July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 1 of 31 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## BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2003 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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, MD-11, MD-80, MD-90, the Boeing logo and the Boeing livery are among the trademarks owned by Boeing or its subsidiaries. No intellectual property license (express or implied) is granted in connection with this document or otherwise.BLANK PAGE July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 2 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

BLANK PAGETable of Contents July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 3 of 31 

### 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Table of Contents July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 4 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

BLANK PAGEJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 5 of 31 

### 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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 6 of 31 

### 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, 2007July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 31 

### 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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 8 of 31 

### 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.
COMPLIANCEFederal 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 2.25July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 9 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

Refer to Paragraph 2.A., Material - Price and Availability.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 10 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

BLANK PAGEJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 11 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

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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 12 of 31 

### 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–WB649July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 13 of 31 

### 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–WC362July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 14 of 31 

### 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 2July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 15 of 31 

### 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 GroupJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 16 of 31 

### 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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 17 of 31 

### 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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 18 of 31 

### 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 2.25July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 19 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

K. Publications Affected

L. Interchangeability and In termixability 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) 24-09July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 20 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

BLANK PAGEJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 21 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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)July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 22 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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 NotesJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 23 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

(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 NotesJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 24 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

(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 NotesJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 25 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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 NotesJuly 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 26 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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.July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 27 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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 CONTAM INATION 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-WA137July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 28 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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)July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 29 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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-WB337July 24, 2003 Revision 2: August 16, 2007 777-24-0087 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 30 of 31 

### BOEING SERVICE BULLETIN 777-24-0087

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-WB606July 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.