# Boeing Alert Requirements Bulletin 737-25A1876 RB: No revision named

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- Document: [Boeing Alert Requirements Bulletin 737-25A1876 RB](https://openairdocs.org/service-documents/boeing/737-25a1876-rb.md)
- Title as filed: RB-737-25A1876-00--
- Pages: 13
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## Text

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### Page 1

Commercial 
Airplanes
737
Requirements Bulletin
ALERT
Number: 737-25A1876 RB
Original Issue: September 01, 2023
ATA System: 2531
SUBJECT: EQUIPMENT / FURNISHINGS - Galleys - Galley Wire Bundle Protective Wrap
Inspection and Replacement
EXPORT CONTROLLED - This technology or software is subject to the U.S. Export Administration Regulations
(EAR), (15 C.F.R. Parts 730-774). No authorization from the U.S. Department of Commerce is required for
export, re-export, in-country transfer, or access EXCEPT to country group E:1 or E:2 countries/persons per
Supp.1 to Part 740 of the EAR.
9E991ECCN:
Copyright © 2023 The Boeing Company
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document
are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The
Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner,
BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and
Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in
connection with this document unless provided in writing by Boeing.
Original Issue: September 01, 2023
737-25A1876 RB
1 of 13
5.0

### Page 2

Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
2 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT
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Table of Contents
1. EFFECTIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
A. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
B. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. CONCURRENT REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. COMPLIANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. APPROVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
B. Work Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
APPENDIX A: AFFECTED GALLEY PART NUMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Export Controlled ECCN: 9E991
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Original Issue: September 01, 2023
737-25A1876 RB
3 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

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Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
4 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT
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### Page 5

Commercial 
Airplanes
737
Requirements Bulletin
ALERT
Number: 737-25A1876 RB
Original Issue: September 01, 2023
ATA System: 2531
SUBJECT: EQUIPMENT / FURNISHINGS - Galleys - Galley Wire Bundle Protective Wrap
Inspection and Replacement
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN
PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT
TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE
NEW OWNER. THIS IS AN ENHANCED REQUIRED FOR COMPLIANCE DOCUMENT. THE BOEING
PROCESSES USED TO CREATE THE SERVICE BULLETIN (SB) AND THE REQUIREMENTS BULLETIN
(RB) ENSURE THAT THE INFORMATION BETWEEN "RC START" AND "RC END" IN THE SB ARE IDENTICAL
TO THE INFORMATION IN THE SAME SECTIONS (COMPLIANCE, WORK INSTRUCTIONS…) OF THE RB
WHICH THE SB REFERS TO AS THE RELATED DOCUMENT.
1. Effectivity
A. Airplanes
This bulletin is applicable to 737-800 Airplane(s), line number(s) 178, 186, 266, 420-421, 426,
444, 479-480, 522 in 2 Group(s). Where the effectivity is presented with hyphens between line
numbers, the airplane applicability means "through" and "inclusive", e.g. line numbers 1-9 means
line numbers 1 through 9 inclusive.
The Variable Numbers and Group Information for the applicable airplanes is given below.
DESCRIPTIONCONFIGURATIONGROUP
737-800 airplanes delivered with Galleys G1, G2, G4B and G7-1
737-800 airplanes delivered with Galleys G1, G2 and G4B-2
Airplane Models:
737-800
GroupVariable Number
2YC751 - YC752
GroupVariable Number
1YC763 - YC768
GroupVariable Number
2YC902 - YC903
B. Spares Affected
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
5 of 13

### Page 6

None.
2. CONCURRENT REQUIREMENTS
None.
3. COMPLIANCE
The Federal Aviation Administration (FAA) will possibly release an additional Airworthiness Directive related
to Requirements Bulletin 737-25A1876 RB. The Airworthiness Directive will make the compliance tasks
and times given in Requirements Bulletin 737-25A1876 RB mandatory.
When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When
more than one ACTION is given for a CONDITION or an OPTION, do all of the ACTION numbers for that
CONDITION or OPTION.
Accomplish the required action(s), based on the applicable condition(s) in Table(s) 1 through 2, in accordance
with Accomplishment Instructions.
Group 1:
Table 1: Galley Wire Bundle Protective Wrap Replacement
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 31 months after
the Original Issue date of
Requirements Bulletin
737-25A1876 RB.
OPTION 1 : Do an Inspection of
Galley G1, G2, G4B and G7 to
find the part number.
All Airplanes.
OPTION 2: Do a maintenance
records check of Galley G1, G2,
G4B and G7 to find the part
number.
-Within 31 months after
the Original Issue date of
Requirements Bulletin
737-25A1876 RB.
Adjacent to the galley identifica-
tion placard, inspect for an exist-
ing galley modification placard.
Do an Inspection of the modifica-
tion placard.
CONDITION 1: ANY GALLEY
FOUND WITH AN AFFECTED
PART NUMBER
-Before further flight.Replace galley wire bundle spi-
ral wrap protective sleeving with
the BMS 13-81 wire protective
sleeving.
CONDITION 1.1: ANY GALLEY
FOUND WITHOUT MODIFICA-
TION PLACARD INSTALLED
OR ANY GALLEY FOUND
WITH MODIFICATION PLAC-
ARD INSTALLED NOT
MARKED AS MODIFIED PER
SB 25-442
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
6 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 7

Group 1:
Table 1: Galley Wire Bundle Protective Wrap Replacement
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
--No further action required.CONDITION 1.2: ANY GALLEY
FOUND WITH MODIFICATION
PLACARD INSTALLED
MARKED AS MODIFIED PER
SB 25-442
--No further action required.CONDITION 2: ANY GALLEY
FOUND WITHOUT AN AFFECT-
ED PART NUMBER
Group 2:
Table 2: Galley Wire Bundle Protective Wrap Replacement
Repeat Interval
(Not to Exceed)
Boeing Recommended
Compliance Time
ActionCondition
-Within 31 months after
the Original Issue date of
Requirements Bulletin
737-25A1876 RB.
OPTION 1 : Do an Inspection of
Galley G1, G2 and G4B to find
the part number.
All Airplanes.
OPTION 2: Do a maintenance
records check of Galley G1, G2
and G4B to find the part num-
ber.
-Within 31 months after
the Original Issue date of
Requirements Bulletin
737-25A1876 RB.
Adjacent to the galley identifica-
tion placard, inspect for an exist-
ing galley modification placard.
Do an Inspection of the modifica-
tion placard.
CONDITION 3: ANY GALLEY
FOUND WITH AN AFFECTED
PART NUMBER
-Before further flight.Replace galley wire bundle spi-
ral wrap protective sleeving with
the BMS 13-81 wire protective
sleeving.
CONDITION 3.1: ANY GALLEY
FOUND WITHOUT MODIFICA-
TION PLACARD INSTALLED
OR ANY GALLEY FOUND
WITH MODIFICATION PLAC-
ARD INSTALLED NOT
MARKED AS MODIFIED PER
SB 25-442
--No further action required.CONDITION 3.2: ANY GALLEY
FOUND WITH MODIFICATION
PLACARD INSTALLED
MARKED AS MODIFIED PER
SB 25-442
--No further action required.CONDITION 4: ANY GALLEY
FOUND WITHOUT AN AFFECT-
ED PART NUMBER
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
7 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 8

4. APPROVAL
This Requirements Bulletin was examined by the Federal Aviation Administration (FAA). The changes
specified in this document comply with the applicable regulations and are FAA approved, as well as European
Union Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved
airplanes listed in this Requirements Bulletin effectivity. This document and its approval were based on the
airplane in its original Boeing delivery configuration or as modified by other Boeing changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected by
this Requirements Bulletin, the operator is responsible for obtaining appropriate regulatory agency approval
before incorporating this Requirements Bulletin.
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
8 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 9

5.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
NOTE: 1. This is an Enhanced Required for Compliance document. There will be a separate
Service Bulletin (SB) and a separate Requirements Bulletin (RB). If an RB is mandated
by an Airworthiness Directive (AD), then all applicable requirements specified in the
RB must be done. For the related SB, some locations are marked RC Start and RC
End to identify the requirements that are restated from the RB. For the related SB,
the areas between RC Start and RC End, including sub-steps and any figures
identified between RC Start and RC End, must be done to comply with the AD.
Therefore, an Alternative Method of Compliance (AMOC) is required for any deviations
to steps between RC Start and RC End, including substeps and identified figures.
For the related SB, the steps not between RC Start and RC End may be deviated
from using accepted methods in accordance with the operator's maintenance or
inspection program without obtaining approval of an AMOC; this is provided that the
steps between RC Start and RC End, including sub-steps and identified figures, can
still be done as specified, and the airplane can be put back in an airworthy condition.
Figures not required for compliance are omitted from the RB.
2. This is an Enhanced Required for Compliance document. The Boeing processes
used to create the Service Bulletin (SB) and the Requirements Bulletin (RB) ensure
that the information between "RC Start" and "RC End" in the SB are identical to the
information in the same sections (Compliance, Work Instructions...) of the RB which
the SB refers to as the related document.
3. The compliance times for the actions in WORK INSTRUCTIONS are in Compliance.
4. Unless shown differently, these dimensions and tolerances are used:
– Linear dimensions are in inches
– Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus
or minus 0.03 inch
– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch
– Angular tolerance is plus or minus 2 degrees
– Hole dimensions for standard solid rivets and fasteners are in Structural Repair
Manual (SRM) Chapter 51
– Torque Values:
— Values for airframe maintenance tasks are included in Chapter 20 of
737-600/700/800/900 Aircraft Maintenance Manual (AMM).
— Values for electrical maintenance tasks are included in Chapter 20 of
Standard Wiring Practices Manual (SWPM).
5. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative
procedure, the accepted alternative procedure can be used. When the words "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
6. Where the work instructions include installation of a kept part, a new or serviceable
part with the same part number can be installed as an alternative to the kept part.
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
9 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 10

7. If it is necessary to remove more parts for access, you can remove those parts. If
you can get access without removing identified parts, it is not necessary to remove
all of the identified parts. Jacking and shoring limitations must be observed.
8. When more than one OPTION is given for a CONDITION, do only one of the OPTION
numbers. When more than one ACTION is given for a CONDITION or an OPTION,
do all of the ACTION numbers for that CONDITION or OPTION.
9. A maintenance records check can be done provided the part number and if
modification of affected galleys can be conclusively determined from that check.
B. WORK INSTRUCTIONS
Actions Required for Compliance
1. Requirements:
Group 1:
TABLE 1: GALLEY WIRE BUNDLE PROTECTIVE WRAP REPLACEMENT
Refer to the listed proce-
dures in SB 737-25A1876
Original Issue or later ap-
proved revisions as an ac-
cepted procedure
Method of ComplianceActionCondition
Get access to the passenger
compartment.
-OPTION 1: Do an Inspec-
tion of Galley G1, G2,
G4B and G7 to find the
part number.
All Airplanes.
APPENDIX B-
-APPENDIX A
-APPENDIX AOPTION 2: Do a mainte-
nance records check of
Galley G1, G2, G4B and
G7 to find the part num-
ber.
APPENDIX C-Adjacent to the galley
identification placard, in-
spect for an existing galley
modification placard. Do
an Inspection of the modi-
fication placard.
CONDITION 1: ANY GAL-
LEY FOUND WITH AN AF-
FECTED PART NUMBER
PART 1: GALLEY WIRE
BUNDLE PROTECTIVE
WRAP REPLACEMENT
-Replace galley wire bun-
dle spiral wrap protective
sleeving with the BMS 13-
81 wire protective sleev-
ing.
CONDITION 1.1: ANY
GALLEY FOUND WITH-
OUT MODIFICATION
PLACARD INSTALLED OR
ANY GALLEY FOUND
WITH MODIFICATION
PLACARD INSTALLED
NOT MARKED AS MODI-
FIED PER SB 25-442
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
10 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 11

Group 1:
TABLE 1: GALLEY WIRE BUNDLE PROTECTIVE WRAP REPLACEMENT
Refer to the listed proce-
dures in SB 737-25A1876
Original Issue or later ap-
proved revisions as an ac-
cepted procedure
Method of ComplianceActionCondition
--No further action required.CONDITION 1.2: ANY
GALLEY FOUND WITH
MODIFICATION PLACARD
INSTALLED MARKED AS
MODIFIED PER SB 25-442
--No further action required.CONDITION 2: ANY GAL-
LEY FOUND WITHOUT AN
AFFECTED PART NUM-
BER
PART 2: CLOSE ACCESS-
Group 2:
TABLE 2: GALLEY WIRE BUNDLE PROTECTIVE WRAP REPLACEMENT
Refer to the listed proce-
dures in SB 737-25A1876
Original Issue or later ap-
proved revisions as an ac-
cepted procedure
Method of ComplianceActionCondition
Get access to the passenger
compartment.
-OPTION 1: Do an Inspec-
tion of Galley G1, G2 and
G4B to find the part num-
ber.
All Airplanes.
APPENDIX B-
-APPENDIX A
-APPENDIX AOPTION 2: Do a mainte-
nance records check of
Galley G1, G2 and G4B
to find the part number.
APPENDIX C-Adjacent to the galley
identification placard, in-
spect for an existing galley
modification placard. Do
an Inspection of the modi-
fication placard.
CONDITION 3: ANY GAL-
LEY FOUND WITH AN AF-
FECTED PART NUMBER
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
11 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 12

Group 2:
TABLE 2: GALLEY WIRE BUNDLE PROTECTIVE WRAP REPLACEMENT
Refer to the listed proce-
dures in SB 737-25A1876
Original Issue or later ap-
proved revisions as an ac-
cepted procedure
Method of ComplianceActionCondition
PART 1: GALLEY WIRE
BUNDLE PROTECTIVE
WRAP REPLACEMENT
-Replace galley wire bun-
dle spiral wrap protective
sleeving with the BMS 13-
81 wire protective sleev-
ing.
CONDITION 3.1: ANY
GALLEY FOUND WITH-
OUT MODIFICATION
PLACARD INSTALLED OR
ANY GALLEY FOUND
WITH MODIFICATION
PLACARD INSTALLED
NOT MARKED AS MODI-
FIED PER SB 25-442
--No further action required.CONDITION 3.2: ANY
GALLEY FOUND WITH
MODIFICATION PLACARD
INSTALLED MARKED AS
MODIFIED PER SB 25-442
--No further action required.CONDITION 4: ANY GAL-
LEY FOUND WITHOUT AN
AFFECTED PART NUM-
BER
PART 2: CLOSE ACCESS-
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
12 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

### Page 13

GroupDescriptionAffected Part Number
1, 2GALLEY G1101724-601M010
1, 2GALLEY G1101724-701M001
1, 2GALLEY G1101724-1301M001
1, 2GALLEY G2101746-1601
1GALLEY G7101803-1
1, 2GALLEY G4B101725-2101
APPENDIX A:  AFFECTED GALLEY PART NUMBERS
(SHEET 1 OF 1)
Export Controlled ECCN: 9E991
See page 1 for details
Original Issue: September 01, 2023
737-25A1876 RB
13 of 13
REQUIREMENTS BULLETIN 737-25A1876
ALERTALERT

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