Commercial 

Airplanes 777

Service Bulletin

SPECIAL ATTENTION

Number: 777-31-0177

Original Issue: September 23, 2010

ATA System: 3100

SUBJECT: INDICATING/RECORDING SYSTEMS - Airplane Information Management System -

Aero Engine Data Base Software Upgrade

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ECCN: 9E991

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Copyright © 2010 The Boeing Company

Unpublished Work - All Rights Reserved

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BOEING SERVICE BULLETIN 777-31-0177

BLANK PAGE
Table of Contents

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

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

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

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

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1. Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. Data supplied with this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3. Installation Drawings Used in the Preparation of this Service Bulletin . . . . . . . . . . . . 15

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 17

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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

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

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

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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BLANK PAGE
Commercial 

Airplanes 777

Service Bulletin

SPECIAL ATTENTION

Summary Number: 777-31-0177

Original Issue: September 23, 2010

ATA System: 3100

SUBJECT: INDICATING/RECORDING SYSTEMS - Airplane Information Management System -

Aero Engine Data Base Software Upgrade

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

CONCURRENT REQUIREMENTS

Refer to Paragraph 1.B., Concurrent Requirements.

BACKGROUND

This service bulletin gives instructions to install the Aero-Engine Database (AEDB) software upgrade in the

Airplane Information Management System (AIMS) hardware. The revised AEDB is required to be installed on

777 aircraft prior or concurrent with incorporation of the redesigned IP8 bleed screen through Boeing service

bulletin 777-75A0002. For airplanes with the Trent 800 engine model, the AEDB software upgrade will limit the

takeoff powersetting target so that it stays above the fan flutter lower keep-out zone. For airplanes with other

engine types, the AEDB software upgrade will help operators to maintain part number commonality across their

777 fleet.

Rolls Royce has identified an area of operation where the Trent 800 engine can be exposed to potential fan

flutter with certain combinations of high takeoff thrust derate and additional Assumed Temperature Method

(ATM) thrust reduction. A review of in-service data has shown that there have been no takeoffs in the fan flutter

sensitive region. However, the installation of the redesigned IP8 bleed exhaust screens through Boeing service

bulletin 777-75A0002 may increase the exposure to fan flutter.

The intent of this change is to increase the Minimum Power Setting Parameter (min PSP) to prevent displaying

a takeoff target Engine Pressure Ratio (EPR) inside the region critical to fan flutter. The min PSP is a constant

that resides in the Airplane Flight Manual - Digital Performance Information (AFM-DPI) and the AEDB portion

of the Flight Management Computer (FMC). This AEDB update increases the value of the min PSP from 1.100

to 1.170.

Prior to the incorporation of Boeing service bulletin 777-75A0002, the revised AEDB provided by this service

bulletin may be used with the operating limitations and airplane preformance limits given in either the current

Airplane Flight Manual (AFM) or the revised AFM.

Boeing Service Related Problem (SRP) 777-SRP-78-0052 is related to this service bulletin.

ACTION (PRR 62777-73S)

Install the AEDB software in the AIMS hardware.

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EFFECTIVITY

777-200/200LR/300/300ER, 777F Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

COMPLIANCE

Boeing recommends that the change given in this service bulletin be done within three years after the original

issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are available for airplanes in warranty as of December 8, 2004. Please refer to

Paragraph 2.B., Industry Support Information.

MANPOWER

Airplanes Total Task Hours Elapsed Hours

Group 1-3 1.0 1.0

MATERIAL INFORMATION

Operator Supplied Parts/Materials.

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

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BOEING SERVICE BULLETIN 777-31-0177
Commercial 

Airplanes 777

Service Bulletin

SPECIAL ATTENTION

Number: 777-31-0177

Original Issue: September 23, 2010

ATA System: 3100

SUBJECT: INDICATING/RECORDING SYSTEMS - Airplane Information Management System -

Aero Engine Data Base Software Upgrade

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

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 62777-73S for data about this change.

GROUP CONFIGURATION DESCRIPTION

Airplanes with AIMS-1 hardware and different concurrent

requirements.

1 -

Airplanes with AIMS-2 hardware and different concurrent

requirements.

2 -

3 - Airplanes with AIMS-2 hardware and no concurrent requirements.

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

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Variable Number Group

WA116 - WA119 1

WA131 - WA137 1

WA171 - WA175 1

WA196 - WA198 1

WA206 - WA212 1

WA221 - WA223 1

WA231 - WA232 1

WA241 - WA250 1

WA261 - WA266 1

WA281 1

WA282 - WA283 2

WA301 - WA304 2

WB001 - WB021 1

WB031 - WB046 1

WB051 - WB088 1

WB101 - WB106 1

WB121 - WB125 1

WB131 - WB139 1

WB140 - WB148 2

WB151 - WB155 1

WB161 - WB175 1

WB176 - WB177 2

WB181 - WB192 1

WB193 - WB194 2

WB201 - WB214 1

WB215 2

WB231 - WB247 1

WB271 - WB273 1

WB276 - WB286 1

WB291 - WB302 1

WB306 - WB307 1

WB311 - WB337 1

WB341 - WB342 1

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BOEING SERVICE BULLETIN 777-31-0177
Variable Number Group

WB366 - WB367 1

WB368 2

WB371 - WB388 1

WB406 1

WB411 - WB413 1

WB416 - WB437 1

WB438 - WB439 2

WB446 - WB453 1

WB476 1

WB481 - WB484 1

WB501 - WB507 1

WB508 - WB512 2

WB531 - WB537 1

WB551 - WB554 1

WB591 - WB595 1

WB596 - WB597 2

WB601 - WB606 1

WB611 - WB618 1

WB619 - WB622 2

WB631 - WB638 1

WB646 - WB649 1

WC051 - WC073 1

WC101 - WC104 1

WC111 - WC114 1

WC115 - WC120 2

WC221 - WC222 2

WC223 - WC224 3

WC241 - WC243 1

WC281 - WC286 1

WC287 - WC290 2

WC301 - WC302 1

WC303 - WC308 2

WC361 - WC362 1

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BOEING SERVICE BULLETIN 777-31-0177
Variable Number Group

WC363 - WC364 2

WC371 - WC372 1

WC373 - WC374 2

WC381 - WC395 2

WC441 2

WC446 - WC449 2

WC456 - WC459 2

WC486 - WC493 2

WC506 - WC508 2

WC521 - WC522 2

WC531 - WC536 2

WC546 - WC548 2

WC556 2

WC566 - WC567 2

WC571 2

WC572 - WC574 3

WC581 3

WD001 - WD002 2

WD011 - WD015 2

WD016 - WD018 3

WD031 - WD036 2

WD046 - WD054 2

WD055 3

WD066 - WD067 2

WD068 - WD075 3

WD081 - WD082 2

WD083 - WD088 3

WD091 3

WD096 3

WD101 - WD103 3

WD501 - WD510 2

WD511 - WD513 3

WD521 - WD539 2

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BOEING SERVICE BULLETIN 777-31-0177
Variable Number Group

WD540 - WD541 3

WD546 - WD552 2

WD553 - WD554 3

WD561 - WD573 2

WD581 - WD598 2

WD599 3

WD606 - WD609 2

WD621 - WD632 2

WD651 - WD662 2

WD663 - WD665 3

WD671 - WD675 2

WD676 3

WD691 - WD709 2

WD741 - WD751 2

WD752 3

WD761 - WD770 2

WD771 3

WD786 - WD788 2

WD796 - WD805 2

WD806 - WD813 3

WD826 - WD830 2

WD831 - WD837 3

WD846 - WD852 2

WD853 - WD861 3

WD871 - WD875 2

WD876 - WD883 3

WD911 - WD912 2

WD913 - WD915 3

WD921 - WD922 3

WD936 - WD939 2

WD946 - WD951 3

WD966 - WD968 2

WD969 - WD970 3

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BOEING SERVICE BULLETIN 777-31-0177
Variable Number Group

WD981 - WD982 3

WD986 - WD987 3

WD996 3

WE001 - WE004 3

WE011 - WE012 3

WE021 - WE025 3

WE031 3

WE051 - WE052 3

WE071 3

WE081 - WE082 3

WE126 - WE133 3

WF001 - WF004 3

WF016 - WF020 3

WF031 - WF032 3

WF046 - WF054 3

WF076 - WF077 3

WF081 - WF088 3

WF096 - WF099 3

WF106 - WF107 3

WF111 - WF112 3

WF121 3

2. Spares Affected

None.

B. Concurrent Requirements

The service bulletin(s) listed below which install AIMS Blockpoint V14, or installation of a later AIMS

Blockpoint must be done before or at the same time as this service bulletin:

Group 1:

Company Service Bulletin Description

Boeing 777-31A0179 Original Issue Installs the AIMS-1 Blockpoint V14 software.

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BOEING SERVICE BULLETIN 777-31-0177
Group 2:

Company Service Bulletin Description

Boeing 777-31A0150 Original Issue or Revision 1 Installs the AIMS-2 Blockpoint V14 software.

Group 3:

None.

C. Reason

This service bulletin gives instructions to install the Aero-Engine Database (AEDB) software upgrade

in the Airplane Information Management System (AIMS) hardware. The revised AEDB is required to

be installed on 777 aircraft prior or concurrent with incorporation of the redesigned IP8 bleed screen

through Boeing service bulletin 777-75A0002. For airplanes with the Trent 800 engine model, the AEDB

software upgrade will limit the takeoff powersetting target so that it stays above the fan flutter lower

keep-out zone. For airplanes with other engine types, the AEDB software upgrade will help operators

to maintain part number commonality across their 777 fleet.

Rolls Royce has identified an area of operation where the Trent 800 engine can be exposed to potential

fan flutter with certain combinations of high takeoff thrust derate and additional Assumed Temperature

Method (ATM) thrust reduction. A review of in-service data has shown that there have been no takeoffs

in the fan flutter sensitive region. However, the installation of the redesigned IP8 bleed exhaust screens

through Boeing service bulletin 777-75A0002 may increase the exposure to fan flutter.

The intent of this change is to increase the Minimum Power Setting Parameter (min PSP) to prevent

displaying a takeoff target Engine Pressure Ratio (EPR) inside the region critical to fan flutter. The min

PSP is a constant that resides in the Airplane Flight Manual - Digital Performance Information (AFM-DPI)

and the AEDB portion of the Flight Management Computer (FMC). This AEDB update increases the

value of the min PSP from 1.100 to 1.170.

Prior to the incorporation of Boeing service bulletin 777-75A0002, the revised AEDB provided by this

service bulletin may be used with the operating limitations and airplane preformance limits given in

either the current Airplane Flight Manual (AFM) or the revised AFM.

Boeing Service Related Problem (SRP) 777-SRP-78-0052 is related to this service bulletin.

D. Description

Install the AEDB software in the AIMS hardware.

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

Group 1:

Affected Maintenance Zones

Model Zone

777-200, 777-300 212

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BOEING SERVICE BULLETIN 777-31-0177
Group 2:

Affected Maintenance Zones

Model Zone

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

777-300ER

Group 3:

Affected Maintenance Zones

Model Zone

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

300ER, 777F

E. Compliance

Boeing recommends that the change given in this service bulletin be done within three years 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

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BOEING SERVICE BULLETIN 777-31-0177
Task Number of Persons Task Hours Elapsed Hours

Install Software 1 0.50 0.50

Close Access 1 0.25 0.25

TOTAL FOR EACH AIRPLANE 1.00 1.00

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

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

This estimate does not include the task hour data given in the service bulletins in Paragraph 1.B.,

Concurrent Requirements.

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

J. References

1. Existing Data

a. Engineering Change Memo PRR 62777-73S

b. Boeing Service Bulletin 777-31-0167, 777-31-0183, 777-31A0150, 777-31A0179, 777-75A0002

c. Boeing Service Related Problem (SRP) 777-SRP-78-0052

d. 777 Aircraft Maintenance Manual (AMM) 20-15-11, 31-41-01, 31-41-02, 31-41-03, 31-41-04,

31-41-05

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 Illustrated Parts Catalog 46-01

2. Damage Tolerance Based Structural Inspections:

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BOEING SERVICE BULLETIN 777-31-0177
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.

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BOEING SERVICE BULLETIN 777-31-0177
2. MATERIAL INFORMATION

A. Material - Price and Availability

The operator can supply the software shown in Paragraph 2.C., Parts Necessary for Each Airplane.

As an alternative, operators can purchase the software from Boeing Spares. This service bulletin does

not show the Boeing price and supply data.

The software is subject to the terms and conditions of the Boeing standard purchase order

acknowledgment. Prices are in United States dollars. Terms: Net 30 days.

Reference this service bulletin and submit your purchase order by one of these methods:

1. Order on-line via ATA Spec 2000 or The Boeing Part Page

2. Fax to (206) 662-7145

B. Industry Support Information

Boeing warranty remedies are available for 777 airplanes in warranty as of December 8, 2004. For

task hour reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing

Commercial Airplanes Group - Warranties. The parts for airplanes in warranty as of that date will be

supplied at no charge. Send a purchase order for the parts to Boeing Spares. Please refer to this

service bulletin number and reference the airplane variable numbers in your purchase order.

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

31 AERO-ENGINE (a) (b) (c)

DATABASE

31 AERO-ENGINE 3110-BCG-00R-06

DATABASE

243W0033-7

(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 AIMS must contain the new software.

3. Parts Modified and Reidentified

None.

4. Parts Removed and Not Replaced

None.

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BOEING SERVICE BULLETIN 777-31-0177
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.

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BOEING SERVICE BULLETIN 777-31-0177
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. The instructions identified in Paragraph 3.B., Work Instructions, and the Figure(s)

give the recommended sequence of steps. The sequence of steps to do this service

bulletin can be changed.

2. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for

definition of the acronyms.

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

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. Refer to 777 AMM 20-15-11 as an accepted procedure for on-airplane software

installation maintenance practices and data transfer times.

B. WORK INSTRUCTIONS

1. Group 1:

Install the software shown below. Refer to 777 AMM 31-41-01, 777 AMM 31-41-02, 777 AMM

31-41-03 and 777 AMM 31-41-04 as accepted procedures.

Software Name Software Part Number Media Set Part Number More Data

31 AERO-ENGINE DATABASE 3110-BCG-00R-06 243W0033-7

2. Group 2-3:

Install the software shown below. Refer to 777 AMM 31-41-02, 777 AMM 31-41-04 and 777 AMM

31-41-05 as accepted procedures.

Software Name Software Part Number Media Set Part Number More Data

31 AERO-ENGINE DATABASE 3110-BCG-00R-06 243W0033-7

3. Put the airplane back to a serviceable condition.

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