January 09, 2003

Revision 2: October 26, 2006 777-23-0176

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 1 of 23

Commercial

Airplane

Group 777

Service Bulletin

Number: 777-23-0176

Date: January 09, 2003

Revision 2: October 26, 2006

ATA System: 2339

SUBJECT: COMMUNICATIONS - Cabin Management System (CMS) - Change the Operational 

Software

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Unpublished Work - All Rights Reserved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 777-23-0176

Table of Contents

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

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

1. PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

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

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

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

E. Special Tooling - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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

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

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

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
 Table of Contents

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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-23-0176 Revision Transmittal Sheet

Date: January 09, 2003

Revision 2: October 26, 2006

ATA System: 2339

SUBJECT: COMMUNICATIONS - Cabin Management System (CMS) - Change the Operational 

Software

This Revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION

No more work is necessary on airplanes that have accomplished the intent of Boeing 777-23-0141 Service 

Bulletin.

REASON FOR REVISION

This revision is sent to make Boeing 777-23-0141 Service Bulletin a prior requirement for Boeing 777-23-0176 

Service Bulletin. Accomplishing 777-23-0141 Service Bulletin ensures Cabin Management System (CMS) 

hardware and software compatibility.

These sections were changed:

1. In Summary/Concurrent Requirements, added Boeing Service Bulletin 777-23-0141.

2. In Planning Information, Paragraph 1.B., added Boeing service Bulletin 777-23-0141.

3. In Planning Information, Paragraph 1.C., added a list of the sections of the service bulletin that were 

changed.

4. In Planning Information, Paragraph 1.D., added Revision 2 information.

5. In Planning Information, Paragraph 1.J.1., added Boeing Service Bulletin 777-23-0141.

6. In Accomplishment Instructions, Paragraph 3.B.10.d., added steps to complete Configuration Database 

(CDB) changes and get the Buyer Furnished Equipment (BFE) files.

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

paragraph for changes.

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.
 

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BOEING SERVICE BULLETIN 777-23-0176

REVISION HISTORY

Original Issue: January 9, 2003

Revision 1: March 11, 2004

Revision 2: October 26, 2006
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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-23-0176 Summary

Date: January 09, 2003

Revision 2: October 26, 2006

ATA System: 2339

SUBJECT: COMMUNICATIONS - Cabin Management System (CMS) - Change the Operational 

Software

CONCURRENT REQUIREMENTS

Boeing service bulletin 777-23-0010, is necessary to be accomplished prior to or concurrent with this service 

bulletin on the same airplanes.

Boeing service bulletin 777-23-0141, is necessary to be accomplished prior to this service bulletin. 

BACKGROUND

Boeing Service Related Problem (SRP) 777-SRP-24-0091 is related to this service bulletin.

The change described in this service bulletin will change the operation of cabin lighting system when the CABIN/

UTILITY switch is installed.

We have received numerous reports of smoke or flames in the passenger cabin related to the wiring for the 

passenger cabin in-flight entertainment system, cabin lighting and passenger seats. It is not easy to remove 

the electrical power to these systems to stop the smoke and flames.

A CABIN/UTILITY switch can be installed to remove power to some systems in the passenger cabin. This 

change to the cabin management system (CMS) operational software (OPS) will change the way various 

lighting systems operate when the switch is set to "OFF".

When the CABIN/UTILITY switch is set to OFF, all night lights, reading lights and attendant work lights will come 

on. Commands from the attendant switch panel for night light operation will be ignored. A message will be 

shown on the cabin control panels which says "REDUCED POWER CONDITION - Fluorescent lights may be 

off. Night lights are locked on". This message replaces the Function Lock-Out - Reduced Power pop-up screen.

When the CABIN/UTILITY switch is set to ON, control of the cabin lighting systems by the cabin control panels 

is put back to normal and the REDUCED POWER CONDITION message is removed.

The cabin control panels will show the state of the CABIN/UTILITY switch on the Input Monitor - ARINC 629 Bus 

screen.
 

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BOEING SERVICE BULLETIN 777-23-0176

ACTION

Install a new OPS in the Cabin Area Control Panel (CACP), Zone Management Units (ZMU), Cabin System 

Management Unit (CSMU) and the Cabin System Control Panel (CSCP). Make a change to the CMS 

configuration database (CDB). Install the new database in the CMS components.

EFFECTIVITY

All 777 airplanes variable numbers WA002-WA017, WA076-WA080, WA086-WA093, WA116-WA119, WA131-

WA137, WA171-WA175, WA196-WA198, WA206-WA209, WA261-WA266, WB001-WB015, WB051-WB082, 

WB101-WB104, WB121-WB125, WB131-WB132. 

COMPLIANCE

No compliance time is given.

INDUSTRY SUPPORT INFORMATION

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

MANPOWER

MATERIAL INFORMATION

None.

Airplanes Total Task Hours Elapsed Hours

All 2.0 2.0
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Commercial

Airplane

Group 777

Service Bulletin

Number: 777-23-0176

Date: January 09, 2003

Revision 2: October 26, 2006

ATA System: 2339

SUBJECT: COMMUNICATIONS - Cabin Management System (CMS) - Change the Operational 

Software

1. PLANNING INFORMATION

A. Effectivity

1. Airplanes

Refer to Service Bulletin Index Document D6-24W001 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 61887K for data about this change.

Airplane models:

777-200

IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER

AIR INDIA (AIN)

1 WA007 WB058–WB059 WB070

ALL NIPPON AIRWAYS (ANA)

1 WA131–WA137

BOEING AIRCRAFT TRADING (BTU)

1 WA079–WA080

BRITISH AIRWAYS (BAB)

1 WA076–WA078 WB001–WB015

CHINA SOUTHERN AIRLINES (GUN)

1 WA116–WA119 WB121–WB125

GROUP CONFIGURATION DESCRIPTION

1 - Airplanes with the Cabin Management System 

(CMS)
 

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BOEING SERVICE BULLETIN 777-23-0176

EMIRATES (EAD)

1 WA196–WA198 WB101–WB104

JAL DOMESTIC (JAS)

1 WA206–WA209

JAL INTERNATIONAL (JAL)

1 WA171–WA175

KOREAN AIR (KAL)

1 WB131–WB132

THAI AIRWAYS INTERNATIONAL (TII)

1 WA086–WA093

UNITED AIRLINES (UAL)

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

WB051–WB057 WB060–WB069 WB071 WB074–WB082

VARIG AIRLINES (VAR)

1 WA008 WA011 WB072–WB073

IDENTIFICATION BY VARIABLE NUMBER

2. Spares Affected

None.

B. Concurrent Requirements

Boeing service bulletin 777-23-0010, is necessary to be accomplished prior to or concurrent with this 

service bulletin on the same airplanes.

Variable Group

WA002–WA017 1

WA076–WA080 1

WA086–WA093 1

WA116–WA119 1

WA131–WA137 1

WA171–WA175 1

WA196–WA198 1

WA206–WA209 1

WA261–WA266 1

WB001–WB015 1

WB051–WB082 1

WB101–WB104 1

WB121–WB125 1

WB131–WB132 1
 

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BOEING SERVICE BULLETIN 777-23-0176

Boeing service bulletin 777-23-0141, is necessary to be accomplished prior to this service bulletin. 

C. Reason

Boeing Service Related Problem (SRP) 777-SRP-24-0091 is related to this service bulletin.

The change described in this service bulletin will change the operation of cabin lighting system when 

the CABIN/UTILITY switch is installed.

We have received numerous reports of smoke or flames in the passenger cabin related to the wiring 

for the passenger cabin in-flight entertainment system, cabin lighting and passenger seats. It is not 

easy to remove the electrical power to these systems to stop the smoke and flames.

A CABIN/UTILITY switch can be installed to remove power to some systems in the passenger cabin. 

This change to the cabin management system (CMS) operational software (OPS) will change the way 

various lighting systems operate when the switch is set to "OFF".

When the CABIN/UTILITY switch is set to OFF, all night lights, reading lights and attendant work lights 

will come on. Commands from the attendant switch panel for night light operation will be ignored. A 

message will be shown on the cabin control panels which says "REDUCED POWER CONDITION - 

Fluorescent lights may be off. Night lights are locked on". This message replaces the Function LockOut - Reduced Power pop-up screen.

When the CABIN/UTILITY switch is set to ON, control of the cabin lighting systems by the cabin 

control panels is put back to normal and the REDUCED POWER CONDITION message is removed.

The cabin control panels will show the state of the CABIN/UTILITY switch on the Input Monitor - 

ARINC 629 Bus screen.

Revision 1 is issued to correct the reference to the Boeing Configuration Database Generator (CDG) 

User Manual from D634W602-1 to D634W601-1, Version 285W0304-6 or later. The detailed 

instructions for changes to the cabin attendant work lights functions have also been changed. Part 

(2) is added for airplanes with the ground service bus loss special function (in the CDB) but no crew 

rest area. The necessary CDG software disk set 285W0304-6, with software 285W0347-06, is added 

to the Material Information data.

Revision 2 is sent to make Boeing 777-23-0141 Service Bulletin a prior requirement for Boeing 777-

23-0176 Service Bulletin. Accomplishing 777-23-0141 Service Bulletin ensures Cabin Management 

System (CMS) hardware and software compatibility.

These sections were changed:

1. In Summary/Concurrent Requirements, added Boeing Service Bulletin 777-23-0141.

2. In Planning Information, Paragraph 1.B., added Boeing service Bulletin 777-23-0141.

3. In Planning Information, Paragraph 1.C., added Revision 2 information.

4. In Planning Information, Paragraph 1.D., added Revision 2 information.

5. In Planning Information, Paragraph 1.J.1., added Boeing Service Bulletin 777-23-0141.
 

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BOEING SERVICE BULLETIN 777-23-0176

6. In Accomplishment Instructions, Paragraph 3.B.10.d., added steps to complete Configuration 

Database (CDB) changes and get the Buyer Furnished Equipment (BFE) files.

D. Description

A new OPS is installed in the Cabin Area Control Panel (CACP), the Zone Management Units (ZMU), 

the Cabin System Management Unit (CSMU) and the Cabin System Control Panel (CSCP). A change 

to the CMS configuration database (CDB) is made. The new database is installed in the CMS 

components.

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

service bulletin. It is assumed that the changes were made correctly even though the wrong User 

Manual was referenced.

Revision 2 - No more work is necessary on airplanes that have accomplished the intent of Boeing 777-

23-0141 Service Bulletin. 

E. Compliance

No compliance time is given.

F. Approval

This service bulletin was examined by the Federal Aviation Administration (FAA). The changes 

specified in this service bulletin comply with the applicable regulations and are FAA approved, as well 

as European Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/

JAA approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval 

were based on the airplane in its original Boeing delivery configuration or as modified by other 

approved Boeing changes.

If an airplane has a non-Boeing modification or repair that affects a component or system also affected 

by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency 

approval before incorporating this service bulletin.

G. Manpower

The table below shows an estimate of the task-hours necessary to do this change for each airplane. 

This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator 

task-hour data if necessary. The estimate does not include lost time. These are some examples of 

lost time:

— Time to adjust to the workplace

— Time to schedule the work

— Time to examine the work

— Time to cure the materials

— Time to make the parts

— Time to find the tools.

Task

Number of 

Persons Task-Hours Elapsed Hours

Change 1 1.75 1.75

Test 1 0.25 0.25

TOTAL FOR EACH AIRPLANE 2.0 2.0
 

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BOEING SERVICE BULLETIN 777-23-0176

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

J. References

1. Existing Data:

a. Engineering Change Memo PRR61887

b. Service Related Problem (SRP) 777-SRP-24-0091

c. 777 Airplane Maintenance Manual (AMM) 23-39-00

d. Boeing Service Bulletin 777-23-0141

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 Intermixability of Parts

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

Publication Chapter-Section

777 Maintenance Manual 23-39

777 Illustrated Parts Catalog 23-39

777 Flight Attendant Manual 2A.60, 3.10
 

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BOEING SERVICE BULLETIN 777-23-0176

2. MATERIAL INFORMATION

A. Material - Price and Availability

None.

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:

3. Parts Modified and Reidentified:

None.

4. Parts Removed and Not Replaced:

None.

D. Parts Necessary to Change Spares

None.

E. Special Tooling - Price and Availability

None.

Part Number / 

Specification QTY Name Notes

285W0283-4 1 Disk Set (a)

285W0292-4 1 Disk set (b)

285W0295-7 1 Disk Set (c)

285W0298-6 1 Disk Set (d)

285W0304-6 1 Disk Set (e)

(a) Disk Set with ZMU OPS 2378-BCE-018-04

(b) Disk Set with CSMU OPS 2372-BCE-012-04

(c) Disk Set with CSCP OPS 2372-BCE-011-07

(d) Disk Set with CACP OPS 231A-BCE-00Y-06

(e) Disk Set with CDG software 285W0347-06.

NOTE: This software is for the configuration database generator (CDG) tool and is not 

installed on the airplane.
 

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BOEING SERVICE BULLETIN 777-23-0176

F. Special Tooling Necessary to do this Service Bulletin

No special tools or equipment are necessary to do the change in this service bulletin. But, 

maintenance and overhaul tools in the manuals given in Paragraph 1.J., References, can be 

necessary. Examine operator tool supply to make sure all necessary tools are available.
 

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BOEING SERVICE BULLETIN 777-23-0176

3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL INFORMATION

NOTE:

1. Use sufficient precautions to make sure that system components, airplane electrical 

wires and structures, are not damaged by drills, metal shavings and other contamination 

while you do work. Metal shavings or contamination left in the airplane can touch wire 

bundles and cause chafing damage to electrical wires. Chafed electrical wires can 

cause arcing damage.

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

definition of the acronyms.

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

4. The Configuration Database Generator (CDG) is a ground support engineering software 

tool that is hosted on a personal computer (PC) and used to build the Configuration 

Database (CDB) media sets for individual airplanes.

B. WORK INSTRUCTIONS

1. At the CSCP, remove the CSCP core partition (CP) software, the CACP OPS, the ZMU OPS and 

the CSMU OPS. Refer to the 777 AMM 23-39-00, Operational Program Software Removal from 

the CSCP Mass Storage. 

2. Do a phase I installation of the CSCP-CP software 2372-BCE-011-07. Use the disk set 

285W0295-7. Refer to the 777 AMM 23-39-00, Phase I Data Installation from the CSCP Disk 

Drive to the CSCP Mass Storage.

3. Do a phase I installation of the CACP OPS software 231A-BCE-00Y-06. Use the disk set 

285W0298-6. Refer to the 777 AMM 23-39-00, Phase I Data Installation from the CSCP Disk 

Drive to the CSCP Mass Storage.

4. Do a phase I installation of the ZMU OPS software 2378-BCE-018-04. Use the disk set 

285W0283-4. Refer to the 777 AMM 23-39-00, Phase I Data Installation from the CSCP Disk 

Drive to the CSCP Mass Storage.

5. Do a phase I installation of the CSMU OPS software 2372-BCE-012-04. Use the disk set 

285W0292-4. Refer to the 777 AMM 23-39-00, Phase I Data Installation from the CSCP Disk 

Drive to the CSCP Mass Storage.

6. Do a phase II installation of the new CSCP-CP software part number 2372-BCE-011-07. Refer 

to the 777 AMM 23-39-00, Operational Program Software Installation (Phase II). 

7. Do a phase II installation of the new CACP OPS software part number 231A-BCE-00Y-06. Refer 

to the 777 AMM 23-39-00, Operational Program Software Installation (Phase II). 

8. Do a phase II installation of the new ZMU OPS software part number 2378-BCE-018-04. Refer 

to the 777 AMM 777 AMM 23-39-00, Operational Program Software Installation (Phase II). 
 

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BOEING SERVICE BULLETIN 777-23-0176

9. Do a phase II installation of the new CSMU OPS software part number 2372-BCE-012-04. Refer 

to the 777 AMM 23-39-00, Operational Program Software Installation (Phase II). 

10. Do a phase I installation of the new configuration database. Refer to the 777 AMM 23-39-00, 

Phase I Data Installation From the CSCP Disk Drive to the CSCP Mass Storage. To get the new 

database, do these steps:

NOTE: Refer to the Boeing Configuration Database Generator (CDG) User Manual D634W601-

1, Version 285W0304-6 or later.

a. Get ready to make a change to the configuration database (CDB).

(1) If not installed, install the CDG software tool 285W0347-06 (on disk set 285W0304-6).

(2) Load the serviceable database file.

(3) Open the database file.

(4) Do a consistency check. Make the menu selections "Utilities - Check Consistency".

(5) When the check is completed, make the menu selection "Print". Keep the printed data 

to use in a subsequent step.

(6) Make the menu selections "Utilities - Generate reports".

(7) Put a check mark in the box for "Special Functions" (Section 16). Make the selection 

"Accept".

(8) When the report is completed, make the selections "Print" and then "Exit". Keep the 

printed data to use in a subsequent step.

(9) Make the menu selections "File - Save as". Make a new name for the database and 

save the file.

NOTE: The use of the characters “CDB” (i.e. “mmm” code) in the software part

number is exclusively reserved for Boeing generated CMS database software.

Boeing recommends the use of the customer three letter manufacturing

designator.

b. Change the cabin attendant work lights functions in the CDB

(1) Make the menu selections "Data - Attendant Work Lights"

(2) See the printed data made before and find all the attendant work lights in the Special 

Functions part.

(3) For each attendant work light found, write the same OEU data (Input, Output and 

Location Description).

(4) Accept the screen when done.

(5) Make the menu selections "Data-Special Functions".
 

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(6) Remove the attendant work lights from the special functions by removing the check 

mark in the In-Config box.

(7) Accept the screen when done.

(8) Make the menu selections "File-Save".

c. Create the Cabin Utility Switch function.

(1) Make the menu selections "Data - Special Functions". If no crew rest area is installed, 

and the special function "Ground service bus loss" is not found, go to the step to check 

the database and make the data load disks. For these airplanes it is not necessary to 

create the Cabin Utility Switch function.

(2) If no crew rest area is installed, and the special function "Ground service bus loss" is 

found, do these steps.

(a) Make the menu selections "Data - Special Functions".

(b) Find the special function that has "Ground service bus loss" as the input type 

(usually Special Function number 62). Use the printed data made before to find 

the special function number.

(c) Go to the special function number 79 and put an X in the "In-Config" box. If this 

special function number is already used, find a special function number that is not 

used and is higher than the one for the Ground service bus loss entry.

(d) Make a click on the "Input Type" box. From the pull down menu, make the 

selection "CMS Discrete/Signal".

(e) Make a click on the "CMS Discrete/Signal" box, then make the selection "Cabin 

Utlity Switch". 

(f) Make the selection "Close".

(g) Make a click on the "Description" button and write the description in the box. The 

description could be the same as the description of ground service bus loss 

(GSBL). You can change the words "Ground Service Buss Loss" to "Cabin Utility 

Switch". Make the selection "CLOSE".

(h) Make a selection "Output Type 2", then "Edit - Insert Record".

(i) For each Ground Service Bus Loss special function entry, write the same data to 

the cabin utility switch special function. Use the printed data made before to get 

the Output Type data.

NOTE: The CMS Special Functions can have only ten outputs.

(j) Make the selection "Accept". 

(k) Make the menu selections "File - Save" and go to the step to check the database 

and make the data load disks.
 

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(3) If a crew rest area is installed, and the special function "Ground service bus loss" is not 

found, do these steps.

(a) See the printed data made before and find all the reading lights for the crew rest 

areas not controlled by a PCU (passenger control unit). If no crew rest reading 

lights are found, no more changes to the database are necessary (go to the step 

to check the database and make the data load disks).

(b) Go to the special function number 79 and put an X in the "In-Config" box. If this 

special function number is already used, find a special function number that is not 

used.

(c) Make a click on the input type box. From the pull down menu, make the selection 

"CMS Discrete/Signal".

(d) Make a click in the CMS Discrete/Signal box, then make a selection "Cabin Utility 

Switch".

(e) Make the selection "CLOSE".

(f) Make a click on the "Description" button and write the description in the box. The 

description could be a text mixed from the description of ground service bus loss 

(GSBL) and the crew rest reading light special function. You can change the 

words "Ground Service Buss Loss" to "Cabin Utility Switch". Make the selection 

"CLOSE".

(g) Make a selection "Output Type 2", then "Edit - Insert Record".

(h) For each crew rest reading light found, write the same Output Type data to the 

cabin utility switch special function. Use the printed data made before to get the 

Output Type data.

(i) For each crew rest reading light, make the Initial/Inactive setting "NULL" and the 

Active setting "ON". Make the selection "Close" to get to the Special Functions 

screen.

NOTE: The CMS Special Functions have only ten outputs. If more than one crew

rest area is installed, it is necessary to input at least one light from each

crew rest area. It is recommended that for the flight crew rest area, only

one light is necessary. 

(j) Make the selection "Accept".

(k) Make the menu selections "File - Save" and go to the step to check the database 

and make the data load disks.

(4) If a crew rest area is installed, and the special function "Ground service bus loss" is 

found, do these steps

(a) Make the menu selections "Data - Special Functions".
 

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(b) Find the special function that has "Ground service bus loss" as the input type 

(usually Special Function number 62). Use the printed data made before to find 

the special function number.

(c) Go to the special function number 79 and put an X in the "In-Config" box. If this 

special function number is already used, find a special function number that is not 

used and is higher than the one for the Ground service bus loss entry.

(d) Make a click on the "Input Type" box. From the pull down menu, make the 

selection "CMS Discrete/Signal".

(e) Make a click on the "CMS Discrete/Signal" box, then make the selection "Cabin 

Utlity Switch". 

(f) Make the selection "Close".

(g) Make a click on the "Description" button and write the description in the box. The 

description could be a text mixed from the description of ground service bus loss 

(GSBL) and the crew rest reading light special function. You can change the 

words "Ground Service Buss Loss" to "Cabin Utility Switch". If there is no crew 

rest reading light special function, use the GSBL description only. Make the 

selection "CLOSE".

(h) Make a selection "Output Type 2", then "Edit - Insert Record".

(i) For each Ground Service Bus Loss special function entry, write the same data to 

the cabin utility switch special function. Use the printed data made before to get 

the Output Type data.

NOTE: The CMS Special Functions can have only ten outputs.

(j) See the printed data made before and find all the Crew Rest reading lights. If no 

crew rest reading lights are found, no more changes to the database are 

necessary (go to the step to check the database and make the data load disks).

(k) For each crew rest reading light special function entry, write the same data to the 

cabin utility switch special function.

NOTE: The CMS Special Functions have only ten outputs. If more than one crew

rest area is installed, it is necessary to input at least one light from each

crew rest area. It is recommended that for the flight crew rest area, only

one light is necessary. 

(l) For each crew rest reading light, make the Initial/Inactive setting "NULL" and the 

Active setting "ON". Make the selection "Close" to get to the Special Functions 

screen.

(m) Make the selection "Accept". 

(n) Make the menu selections "File - Save" and go to the step to check the database 

and make the data load disks.

d. Do a check of the database and make the data load disks for the new CDB.
 

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(1) Complete CDB changes.

(2) Do a consistency check. Make the menu selections "Utilities - Check Consistency". 

Remove any critical errors.

(3) Optional - It can be a help to examine the warnings before and after the database 

changes. A differences report can also give more information. Refer to the CDG Users 

Manual D634W601-1 to get the necessary instructions to make these reports.

(4) Get the Buyer Furnished Equipment (BFE) files for the Passenger Entertainment 

System from the supplier for data-load process.

(5) Make Data Load disk set with BFE files. Make the menu selections "Utilities - Create 

Data Load disk". Use an operator selected diskette set part number and make the 

selection "Accept".

NOTE: Do not use the characters "222W0014-" in the diskette set part number.

These characters are to be used only for Boeing made database disk sets. 

(6) When told, put the first blank disk in the drive a: and make the selection "OK".

NOTE: Use only new or reformatted High Density 1.44 Mb disks. Errors can occur if

the disk is not reformatted before use.

(7) When told, remove the disk. Read the instructions to make a label for the removed 

disk.

(8) When told, put the second blank disk in the drive a: and make the selection "OK".

(9) When told, remove the disk. Read the instructions to make a label for the removed 

disk.

11. Install the new configuration database to the CMS LRUs. Refer to the 777 AMM 23-39-00, 

Configuration Database Installation, to get the necessary procedures. 

12. Do a check of the CSMU, CACP and ZMU software part numbers. Refer to the 777 AMM 

23-39-00, Operational Program Software and Configuration Database Verification test.

13. At each door, push the WORK LIGHT switch to the ON position. See that the attendant work 

lights come on.

14. Push the WORK LIGHT switches again and see that all the lights are off.

15. At the cabin system control panel (CSCP), get to the cabin maintenance menus. Make the 

selection CABIN TESTS. When the screen changes, make the selection LAMP TESTS. When 

the screen changes make the selection for the ATTENDANT WORK menu option to ON. See 

that all the attendant work lights come on.

NOTE: If any lights do not come on in this step, it is possible they were not moved from the

Special Function part of the Configuration Database.

16. Make the selection for the ATTENDANT WORK menu option to OFF and see that all the lights 

are off.
 

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17. Put the airplane back to a serviceable condition.