July 24, 2003

Revision 2: August 16, 2007 777-24-0087

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 1 of 31

Commercial

Airplane

Group 777

Service Bulletin

Number: 777-24-0087

Date: July 24, 2003

Revision 2: August 16, 2007

ATA System: 2409

SUBJECT: ELECTRICAL POWER - Electrical Load Management System (ELMS) - Software 

Change

BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET

Copyright © 2003 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Unpublished Work - All Rights Reserved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, 707, 717, 727, 737, 747, 757, 767, 777, BBJ, BOEING BUSINESS JET, DC-8, DC-9, DC-10, MD-10, 

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 Table of Contents

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BOEING SERVICE BULLETIN 777-24-0087

Table of Contents

Revision Transmittal Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1. PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

E. Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2. Data supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . 18

3. Installation Drawings Used in the Preparation of this Service Bulletin: . . . . . . . . . . 18

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

A. Material - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1. Kits/Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2. Parts and Materials Supplied by the Operator: . . . . . . . . . . . . . . . . . . . . . . 21

3. Parts Modified and Reidentified: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4. Parts Removed and Not Replaced: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

E. Special Tooling - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . 26

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
 Table of Contents

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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-24-0087 Revision Transmittal Sheet

Date: July 24, 2003

Revision 2: August 16, 2007

ATA System: 2409

SUBJECT: ELECTRICAL POWER - Electrical Load Management System (ELMS) - Software 

Change

This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION

No more work is necessary on airplanes changed as shown in the original issue and/or Revision 1 of this service 

bulletin.

Airplane WB481 was moved from Group 2 to new Group 3 of this service bulletin effectivity.

REASON FOR REVISION

This revision is sent to move airplane WB481 from Group 2 to new Group 3 of this service bulletin effectivity and 

to update the Industry Support Information.

It was found that airplane WB481 had incorrect operation of the In Flight Entertainment (IFE) cooling system 

after the Electrical Load Management System (ELMS) software update. Further investigation found that the IFE 

cooling system configuration had changed after incorporating Boeing Service Bulletin 777-23-0146.

These sections were changed:

1. Summary and Paragraph 2.B., Industry Support Information, new information has been added.

2. Paragraph 1.A., Effectivity, airplane WB481 was moved from Group 2 to new Group 3.

3. Paragraph 2.C.2., Parts and Materials Supplied by the Operator, airplane WB481 was added to Diskette 

Set S281W601-372.

4. Paragraph 3.B., Work Instructions, airplane WB481 was added to Diskette Set S281W601-372.

5. In Paragraph 1.E., Compliance, new compliance information was added.

The data given in Information Notice 777-24-0087 IN 01 is included in this revision.

Paragraph 1.A., Effectivity, shows changes of airplane operators. Each operator should examine the Effectivity 

paragraph for changes.
 

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BOEING SERVICE BULLETIN 777-24-0087

Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location 

of important changes.

Pages with no vertical lines have no important changes.

REVISION HISTORY

Original Issue: July 24, 2003

Revision 1: December 18, 2003

Revision 2: August 16, 2007
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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-24-0087 Summary

Date: July 24, 2003

Revision 2: August 16, 2007

ATA System: 2409

SUBJECT: ELECTRICAL POWER - Electrical Load Management System (ELMS) - Software 

Change

CONCURRENT REQUIREMENTS

For Group 1 airplanes, service bulletin 777-24-0077 is necessary to be accomplished concurrent with this 

service bulletin.

For airplanes WB051-WB064, service bulletin 777-23-0046 is necessary to be accomplished prior to or 

concurrent with this service bulletin.

For airplane WB106, service bulletin 777-27-0046 is necessary to be accomplished prior to or concurrent with 

this service bulletin.

For airplanes WB311-WB321, service bulletin 777-25-0186 is necessary to be accomplished prior to or 

concurrent with this service bulletin.

For airplanes WB416-WB421, service bulletin 777-25-0123 is necessary to be accomplished prior to or 

concurrent with this service bulletin.

BACKGROUND

This change will decrease the number of ELMS P110 PANEL, ELMS P210 PANEL and ELMS P310 PANEL 

EICAS status messages. This change will also prevent an uncommanded deployment of the passenger oxygen 

masks.

One operator has reported that the oxygen masks dropped while the airplane was in initial climb. The oxygen 

New ELMS software is available which changes the oxygen mask inhibit to a fail-to-ground logic. A weight on 

wheels sensor fault will not cause an uncommanded oxygen mask drop. 

Operators have sent reports of more than the normal numbers of ELMS PX10 PANEL EICAS messages being 

seen. For airplanes delivered after line number 349, it was found that the ELMS CPU card could write an 

incorrect data value to the PTIM register on one channel of both of the ELMS ARINC cards. This incorrect data 

in the PTIM register would cause the ARINC cards to stop sending data on that channel. When both channels 

in one panel stop sending ARINC 629 data, the ELMS PX10 PANEL message is set on the EICAS. Other flight 

deck effects can also occur when the ELMS PX10 PANEL message is displayed. Refer to the 777 Maintenance 

Tip 777 MT 24-023 to get more data about the other possible flight deck effects.
 

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BOEING SERVICE BULLETIN 777-24-0087

New ELMS OPC software is available that can eliminate the ELMS PX10 PANEL EICAS messages caused by 

incorrect data being sent to the ARINC cards PTIM register. The new software continually sends the correct 

data to the PTIM register.

For airplanes WB136, WB201-WB203, WB302, WB616-WB617 and WC068-WC070, this change will prevent 

unnecessary maintenance actions for ELMS components. The installed ELMS software can set unnecessary 

faults for some internal components. These faults are not displayed because the installed airplane information 

management system (AIMS) software does not recognize the fault codes. Future revisions to the AIMS software 

will allow these fault codes to be displayed causing unnecessary maintenance action. This software change 

corrects the fault code logic to prevent unnecessary maintenance action on the ELMS panels.

For airplanes WC101-WC103 only, this software corrects the maximum landing weight for the fuel jettison 

calculations.

For airplanes delivered before line number 350, this change also supports the installation of the flight deck 

CABIN/UTILITY and IFE/ PASS SEATS power switches. Refer to the service bulletins 777-24-0075 and 777-

24-0077 to get more data about this change.

This service bulletin replaces previous ELMS software service bulletins 777-24-0070, 777-24-0079 and 777-24-

0082. The software change in this service bulletin includes the changes described in Boeing Service Bulletins 

777-24-0010, 777-24-0025 and 777-24-0039.

Boeing Service Related Problem (SRP) 777-SRP-24-0103 is related to this service bulletin.

ACTION

Change the ELMS operational software (OPS) and configuration database software (OPC) at the data loader.

EFFECTIVITY

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

COMPLIANCE

Federal Aviation Administration (FAA) Airworthiness Directive may release an AD related to this service bulletin. 

Boeing recommends that the change given in this service bulletin be done 60 months after the date on Revision 

2 of this service bulletin.

INDUSTRY SUPPORT INFORMATION

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

MANPOWER

MATERIAL INFORMATION

Operator Supplied Parts/Materials.

Airplanes Total Task Hours Elapsed Hours

All 2.25 2.25
 

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BOEING SERVICE BULLETIN 777-24-0087

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

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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-24-0087

Date: July 24, 2003

Revision 2: August 16, 2007

ATA System: 2409

SUBJECT: ELECTRICAL POWER - Electrical Load Management System (ELMS) - Software 

Change

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 61777-152 for data about this change.

Airplane models:

777-200 777-300

IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER

AEROMEXICO (AMX)

2 WB341

AIR AUSTRAL (AUX)

2 WB366–WB367

AIR CHINA (BEJ)

2 WA241–WA250

GROUP CONFIGURATION DESCRIPTION

1 - 777-200 airplanes with Boeing Service Bulletin 

777-24-0077 as a concurrent requirement.

2 - 777-200/-300 airplanes without Boeing Service 

Bulletin 777-24-0077 as a concurrent 

requirement.

3 - 777-200 airplanes with a different IFE cooling 

configuration.
 

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BOEING SERVICE BULLETIN 777-24-0087

AIR FRANCE (AFA)

2 WB311–WB335

AIR INDIA (AIN)

1 WA007 WB058–WB059 WB070

ALITALIA (ALI)

2 WC281–WC286

ALL NIPPON AIRWAYS (ANA)

1 WA131–WA137

2 WA221–WA223 WA231–WA232 WB482–WB484 WB531–WB537

3 WB481

AMERICAN AIRLINES (AAL)

2 WB416–WB436 WC051–WC073

ASIANA AIRLINES (AAR)

2 WC111–WC114

AUSTRIAN (AUL)

2 WB271–WB273

BOEING AIRCRAFT TRADING (BTU)

1 WA079–WA080

BRITISH AIRWAYS (BAB)

1 WA076–WA078 WB001–WB015

2 WB016–WB021 WB031–WB046 WB411–WB413

CATHAY PACIFIC AIRWAYS (CAT)

2 WA001 WA101–WA104 WB501–WB507

CHINA SOUTHERN AIRLINES (GUN)

1 WA116–WA119 WB121–WB125

CONTINENTAL AIRLINES (CAL)

2 WB371–WB388

DELTA AIR LINES (DAL)

2 WB446–WB453

EGYPTAIR (EGP)

2 WB151–WB155

EL AL ISRAEL AIRLINES (ELA)

2 WC101–WC104

EMIRATES (EAD)

1 WA196–WA198 WB101–WB104

2 WB105–WB106 WB631–WB638 WB646–WB649
 

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BOEING SERVICE BULLETIN 777-24-0087

ILFC (ILF)

2 WB342

JAL DOMESTIC (JAS)

1 WA206–WA209

2 WA210–WA212

JAL INTERNATIONAL (JAL)

1 WA171–WA175

2 WA281 WB591–WB595 WC241–WC243 WC301

KOREAN AIR (KAL)

1 WB131–WB132

2 WB133–WB138 WB551–WB554

KUWAIT AIRWAYS (KUW)

2 WB306–WB307

MALAYSIA AIRLINES (MAS)

2 WB161–WB175

MID EAST JET (SKL)

2 WB406

SAUDI ARABIAN AIRLINES (SVA)

2 WB276–WB286 WB291–WB302

SAUDI OGER (SAO)

2 WB476

SINGAPORE AIRLINES (SIA)

2 WB181–WB191 WB201–WB214 WB231–WB244 WB611–WB618

THAI AIRWAYS INTERNATIONAL (TII)

1 WA086–WA093

2 WB601–WB606

UNITED AIRLINES (UAL)

1 WA002–WA006 WA009–WA010 WA012–WA017 WA261–WA266

WB051–WB057 WB060–WB069 WB071 WB074–WB082

2 WB083–WB088

VARIG AIRLINES (VAR)

1 WA008 WA011 WB072–WB073

VIETNAM AIRLINES (VIE)

2 WB336–WB337 WC361–WC362
 

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BOEING SERVICE BULLETIN 777-24-0087

IDENTIFICATION BY VARIABLE NUMBER

Variable Group

WA001 2

WA002–WA017 1

WA076–WA080 1

WA086–WA093 1

WA101–WA104 2

WA116–WA119 1

WA131–WA137 1

WA171–WA175 1

WA196–WA198 1

WA206–WA209 1

WA210–WA212 2

WA221–WA223 2

WA231–WA232 2

WA241–WA250 2

WA261–WA266 1

WA281 2

WB001–WB015 1

WB016–WB021 2

WB031–WB046 2

WB051–WB082 1

WB083–WB088 2

WB101–WB104 1

WB105–WB106 2

WB121–WB125 1

WB131–WB132 1

WB133–WB138 2

WB151–WB155 2

WB161–WB175 2

WB181–WB191 2

WB201–WB214 2

WB231–WB244 2

WB271–WB273 2

WB276–WB286 2

WB291–WB302 2

WB306–WB307 2

WB311–WB337 2

WB341–WB342 2
 

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BOEING SERVICE BULLETIN 777-24-0087

2. Spares Affected

None.

B. Concurrent Requirements

For Group 1 airplanes, service bulletin 777-24-0077 is necessary to be accomplished concurrent with 

this service bulletin.

For airplanes WB051-WB064, service bulletin 777-23-0046 is necessary to be accomplished prior to 

or concurrent with this service bulletin.

For airplane WB106, service bulletin 777-27-0046 is necessary to be accomplished prior to or 

concurrent with this service bulletin.

For airplanes WB311-WB321, service bulletin 777-25-0186 is necessary to be accomplished prior to 

or concurrent with this service bulletin.

WB366–WB367 2

WB371–WB388 2

WB406 2

WB411–WB413 2

WB416–WB436 2

WB446–WB453 2

WB476 2

WB481 3

WB482–WB484 2

WB501–WB507 2

WB531–WB537 2

WB551–WB554 2

WB591–WB595 2

WB601–WB606 2

WB611–WB618 2

WB631–WB638 2

WB646–WB649 2

WC051–WC073 2

WC101–WC104 2

WC111–WC114 2

WC241–WC243 2

WC281–WC286 2

WC301 2

WC361–WC362 2

Variable Group
 

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BOEING SERVICE BULLETIN 777-24-0087

For airplanes WB416-WB421, service bulletin 777-25-0123 is necessary to be accomplished prior to 

or concurrent with this service bulletin.

C. Reason

This change will decrease the number of ELMS P110 PANEL, ELMS P210 PANEL and ELMS P310 

PANEL EICAS status messages. This change will also prevent an uncommanded deployment of the 

passenger oxygen masks.

One operator has reported that the oxygen masks dropped while the airplane was in initial climb. The 

oxygen New ELMS software is available which changes the oxygen mask inhibit to a fail-to-ground 

logic. A weight on wheels sensor fault will not cause an uncommanded oxygen mask drop. 

Operators have sent reports of more than the normal numbers of ELMS PX10 PANEL EICAS 

messages being seen. For airplanes delivered after line number 349, it was found that the ELMS CPU 

card could write an incorrect data value to the PTIM register on one channel of both of the ELMS 

ARINC cards. This incorrect data in the PTIM register would cause the ARINC cards to stop sending 

data on that channel. When both channels in one panel stop sending ARINC 629 data, the ELMS 

PX10 PANEL message is set on the EICAS. Other flight deck effects can also occur when the ELMS 

PX10 PANEL message is displayed. Refer to the 777 Maintenance Tip 777 MT 24-023 to get more 

data about the other possible flight deck effects.

New ELMS OPC software is available that can eliminate the ELMS PX10 PANEL EICAS messages 

caused by incorrect data being sent to the ARINC cards PTIM register. The new software continually 

sends the correct data to the PTIM register.

For airplanes WB136, WB201-WB203, WB302, WB616-WB617 and WC068-WC070, this change will 

prevent unnecessary maintenance actions for ELMS components. The installed ELMS software can 

set unnecessary faults for some internal components. These faults are not displayed because the 

installed airplane information management system (AIMS) software does not recognize the fault 

codes. Future revisions to the AIMS software will allow these fault codes to be displayed causing 

unnecessary maintenance action. This software change corrects the fault code logic to prevent 

unnecessary maintenance action on the ELMS panels.

For airplanes WC101-WC103 only, this software corrects the maximum landing weight for the fuel 

jettison calculations.

For airplanes delivered before line number 350, this change also supports the installation of the flight 

deck CABIN/UTILITY and IFE/ PASS SEATS power switches. Refer to the service bulletins 777-24-

0075 and 777-24-0077 to get more data about this change.

This service bulletin replaces previous ELMS software service bulletins 777-24-0070, 777-24-0079 

and 777-24-0082. The software change in this service bulletin includes the changes described in 

Boeing Service Bulletins 777-24-0010, 777-24-0025 and 777-24-0039.

Boeing Service Related Problem (SRP) 777-SRP-24-0103 is related to this service bulletin.

Revision 1 was sent to make the airplane effectivity the same as shown on the summary page. 

Airplanes WB083-WB088 are moved to Group 2.

Revision 2 is sent to move airplane WB481 from Group 2 to new Group 3 of this service bulletin 

effectivity and to update the Industry Support Information.
 

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BOEING SERVICE BULLETIN 777-24-0087

It was found that airplane WB481 had incorrect operation of the In Flight Entertainment (IFE) cooling 

system after the Electrical Load Management System (ELMS) software update. Further investigation 

found that the IFE cooling system configuration had changed after incorporating Boeing Service 

Bulletin 777-23-0146.

These sections were changed:

1. Summary and Paragraph 2.B., Industry Support Information, new information has been added.

2. Paragraph 1.A., Effectivity, airplane WB481 was moved from Group 2 to new Group 3.

3. Paragraph 2.C.2., Parts and Materials Supplied by the Operator, airplane WB481 was added to 

Diskette Set S281W601-372.

4. Paragraph 3.B., Work Instructions, airplane WB481 was added to Diskette Set S281W601-372.

The data given in Information Notice 777-24-0087 IN 01 is included in this revision.

D. Description

The ELMS operational software (OPS) and configuration database software (OPC) at the data loader 

is changed.

Revision 1 - No more work is necessary on airplanes changed as shown in the initial release of this 

service bulletin.

Revision 2 - No more work is necessary on airplanes changed as shown in the original issue and/or 

Revision 1 of this service bulletin.

E. Compliance

Federal Aviation Administration (FAA) Airworthiness Directive may release an AD related to this 

service bulletin.

Boeing recommends that the change given in this service bulletin be done 60 months after the date 

on Revision 2 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.
 

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BOEING SERVICE BULLETIN 777-24-0087

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.

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 61777-152

b. Service Related Problem (SRP) 777-SRP-24-0103

c. 777 Maintenance Manual (AMM) Subject 24-09-00

d. Boeing Service Bulletins 777-23-0046, 777-24-0070, 777-24-0075, 777-24-0077, 777-24-

0079, 777-24-0082, 777-25-0123, 777-25-0186, 777-27-0046

e. 777 Maintenance Tip 777 MT 24-023

2. Data supplied with this Service Bulletin:

None.

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

None.

Task

Number of 

Persons Task-Hours Elapsed Hours

Load New Software 1 2.00 2.00

Test 1 0.25 0.25

TOTAL FOR EACH AIRPLANE 2.25 2.25
 

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K. Publications Affected

L. Interchangeability and Intermixability of Parts

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

Publication Chapter-Section

777 AMM 24-09

777 Illustrated Parts Catalog 24-09

777 Fault Isolation Manual (FIM) 24-09
 

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BLANK PAGE
 

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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 / Specification QTY Name Notes

S281W601-308 1 Disc Set (a) (b)

S281W601-309 1 Disc Set (a) (c)

S281W601-310 1 Disc Set (a) (d)

S281W601-311 1 Disc Set (a) (e)

S281W601-312 1 Disc Set (a) (f)

S281W601-313 1 Disc Set (a) (g)

S281W601-314 1 Disc Set (a) (h)

S281W601-315 1 Disc Set (a) (i)

S281W601-316 1 Disc Set (a) (j)

S281W601-317 1 Disc Set (a) (k)

S281W601-318 1 Disc Set (a) (l)

S281W601-319 1 Disc Set (a) (m)

S281W601-320 1 Disc Set (a) (n)

S281W601-321 1 Disc Set (a) (o)

S281W601-322 1 Disc Set (a) (p)

S281W601-323 1 Disc Set (a) (q)

S281W601-324 1 Disc Set (a) (r)

S281W601-325 1 Disc Set (a) (s)

S281W601-327 1 Disc Set (a) (t)

S281W601-328 1 Disc Set (a) (u)

S281W601-329 1 Disc Set (a) (v)

S281W601-330 1 Disc Set (a) (w)

S281W601-331 1 Disc Set (a) (x)

S281W601-332 1 Disc Set (a) (y)
 

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S281W601-333 1 Disc Set (a) (z)

S281W601-334 1 Disc Set (a) (aa)

S281W601-336 1 Disc Set (a) (ab)

S281W601-337 1 Disc Set (a) (ac)

S281W601-338 1 Disc Set (a) (ad)

S281W601-339 1 Disc Set (a) (ae)

S281W601-340 1 Disc Set (a) (af)

S281W601-341 1 Disc Set (a) (ag)

S281W601-342 1 Disc Set (a) (ah)

S281W601-343 1 Disc Set (a) (ai)

S281W601-344 1 Disc Set (a) (aj)

S281W601-345 1 Disc Set (a) (ak)

S281W601-346 1 Disc Set (a) (al)

S281W601-347 1 Disc Set (a) (am)

S281W601-348 1 Disc Set (a) (an)

S281W601-349 1 Disc Set (a) (ao)

S281W601-350 1 Disc Set (a) (ap)

S281W601-351 1 Disc Set (a) (aq)

S281W601-352 1 Disc Set (a) (ar)

S281W601-353 1 Disc Set (a) (as)

S281W601-354 1 Disc Set (a) (at)

S281W601-355 1 Disc Set (a) (au)

S281W601-356 1 Disc Set (a) (av)

S281W601-357 1 Disc Set (a) (aw)

S281W601-358 1 Disc Set (a) (ax)

S281W601-359 1 Disc Set (a) (ay)

S281W601-360 1 Disc Set (a) (az)

S281W601-361 1 Disc Set (a) (ba)

S281W601-362 1 Disc Set (a) (bb)

S281W601-363 1 Disc Set (a) (bc)

S281W601-364 1 Disc Set (a) (bd)

S281W601-365 1 Disc Set (a) (be)

S281W601-366 1 Disc Set (a) (bf)

S281W601-367 1 Disc Set (a) (bg)

S281W601-368 1 Disc Set (a) (bh)

S281W601-369 1 Disc Set (a) (bi)

S281W601-371 1 Disc Set (a) (bj)

S281W601-372 1 Disc Set (a) (bk)

Part Number / Specification QTY Name Notes
 

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(a) Smiths Aerospace Electronic Systems (VK5294), Evesham Road Bishops Cleeve, Cheltenham, 

Gloucestershire GL52 4SF England

(b) OPS software part number 2467-SMI-000-71 and OPC software part number 2417-SMI-A02-36 

for airplane WA001.

(c) OPS software part number 2467-SMI-000-71 and OPC software part number 2419-SMI-A02-83 

for airplane WA002-WA005.

(d) OPS software part number 2467-SMI-000-71 and OPC software part number 241E-SMI-A02-84 

for airplane WA006-WA017.

(e) OPS software part number 2467-SMI-000-71 and OPC software part number 241F-SMI-A02-85 

for airplane WA076-WA080.

(f) OPS software part number 2467-SMI-000-71 and OPC software part number 241C-SMI-A02-86 

for airplane WA086-WA093.

(g) OPS software part number 2467-SMI-000-71 and OPC software part number 241D-SMI-A02-87 

for airplane WA116-WA119.

(h) OPS software part number 2467-SMI-000-71 and OPC software part number 2412-SMI-A02-88 

for airplane WA131-WA137.

(i) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-89 

for airplane WA171-WA175.

(j) OPS software part number 2467-SMI-000-71 and OPC software part number 241B-SMI-A02-90 

for airplane WA196-WA198.

(k) OPS software part number 2467-SMI-000-71 and OPC software part number 241A-SMI-A02-91 

for airplane WA206-WA209.

(l) OPS software part number 2467-SMI-000-71 and OPC software part number 2416-SMI-A02-37 

for airplane WA210-WA212.

(m) OPS software part number 2467-SMI-000-71 and OPC software part number 2419-SMI-A02-92 

for airplane WA221-WA223, WA231-WA232.

(n) OPS software part number 2467-SMI-000-71 and OPC software part number 2419-SMI-A02-38 

for airplane WA241-WA250.

(o) OPS software part number 2467-SMI-000-71 and OPC software part number 2418-SMI-A02-93 

for airplane WA261-WA266.

(p) OPS software part number 2467-SMI-000-71 and OPC software part number 241C-SMI-A02-79 

for airplane WA281.

(q) OPS software part number 2467-SMI-000-71 and OPC software part number 241F-SMI-A02-94 

for airplane WB001-WB015.

(r) OPS software part number 2467-SMI-000-71 and OPC software part number 2418-SMI-A02-39 

for airplane WB016-WB021, WB411-WB413.

(s) OPS software part number 2467-SMI-000-71 and OPC software part number 2416-SMI-A02-40 

for airplane WB031-WB046.

(t) OPS software part number 2467-SMI-000-71 and OPC software part number 241E-SMI-A02-95 

for airplane WB051-WB064 (after SB 777-23-0046), WB065-WB073.

(u) OPS software part number 2467-SMI-000-71 and OPC software part number 2417-SMI-A02-41 

for airplane WB074-WB088.

(v) OPS software part number 2467-SMI-000-71 and OPC software part number 241D-SMI-A02-96 

for airplane W101-WB104.

Part Number / Specification QTY Name Notes
 

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(w)OPS software part number 2467-SMI-000-71 and OPC software part number 2414-SMI-A02-42 

for airplane WB105.

(x) OPS software part number 2467-SMI-000-71 and OPC software part number 2415-SMI-A02-43 

for airplane WB106 (after SB 777-27-0046).

(y) OPS software part number 2467-SMI-000-71 and OPC software part number 241C-SMI-A02-97 

for airplane WB121-WB125.

(z) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-98 

for airplane WB131-WB132.

(aa) OPS software part number 2467-SMI-000-71 and OPC software part number 2415-SMI-A02-70 

for airplane WB133-WB138.

(ab) OPS software part number 2467-SMI-000-71 and OPC software part number 2412-SMI-A02-44 

for airplane WB151-WB155.

(ac) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-

45 for airplanes WB161-WB169.

(ad) OPS software part number 2467-SMI-000-71 and OPC software part number 2410-SMI-A02-46 

for airplanes WB170-WB175.

(ae) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-67 

for airplanes WB181-WB188, WB231-WB239.

(af) OPS software part number 2467-SMI-000-71 and OPC software part number 2411-SMI-A02-47 

for airplane WB189-WB191, WB240-WB244.

(ag) OPS software part number 2467-SMI-000-71 and OPC software part number 241C-SMI-A02-

68 for airplanes WB201-WB214.

(ah) OPS software part number 2467-SMI-000-71 and OPC software part number 241E-SMI-A02-

48 for airplanes WB271-WB273.

(ai) OPS software part number 2467-SMI-000-71 and OPC software part number 2414-SMI-A02-71 

for airplanes WB276-WB286, WB291-WB302.

(aj) OPS software part number 2467-SMI-000-71 and OPC software part number 241F-SMI-A02-49 

for airplanes WB306-WB307.

(ak) OPS software part number 2467-SMI-000-71 and OPC software part number 2417-SMI-A02-

50 for airplanes WB311-WB321 (with SB 777-25-0186), WB322-WB335.

(al) OPS software part number 2467-SMI-000-71 and OPC software part number 2416-SMI-A02-51 

for airplanes WB336-WB337, WB481 (without SB 777-23-0146).

(am) OPS software part number 2467-SMI-000-71 and OPC software part number 2411-SMI-A02-

65 for airplanes WB341-WB342.

(an) OPS software part number 2467-SMI-000-71 and OPC software part number 2415-SMI-A02-52 

for airplanes WB366-WB367.

(ao) OPS software part number 2467-SMI-000-71 and OPC software part number 2414-SMI-A02-

53 for airplanes WB371-WB388.

(ap) OPS software part number 2467-SMI-000-71 and OPC software part number 2412-SMI-A03-01 

for airplane WB406.

(aq) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-54 

for airplanes WB416-WB421 (with SB 777-25-0123), WB422-WB436, WC051-WC073 (with SB 

777-23-0183).

Part Number / Specification QTY Name Notes
 

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3. Parts Modified and Reidentified:

None.

(ar) OPS software part number 2467-SMI-000-71 and OPC software part number 2411-SMI-A02-56 

for airplanes WB446-WB453 (no crew rest area installed).

(as) OPS software part number 2467-SMI-000-71 and OPC software part number 2412-SMI-A02-

66 for airplanes WB446-WB453 (crew rest area installed).

(at) OPS software part number 2467-SMI-000-71 and OPC software part number 2412-SMI-A02-99 

for airplane WB476.

(au) OPS software part number 2467-SMI-000-71 and OPC software part number 2410-SMI-A02-57 

for airplanes WB501-WB507.

(av) OPS software part number 2467-SMI-000-71 and OPC software part number 241F-SMI-A02-58 

for airplanes WB531-WB537.

(aw) OPS software part number 2467-SMI-000-71 and OPC software part number 241E-SMI-A02-

59 for airplanes WB551-WB554.

(ax) OPS software part number 2467-SMI-000-71 and OPC software part number 2414-SMI-A02-60 

for airplanes WB591-WB595.

(ay) OPS software part number 2467-SMI-000-71 and OPC software part number 2415-SMI-A02-61 

for airplanes WB601-WB606.

(az) OPS software part number 2467-SMI-000-71 and OPC software part number 2417-SMI-A02-72 

for airplanes WB611-WB618.

(ba) OPS software part number 2467-SMI-000-71 and OPC software part number 2416-SMI-A02-

62 for airplanes WB631-WB638, WB646-WB648.

(bb) OPS software part number 2467-SMI-000-71 and OPC software part number 241D-SMI-A02-

69 for airplanes WC051-WC073 (without SB 777-23-0183).

(bc) OPS software part number 2467-SMI-000-71 and OPC software part number 2417-SMI-A02-63 

for airplanes WC101-WC104.

(bd) OPS software part number 2467-SMI-000-71 and OPC software part number 2410-SMI-A02-64 

for airplanes WC111-WC114.

(be) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A02-

76 for airplanes WC241-WC243.

(bf) OPS software part number 2467-SMI-000-71 and OPC software part number 2413-SMI-A03-00 

for airplanes WC281-WC286 (without the overhead crew rest area).

(bg) OPS software part number 2467-SMI-000-71 and OPC software part number 2410-SMI-A02-75 

for airplanes WC281-WC286 (with the overhead crew rest area).

(bh) OPS software part number 2467-SMI-000-71 and OPC software part number 2418-SMI-A02-82 

for airplane WC301.

(bi) OPS software part number 2467-SMI-000-71 and OPC software part number 241D-SMI-A02-78 

for airplanes WC361-WC362.

(bj) OPS software part number 2467-SMI-000-71 and OPC software part number 2416-SMI-A02-73 

for airplanes WA101-WA104.

(bk) OPS software part number 2467-SMI-000-71 and OPC software part number 2411-SMI-A02-74 

for airplanes WB482-WB484, WB481 (with SB 777-23-0146).

Part Number / Specification QTY Name Notes
 

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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.
 

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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.

B. WORK INSTRUCTIONS

1. Prepare the software dataloader to install the new ELMS software. Refer to the 777 AMM 24-09-

00, ELMS Electronic Unit - Software Installation, to get the recommended procedures.

2. Install the new ELMS OPS and OPC software. Refer to the table below to get the part number 

of the software.

S281W601-308 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2417-SMI-A02-36)

WA001

S281W601-309 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2419-SMI-A02-83)

WA002-WA005

S281W601-310 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241E-SMI-A02-84)

WA006-WA017

S281W601-311 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241F-SMI-A02-85)

WA076-WA080

S281W601-312 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241C-SMI-A02-86)

WA086-WA093

S281W601-371 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-73)

WA101-WA104.

S281W601-313 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241D-SMI-A02-87)

WA116-WA119

S281W601-314 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2412-SMI-A02-88)

WA131-WA137
 

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S281W601-315 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-89)

WA171-WA175

S281W601-316 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241B-SMI-A02-90)

WA196-WA198.

S281W601-317 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241A-SMI-A02-91)

WA206-WA209.

S281W601-318 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-37)

WA210-WA212.

S281W601-319 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2419-SMI-A02-92)

WA221-WA223, WA231-WA232.

S281W601-320 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2419-SMI-A02-38)

WA241-WA250.

S281W601-321 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2418-SMI-A02-93)

WA261-WA266.

S281W601-322 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241C-SMI-A02-79)

WA281.

S281W601-323 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241F-SMI-A02-94)

WB001-WB015.

S281W601-324 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2418-SMI-A02-39)

WB016-WB021, WB031-WB036 (before SB 

777-26-0030).

S281W601-325 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-40)

WB031-WB046.

S281W601-327 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241E-SMI-A02-95)

WB051-WB064 (after SB 777-23-0046), 

WB065-WB073.

S281W601-328 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2417-SMI-A02-41)

WB074-WB088.

S281W601-329 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241D-SMI-A02-96)

W101-WB104.

S281W601-330 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2414-SMI-A02-42)

WB105.

S281W601-331 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2415-SMI-A02-43)

WB106 (after SB 777-27-0046)
 

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S281W601-332 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241C-SMI-A02-97)

WB121-WB125

S281W601-333 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-98)

WB131-WB132

S281W601-334 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2415-SMI-A02-70)

WB133-WB138

S281W601-336 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2412-SMI-A02-44)

WB151-WB155

S281W601-337 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-45)

WB161-WB169

S281W601-338 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2410-SMI-A02-46)

WB170-WB175

S281W601-339 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-67)

WB181-WB188

S281W601-340 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2411-SMI-A02-47)

WB189-WB191

S281W601-341 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241C-SMI-A02-68)

WB201-WB214

S281W601-339 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-67)

WB231-WB239

S281W601-340 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2411-SMI-A02-47)

WB240-WB244

S281W601-342 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241E-SMI-A02-48)

WB271-WB273

S281W601-343 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2414-SMI-A02-71)

WB276-WB286, WB291-WB302

S281W601-344 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241F-SMI-A02-49)

WB306-WB307

S281W601-345 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2417-SMI-A02-50)

WB311-WB321 (with SB 777-25-0186), 

WB322-WB335

S281W601-346 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-51)

WB336-WB337
 

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S281W601-347 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2411-SMI-A02-65)

WB341-WB342

S281W601-348 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2415-SMI-A02-52)

WB366-WB367

S281W601-349 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2414-SMI-A02-53)

WB371-WB388.

S281W601-350 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2412-SMI-A03-01).

WB406

S281W601-324 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2418-SMI-A02-39)

WB411-WB413

S281W601-351 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-54).

WB416-WB421 (with SB 777-25-0123), 

WB422-WB436, WC051-WC073 (with SB 777-

23-0183)

S281W601-352 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2411-SMI-A02-56)

WB446-WB453 (no crew rest area installed)

S281W601-353 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2412-SMI-A02-66)

WB446-WB453 (crew rest area installed)

S281W601-354 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2412-SMI-A02-99)

WB476

S281W601-346 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-51)

WB481 (without SB 777-23-0146)

S281W601-372 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2411-SMI-A02-74)

WB482-WB484, WB481 (with SB 777-23-0146)

S281W601-355 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2410-SMI-A02-57)

WB501-WB507

S281W601-356 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241F-SMI-A02-58)

WB531-WB537

S281W601-357 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241E-SMI-A02-59)

WB551-WB554

S281W601-358 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2414-SMI-A02-60)

WB591-WB595

S281W601-359 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2415-SMI-A02-61)

WB601-WB606
 

July 24, 2003

Revision 2: August 16, 2007 777-24-0087

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 31 of 31

BOEING SERVICE BULLETIN 777-24-0087

3. Put the airplane back to a serviceable condition.

S281W601-360 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2417-SMI-A02-72)

WB611-WB618

S281W601-361 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2416-SMI-A02-62)

WB631-WB638, WB646-WB648

S281W601-362 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241D-SMI-A02-69)

WC051-WC073 (without SB 777-23-0183).

S281W601-363 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2417-SMI-A02-63)

WC101-WC104

S281W601-364 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2410-SMI-A02-64)

WC111-WC114

S281W601-365 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A02-76)

WC241-WC243

S281W601-366 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2413-SMI-A03-00)

WC281-WC286 (without the overhead crew 

rest area).

S281W601-367 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2410-SMI-A02-75)

WC281-WC286 (with the overhead crew rest 

area).

S281W601-368 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 2418-SMI-A02-82)

WC301

S281W601-369 (OPS software part number 

2467-SMI-000-71 and OPC software part 

number 241D-SMI-A02-78)

WC361-WC362.