July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 1 of 26 

### Commercial Airplane Group 

# 777

SPECIAL ATTENTION 

# Service Bulletin

Number: 777-24-0106 Date: July 20, 2007 ATA System: 2409 SUBJECT: ELECTRICAL POWER - Electrical Load Management (ELM) System - Installation of Enclosure Trays for Debris Containment 

## BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2007 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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in connection with this document or otherwise.BLANK PAGE July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 2 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

BLANK PAGETable of Contents July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 3 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

Table of Contents Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 E. Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2. Data supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . 17 3. Installation Drawings Used in the Preparation of this Service Bulletin: . . . . . . . . . . 17 K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 A. Material - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1. Kits/Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2. Parts and Materials Supplied by the Operator: . . . . . . . . . . . . . . . . . . . . . . 20 3. Parts Modified and Reidentified: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4. Parts Removed and Not Replaced: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 E. Special Tooling - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . 21 3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 FIGURE 1: LOCATION OF THE ELMS POWER PANELS . . . . . . . . . . . . . . . . . . . . . . . 25Table of Contents July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 4 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

BLANK PAGEJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 5 of 26 

### Commercial Airplane Group 

# 777

SPECIAL ATTENTION 

# Service Bulletin

Number: 777-24-0106 

### Summary Date: July 20, 2007 ATA System: 2409 SUBJECT: ELECTRICAL POWER - Electrical Load Management (ELM) System - Installation of Enclosure Trays for Debris Containment

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY. CONCURRENT REQUIREMENTS Refer to Paragraph 1.B., Concurrent Requirements. BACKGROUND Accomplishment of the changes in this service bulletin will prevent a possible fire and or smoke and subsequent damage to insulation blanket and wiring below Electrical Load Management System (ELMS) panels. An ELMS contactor failure in a P100, P200 or P300 power panel can create molten debris. If the molten debris from the overheated ELMS contactor is not contained, damage to components from smoke and heat can occur and the smoke and heat can cause injury to persons. One operator reported that an airplane on the ground experienced smoke and heat damage from insulation blankets that smouldered after molten debris from a P200 ELMS power panel fell on the insulation blankets. When a contactor in the ELMS panel fails and overheats, the heat can cause molten debris to fall out of the panel. The bottom of the ELMS panel are open without protection to prevent hot debris from falling on to the insulation blankets below the panel. This service bulletin installs an enclosure tray on the heat shield of the ELMS panel. The enclosure tray will contain the debris and prevent hot debris from falling on the blankets and components below the ELMS panel in the event of a contactor failure. Containment of the hot debris will prevent damage from smoke and heat and reduce the risk to personal safety. Boeing Service Related Problem (SRP) 777-SRP-24-0131 is related to this service bulletin. ACTION (PRR62184-1) Get access to the main equipment center. Change the heat shields on the P100, P200, and P300 power panels as given in the related Smiths Aerospace service bulletins. Close access to the main equipment center. Return the airplane to a serviceable condition. EFFECTIVITY 777-200/-200LR/-300/-300ER Airplanes. Refer to Paragraph 1.A.1., Airplanes for the list of affected airplanes.July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 6 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

COMPLIANCE Boeing recommends that this service bulletin be incorporated within 60 months of the date on this service bulletin. INDUSTRY SUPPORT INFORMATION At the time of release of this service bulletin, warranty remedies have not been determined. A subsequent revision or Information Notice will address the warranty remedies available, if any. MANPOWER

The time to make the change to the power panels as given in the Smiths service bulletin is not included. MATERIAL INFORMATION Boeing Supplied Kits/Parts. Refer to Paragraph 2.A., Material - Price and Availability. Airplanes Total Task Hours Elapsed Hours Group 1 3.00 3.00July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

WORK PACKAGE 3: GET ACCESS TO THE P300 POWER PANEL. REMOVE THE HEAT SHIELD (PROTECTIVE COVER) FROM THE PANEL. INSTALL THE ENCLOSURE TRAY AS GIVEN IN THE RELATED SMITHS AEROSPACE BULLETIN. INSTALL THE CHANGED HEAT SHIELD.



### MAIN EQUIPMENT CENTER WORK PACKAGE 2: GET ACCESS TO THE P200 POWER PANEL. REMOVE THE HEAT SHIELD (PROTECTIVE COVER) FROM THE PANEL. INSTALL THE ENCLOSURE TRAY AS GIVEN IN THE RELATED SMITHS AEROSPACE BULLETIN. INSTALL THE CHANGED HEAT SHIELD.

WORK PACKAGE 1: GET ACCESS TO THE P100 POWER PANEL. REMOVE THE HEAT SHIELD (PROTECTIVE COVER) FROM THE PANEL. INSTALL THE ENCLOSURE TRAY AS GIVEN IN THE RELATED SMITHS AEROSPACE BULLETIN. INSTALL THE CHANGED HEAT SHIELD. FWD1420290July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 8 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

BLANK PAGEJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 9 of 26 

### Commercial Airplane Group 

# 777

SPECIAL ATTENTION 

# Service Bulletin

Number: 777-24-0106 Date: July 20, 2007 ATA System: 2409 SUBJECT: ELECTRICAL POWER - Electrical Load Management (ELM) System - Installation of Enclosure Trays for Debris Containment

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY. 1. PLANNING INFORMATION A. Effectivity 1. Airplanes Refer to Service Bulletin Index Document D624W001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data. This service bulletin is for the airplanes shown below. An equivalent change is on subsequent production airplanes. Refer to PRR62184-1 for data about this change.

Airplane models: 777-200 777-200LR 777-300 777-300ER IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER AEROMEXICO (AMX) 1 WB341 WC521–WC522 AIR AUSTRAL (AUX) 1 WB366–WB368 AIR CANADA (ACN) 1 WD031–WD032 WD741–WD745 AIR CHINA (BEJ) 1 WA241–WA250 GROUP CONFIGURATION DESCRIPTION 1 - 777-200/-200LR/-300/-300ER airplanesJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 10 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

AIR FRANCE (AFA) 1 WB311–WB335 WD521–WD536 WD546–WD552 AIR INDIA (AIN) 1 WA007 WB058–WB059 WB070 WD011–WD014 WD826–WD828 AIR NEW ZEALAND (ANZ) 1 WC486–WC493 AIRCRAFT MARKETING LTD. (CFK) 1 WA079–WA080 ALITALIA (ALI) 1 WC281–WC290 ALL NIPPON AIRWAYS (ANA) 1 WA131–WA137 WA221–WA223 WA231–WA232 WA301–WA304 WB481–WB484 WB531–WB537 WC506–WC508 WD561–WD571 AMERICAN AIRLINES (AAL) 1 WB416–WB439 WC051–WC073 ASIANA AIRLINES (AAR) 1 WC111–WC119 AUSTRIAN (AUL) 1 WB271–WB273 WC556 BRITISH AIRWAYS (BAB) 1 WA076–WA078 WB001–WB021 WB031–WB046 WB411–WB413 CATHAY PACIFIC AIRWAYS (CAT) 1 WA001 WA101–WA104 WB501–WB512 WD796–WD797 CHINA SOUTHERN AIRLINES (GUN) 1 WA116–WA119 WB121–WB125 WC441 CONTINENTAL AIRLINES (CAL) 1 WB371–WB388 WC221–WC222 DELTA AIR LINES (DAL) 1 WB446–WB453 EGYPTAIR (EGP) 1 WB151–WB155 EL AL ISRAEL AIRLINES (ELA) 1 WC101–WC104 WC566–WC567 EMIRATES (EAD) 1 WA196–WA198 WB101–WB106 WB631–WB638 WB646–WB649 WD046–WD047 WD581–WD594 WD606–WD609 WD621–WD632July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 11 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

ETIHAD AIRWAYS (ETI) 1 WD671–WD675 EVA AIR (EVA) 1 WD651–WD657 ILFC (ILF) 1 WB342 JAL INTERNATIONAL (JAL) 1 WA171–WA175 WA206–WA212 WA281–WA283 WB591–WB597 WC241–WC243 WC301–WC308 WD501–WD507 JET AIRWAYS (JPL) 1 WD761–WD766 KENYA AIRWAYS (KEN) 1 WC456–WC459 KLM - ROYAL DUTCH AIRLINES (KLM) 1 WC381–WC395 KOREAN AIR (KAL) 1 WB131–WB144 WB551–WB554 KUWAIT AIRWAYS (KUW) 1 WB306–WB307 MALAYSIA AIRLINES (MAS) 1 WB161–WB177 MID EAST JET (SKL) 1 WB406 PAKISTAN INT'L AIRLINES (PIA) 1 WC446–WC449 WD001–WD002 WD786–WD787 ROYAL BRUNEI AIRLINES (RBA) 1 WB072–WB073 SAUDI ARABIAN AIRLINES (SVA) 1 WB276–WB286 WB291–WB302 SAUDI OGER (SAO) 1 WB476 SINGAPORE AIRLINES (SIA) 1 WB181–WB194 WB201–WB215 WB231–WB247 WB611–WB622 WD691–WD700 TAAG (ANGOLA AIRLINES) (ANG) 1 WC546–WC547July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 12 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

THAI AIRWAYS INTERNATIONAL (TII) 1 WA086–WA093 WB601–WB606 WC531–WC535 UNITED AIRLINES (UAL) 1 WA002–WA006 WA009–WA010 WA012–WA017 WA261–WA266 WB051–WB057 WB060–WB069 WB071 WB074–WB088 VARIG AIRLINES (VAR) 1 WA008 WA011 VIETNAM AIRLINES (VIE) 1 WB336–WB337 WC361–WC364 WC371–WC374 IDENTIFICATION BY VARIABLE NUMBER Variable Group WA001–WA017 1 WA076–WA080 1 WA086–WA093 1 WA101–WA104 1 WA116–WA119 1 WA131–WA137 1 WA171–WA175 1 WA196–WA198 1 WA206–WA212 1 WA221–WA223 1 WA231–WA232 1 WA241–WA250 1 WA261–WA266 1 WA281–WA283 1 WA301–WA304 1 WB001–WB021 1 WB031–WB046 1 WB051–WB088 1 WB101–WB106 1 WB121–WB125 1 WB131–WB144 1 WB151–WB155 1 WB161–WB177 1 WB181–WB194 1 WB201–WB215 1 WB231–WB247 1 WB271–WB273 1July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 13 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

WB276–WB286 1 WB291–WB302 1 WB306–WB307 1 WB311–WB337 1 WB341–WB342 1 WB366–WB368 1 WB371–WB388 1 WB406 1 WB411–WB413 1 WB416–WB439 1 WB446–WB453 1 WB476 1 WB481–WB484 1 WB501–WB512 1 WB531–WB537 1 WB551–WB554 1 WB591–WB597 1 WB601–WB606 1 WB611–WB622 1 WB631–WB638 1 WB646–WB649 1 WC051–WC073 1 WC101–WC104 1 WC111–WC119 1 WC221–WC222 1 WC241–WC243 1 WC281–WC290 1 WC301–WC308 1 WC361–WC364 1 WC371–WC374 1 WC381–WC395 1 WC441 1 WC446–WC449 1 WC456–WC459 1 WC486–WC493 1 WC506–WC508 1 WC521–WC522 1 WC531–WC535 1 WC546–WC547 1 Variable GroupJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 14 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

2. Spares Affected
None. B. Concurrent Requirements The service bulletin(s)listed below must be done before or at the same time as this service bulletin: WC556 1 WC566–WC567 1 WD001–WD002 1 WD011–WD014 1 WD031–WD032 1 WD046–WD047 1 WD501–WD507 1 WD521–WD536 1 WD546–WD552 1 WD561–WD571 1 WD581–WD594 1 WD606–WD609 1 WD621–WD632 1 WD651–WD657 1 WD671–WD675 1 WD691–WD700 1 WD741–WD745 1 WD761–WD766 1 WD786–WD787 1 WD796–WD797 1 WD826–WD828 1

Company Service Bulletin Description Smiths Aerospace 1000ELM-24-666 Gives the procedures to install an enclosure tray on the heat shield of the ELMS P100 power panel Smiths Aerospace 2000ELM-24-667 Gives the procedures to install an enclosure tray on the heat shield of the ELMS P200 power panel Smiths Aerospace 3000ELM-24-668 Gives the procedures to install an enclosure tray on the heat shield of the ELMS P300 power panel Variable GroupJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 15 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

C. Reason Accomplishment of the changes in this service bulletin will prevent a possible fire and or smoke and subsequent damage to insulation blanket and wiring below Electrical Load Management System (ELMS) panels. An ELMS contactor failure in a P100, P200 or P300 power panel can create molten debris. If the molten debris from the overheated ELMS contactor is not contained, damage to components from smoke and heat can occur and the smoke and heat can cause injury to persons. One operator reported that an airplane on the ground experienced smoke and heat damage from insulation blankets that smouldered after molten debris from a P200 ELMS power panel fell on the insulation blankets. When a contactor in the ELMS panel fails and overheats, the heat can cause molten debris to fall out of the panel. The bottom of the ELMS panel are open without protection to prevent hot debris from falling on to the insulation blankets below the panel. This service bulletin installs an enclosure tray on the heat shield of the ELMS panel. The enclosure tray will contain the debris and prevent hot debris from falling on the blankets and components below the ELMS panel in the event of a contactor failure. Containment of the hot debris will prevent damage from smoke and heat and reduce the risk to personal safety. Boeing Service Related Problem (SRP) 777-SRP-24-0131 is related to this service bulletin. D. Description Get access to the main equipment center. Change the heat shields on the P100, P200, and P300 power panels as given in the related Smiths Aerospace service bulletins. Close access to the main equipment center. Return the airplane to a serviceable condition. E. Compliance Boeing recommends that this service bulletin be incorporated within 60 months of the date on 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 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 16 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

G. Manpower

The changes to the P100 power panel as given in Smiths Aerospace Service Bulletin 1000ELM-24- 666 are not included.

The changes to the P200 power panel as given in Smiths Aerospace Service Bulletin 2000ELM-24- 667 are not included.

The changes to the P300 power panel as given in Smiths Aerospace Service Bulletin 3000ELM-24- 668 are not included. H. Weight and Balance Changes

I. Electrical Load Data Not changed. J. References 1. Existing Data: a. Engineering Change Memo PRR62184-1

Task Number of Persons Task Hours Elapsed Hours Open Access 1 0.50 0.50 Close Access 1 0.50 0.50 TOTAL FOR EACH AIRPLANE 1.00 1.00

Task Number of Persons Task Hours Elapsed Hours Open Access 1 0.50 0.50 Close Access 1 0.50 0.50 TOTAL FOR EACH AIRPLANE 1.00 1.00

Task Number of Persons Task Hours Elapsed Hours Open Access 1 0.50 0.50 Close Access 1 0.50 0.50 TOTAL FOR EACH AIRPLANE 1.00 1.00

Airplane Change in Weight (Pounds) Change in Moment (Pound-Inches) 777-200 +2.9 +914.8

Airplane Change in Weight (Pounds) Change in Moment (Pound-Inches) 777-300 +2.9 +332.8July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 17 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

b. 777 Aircraft Maintenance Manual (AMM) 24-22-00 c. Boeing Drawing 012W6100 d. Boeing Parts Standards Document D-590 e. Service Related Problem (SRP) 777-SRP-24-0131 f. Smiths Aerospace SB 1000ELM-24-666 g. Smiths Aerospace SB 2000ELM-24-667 h. Smiths Aerospace SB 3000ELM-24-668 2. Data supplied with this Service Bulletin:
None. 3. Installation Drawings Used in the Preparation of this Service Bulletin:
None. K. Publications Affected

L. Interchangeability and In termixability of Parts Refer to Paragraph 2.C., Parts Necessary For Each Airplane, for interchangeability and intermixability information. Publication Chapter-Section 777 Illustrated Parts Catalog 24-09 Component Maintenance Manual 24-08-16, 24-08-36, 24-08-73July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 18 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

BLANK PAGEJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 19 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

2. MATERIAL INFORMATION A. Material - Price and Availability Boeing can supply the kits shown in Paragraph 2.C., Parts Necessary For Each Airplane, and Paragraph 2.D., Parts Necessary to Change Spares, as shown below. If there is a limit to the quantity (QTY) of available kits, a supply sequence is given by Spares. More kits become available as shown in the Reorder Lead Time (ROLT). ROLT is calculated from the date Boeing gets the purchase order.

B. Industry Support Information At the time of release of this service bulletin, warranty remedies have not been determined. A subsequent revision or Information Notice will address the warranty remedies available, if any. Kit Number Name Date QTY ROLT (Weeks) Unit Price thru Dec 31/07 005W3353-1 Top Kit - ELMS Containment Shield Installation 6/29/07 1 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 7/30/07 49 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 8/27/07 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 10/23/07 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 12/03/07 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 1/30/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 3/31/07 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 5/30/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 7/29/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 9/30/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 12/03/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 1/30/08 50 16 $1,729.00 005W3353-1 Top Kit - ELMS Containment Shield Installation 3/30/09 51 16 $1,729.00July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 20 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

C. Parts Necessary For Each Airplane 1. Kits/Parts: NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts and Materials Supplied by the Operator, are necessary for each airplane. To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.

2. Parts and Materials Supplied by the Operator:
None. 3. Parts Modified and Reidentified: Refer to the applicable Smiths Aerospace Service Bulletin in the subsequent table.

4. Parts Removed and Not Replaced: None. Kit 005W3353

New Part Number QTY Name Notes -1 005W3353-1 - Top Kit - ELMS Containment Shield Installation (b) 284W2093-1 1 BRACKET ASSY - P100 PANEL HEAT SHIELD 284W2093-3 1 BRACKET ASSY - P200 PANEL HEAT SHIELD 284W2093-5 1 BRACKET ASSY - P300 PANEL HEAT SHIELD BACR15FP4E3R (BACR15BA4AD3C- optional) 24 RIVET, BLIND (a) (a) If grip length shown is not available at Boeing, fasteners supplied in kits may be one grip length longer than indicated. Also, if any fasteners part numbers listed are not available or have been superseded, substitute fasteners may be supplied in kits. Boeing Document D-590 and Boeing Drawing 012W6100 are used to determine the part numbers used as substitutes. (b) The enclosure tray is also known as a containment shield or a bracket assembly.

Power Panel Service Bulletin P100 1000ELM-24-666 P200 2000ELM-24-667 P300 3000ELM-24-668July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 21 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

D. Parts Necessary to Change Spares Refer to the applicable Smiths Aerospace Service Bulletin in the subsequent table.

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. Power Panel Service Bulletin P100 1000ELM-24-666 P200 2000ELM-24-667 P300 3000ELM-24-668July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 22 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

BLANK PAGEJuly 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 23 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

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. 3. The work instructions are divided into work packages. Task Hours and Elapsed Hours for each package are given in Paragraph 1.G., Manpower. You can do each work package independently. 4. These work instructions refer to procedures included on other Boeing documents. When the words "refer to" are used and the operator has an accepted alternative procedure, the accepted alternative procedure can be used. When the words "as given in" are included in the instruction, the procedure in the Boeing document must be used. B. WORK INSTRUCTIONS Work Package 1 1. Remove electrical power from the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 2. Get access to the main equipment center. Open the 117AL Main Equipment Center Access Door. 3. Locate the Electrical Load Management System (ELMS) P100 power panel. See Figure 1. WARNING: IF THE ELECTRICAL POWER IS NOT REMOVED FROM THE AIRPLANE, THE POWER PANEL WILL CONTAIN HIGH VOLTAGES AND CURRENTS THAT CAN CAUSE AND INJURY TO PERSONS AND DAMAGE EQUIPMENT. 4. Change the heat shield as given in the Smiths Aerospace SB 1000ELM-24-666. 5. Close access to the main equipment center. Close the 117AL Main Equipment Center Access Door. 6. Restore electrical power to the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 7. Put the airplane back to a serviceable condition.July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 24 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

Work Package 2 1. Remove electrical power from the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 2. Get access to the main equipment center. Open the 117AL Main Equipment Center Access Door. 3. Locate the ELMS P200 power panel. See Figure 1. WARNING: IF THE ELECTRICAL POWER IS NOT REMOVED FROM THE AIRPLANE, THE POWER PANEL WILL CONTAIN HIGH VOLTAGES AND CURRENTS THAT CAN CAUSE AND INJURY TO PERSONS AND DAMAGE EQUIPMENT. 4. Change the heat shield as given in the Smiths Aerospace SB 2000ELM-24-667. 5. Close access to the main equipment center. Close the 117AL Main Equipment Center Access Door. 6. Restore electrical power to the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 7. Put the airplane back to a serviceable condition. Work Package 3 1. Remove electrical power from the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 2. Get access to the main equipment center. Open the 117AL Main Equipment Center Access Door. 3. Locate the ELMS P300 power panel. See Figure 1. WARNING: IF THE ELECTRICAL POWER IS NOT REMOVED FROM THE AIRPLANE, THE POWER PANEL WILL CONTAIN HIGH VOLTAGES AND CURRENTS THAT CAN CAUSE AND INJURY TO PERSONS AND DAMAGE EQUIPMENT. 4. Change the heat shield as given in the Smiths Aerospace SB 3000ELM-24-668 service bulletin. 5. Close access to the main equipment center. Close the 117AL Main Equipment Center Access Door. 6. Restore electrical power to the airplane. Refer to 777 AMM 24-22-00 as an accepted procedure. 7. Put the airplane back to a serviceable condition.FIGURE 1: LOCATION OF THE ELMS POWER PANELS July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 25 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

FIGURE 1: LOCATION OF THE ELMS POWER PANELS

MAIN EQUIPMENT CENTER (RIGHT, LOOKING AFT) MAIN EQUIPMENT CENTER

(LEFT, LOOKING AFT) MAIN EQUIPMENT CENTER P100 P200 P300

P200 RIGHT

P300 AUXILIARY POWER PANEL

POWER PANEL P100 LEFT POWER PANEL FWD



### A SEE A



### B B SEE B SEE

3 1

21420298

(SHEET 1 OF 2)FIGURE 1: LOCATION OF THE ELMS POWER PANELS July 20, 2007 777-24-0106 BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 26 of 26 

### BOEING SERVICE BULLETIN 777-24-0106

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

STEP TASK NAME IDENTIFICATION QTY MORE DATA 1 Locate ELMS P100 Panel - 1 2 Locate ELMS P200 Panel - 1 3 Locate ELMS P300 Panel - 1

(SHEET 2 OF 2)