes in warranty as of that date, send a warranty claim

to Boeing Commercial Airplanes Group - Warranties.

C. Parts Necessary For Each Airplane

1. Kits/Parts

None.

2. Parts and Materials Supplied by the Operator

Media Set Part Num- Media Set Name Software Part Number Software Name Notes

ber

(a) (b) (c)

(d) (e) (f)

(g)

831-3215-111 22 AFDC OPS Disk Set 2276-COL-AA6-11 22 AFDC OPS

(a) This software part number is used in production. Operators may already have this media set.

(b) Do not install previous versions of this software after installation of the new software part number.

(c) Do not mix different part numbers of this software on the airplane. All AFDC must contain the new software.

(d) Install this software only if AFDC 822-0006-103, -104, or -105 is installed on the airplane.

(e) For 777 Passenger Models: The existing media set part number is 831-3215-109. The existing software

part number is 227C-COL-AA5-09.

(f) For 777 Freighter Models: The existing media set part number is 822-3215-510. The existing software

part number is 2277-COL-AA6-10.

(g) The media set must be obtained directly from the supplier: Rockwell Collins INC, 400 Collins Road NE,

Cedar Rapids, IA 52498-0001

3. Parts Modified and Reidentified

None.

4. Parts Removed and Not Replaced

None.

D. Parts Necessary to Change Spares

None.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

15 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT
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.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

16 of 17

BOEING SERVICE BULLETIN 777-22A0024

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. 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.

4. Refer to 777 AMM 20-15-11 for on-airplane software installation maintenance

practices and data transfer times, as accepted procedures.

B. WORK INSTRUCTIONS

1. Install the software shown below. Refer to 777 AMM 22-11-01 as an accepted procedure.

Software Name Software Part Number Media Set Part Number

22 AFDC OPS 2276-COL-AA6-11 831-3215-111

2. Put the airplane back to a serviceable condition.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 22, 2010

777-22A0024

17 of 17

BOEING SERVICE BULLETIN 777-22A0024

ALERT ALERT