# Boeing Alert Service Bulletin 777-35A0029: Revision 1

- Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2013-0864; AD 2014-09-06 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Boeing Alert Service Bulletin 777-35A0029](https://openairdocs.org/service-documents/boeing/777-35a0029.md)
- Title as filed: U.S. DOT/FAA - SB-777-35A0029-01
- Pages: 29
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## Text

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### Page 1

Commercial 
Airplanes
777
Service Bulletin
ALERT
Number: 777-35A0029
Original Issue: June 06, 2012
Revision 1: April 29, 2013
ATA System: 3523
SUBJECT: OXYGEN - Supernumerary Oxygen System - Pressurized Oxygen System Low Pressure
Oxygen Hose Replacement
Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15
CFR 300-774). An export license may be required before it is used for development, production or use by foreign
persons from specific countries. The controller of this data has the individual responsibility to abide by all export
laws.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET
Copyright © 2012 Boeing.
Unpublished Work. All Rights Reserved.
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.
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777-35A0029Revision 1: April 29, 2013
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3.0

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Table of Contents
Revision Transmittal Sheet ............................................ 5
Summary ...................................................... 7
1. PLANNING INFORMATION ........................................ 1 1
A. Effectivity ............................................... 1 1
1. Airplanes ............................................ 1 1
2. Spares Affected ........................................ 1 2
B. Concurrent Requirements ...................................... 1 2
C. Reason ................................................ 1 2
D. Description .............................................. 1 2
E. Compliance .............................................. 1 2
F. Approval ............................................... 1 3
G. Manpower .............................................. 1 3
H. Weight and Balance Changes .................................... 1 3
I. Electrical Load Data ......................................... 1 3
J. References .............................................. 1 4
1. Existing Data: ......................................... 1 4
2. Data Supplied with this Service Bulletin: ........................... 1 4
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 4
K. Publications Affected ........................................ 1 4
L. Interchangeability and Intermixability of Parts ........................... 1 4
M. Software Accomplishment Summary ................................ 1 4
2. MATERIAL INFORMATION ........................................ 1 5
A. Material - Price and Availability ................................... 1 5
B. Industry Support Information .................................... 1 5
C. Parts Necessary for Each Airplane ................................. 1 5
1. Kits/Parts ............................................ 1 5
2. Parts and Materials Supplied by the Operator ........................ 1 6
3. Parts Modified and Reidentified ................................ 1 6
4. Parts Removed and Not Replaced .............................. 1 6
D. Parts Necessary to Change Spares ................................. 1 6
E. Special Tooling - Price and Availability ............................... 1 6
F. Special Tooling Necessary to do this Service Bulletin ....................... 1 7
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 9
A. GENERAL INFORMATION ..................................... 1 9
B. WORK INSTRUCTIONS ....................................... 2 0
FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS ......... 2 1
FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS ................... 2 4
FIGURE 3: SUPERNUMERARY INTERIOR RESTORATION ...................... 2 7
APPENDIX A: OXYGEN HOSE TO STOWAGE BOX INSTALLATION ................... 2 9
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Commercial 
Airplanes
777
Service Bulletin
ALERT
Revision Transmittal SheetNumber: 777-35A0029Original Issue: June 06, 2012
Revision 1: April 29, 2013
ATA System: 3523
SUBJECT: OXYGEN - Supernumerary Oxygen System - Pressurized Oxygen System Low Pressure
Oxygen Hose Replacement
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service
bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin
mandatory.
More work is necessary on the airplane(s) changed in accordance with the original issue of this service bulletin
which did not remove low pressure oxygen hoses 57034-08A050140 and did not install non-conductive low
pressure oxygen hoses 57034-33N040140. These airplanes must replace the low pressure oxygen hose
assemblies in accordance with Figure 1.
No more work is necessary on the airplane(s) changed in accordance with the original issue of this service
bulletin if low pressure oxygen hoses 57034-08A050140 were removed and non-conductive low pressure oxygen
hoses 57034-33N040140 were installed.
REASON FOR REVISION
This revision is sent to correct the reference to the part numbers of the low pressure oxygen hoses in Figure 1.
These sections were changed:
1. Summary, Compliance, Added possible AD paragraph.
2. Paragraph 1.E., Compliance, Added possible AD paragraph.
3. Paragraph 1.K., Publications Affected, Added publications.
4. Figure 1, Changed step table.
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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REVISION HISTORY
June 06, 2012Original Issue:
April 29, 2013Revision 1:
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ALERTALERT

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Commercial 
Airplanes
777
Service Bulletin
ALERT
SummaryNumber: 777-35A0029Original Issue: June 06, 2012
Revision 1: April 29, 2013
ATA System: 3523
SUBJECT: OXYGEN - Supernumerary Oxygen System - Pressurized Oxygen System Low Pressure
Oxygen Hose Replacement
THIS BULLETIN 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 SERVICE BULLETIN TO
THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO
THE NEW OWNER.
CONCURRENT REQUIREMENTS
None.
BACKGROUND
The changes provided in this service bulletin will help prevent damage to the low pressure oxygen hoses that
may be subjected to electrical current. An electrical current condition in the low pressure oxygen hose can cause
the low pressure oxygen hose to melt or burn. This could result in smoke and/or fire in the supernumerary area.
This service bulletin will replace low pressure oxygen hoses with non-conductive low pressure oxygen hoses
located in the supernumerary area. The replacement of the low pressure oxygen hoses will prevent electrical
current from passing through the low pressure oxygen hose internal anti-collapse spring which can cause the
low pressure oxygen hose to melt or burn.
Boeing Service Related Problem (SRP) 777-SRP-35-0050 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 777 FTD 35-11003 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more
information.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more
information.
ReferenceAffectedPlanning Data
Paragraph 1.A.2., Spares AffectedNoSpares Affected
Paragraph 1.E., Compliance and Paragraph
1.F., Approval
YesAD Related
Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change
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ReferenceAffectedPlanning Data
Paragraph 1.I., Electrical Load DataNoElectrical Load Changed
Paragraph 1.K., Publications AffectedYesPublications Affected
Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew
Operations Manual and/or FAA Approved Air-
plane Flight Manual)
Paragraph 2.C.1., Kits/PartsYesKits/Parts Required
Paragraph 2.C.2., Parts and Materials Supplied
by the Operator
NoOperator Supplied Parts/Material
Paragraph 2.F., Special Tooling Necessary to
do this Service Bulletin
NoSpecial Tooling Required
ACTION
Remove the stowage boxes for the oxygen masks. Remove ceiling panels. Replace the existing low pressure
oxygen hoses with the new non-conductive low pressure oxygen hoses. Perform a leak test.
EFFECTIVITY
777F Airplanes with pressurized supernumerary oxygen systems. Refer to Paragraph 1.A.1., Airplanes, for the
list of affected airplanes.
COMPLIANCE
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service
bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin
mandatory.
Boeing recommends that the change given in this service bulletin be done within 36 months after the original
issue date of this service bulletin.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are available for airplanes in warranty as of September 30, 2011. Please refer to
Paragraph 2.B., Industry Support Information.
MANPOWER
Elapsed HoursTotal Task HoursAirplanes
6.606.60TOTAL FOR
EACH AIR-
PLANE
MATERIAL INFORMATION
Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
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BOEING SERVICE BULLETIN 777-35A0029
ALERT  ALERT
-REMOVE CEILING PANELS
-REPLACE THE EXISTING LOW
PRESSURE OXYGEN HOSES
-REMOVE THE STOWAGE BOXES FOR THE  FWD
OXYGEN MASKS
-REPLACE THE EXISTING LOW PRESSURE
OXYGEN HOSES WITH THE NEW NON-CONDUCTIVE
LOW PRESSURE OXYGEN HOSES
-PERFORM A LEAK TEST.
WITH THE NEW NON-CONDUCTIVE
LOW PRESSURE OXYGEN HOSES.
-PERFORM A LEAK TEST.
2156657
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Commercial 
Airplanes
777
Service Bulletin
ALERT
Number: 777-35A0029
Original Issue: June 06, 2012
Revision 1: April 29, 2013
ATA System: 3523
SUBJECT: OXYGEN - Supernumerary Oxygen System - Pressurized Oxygen System Low Pressure
Oxygen Hose Replacement
THIS BULLETIN 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 SERVICE BULLETIN TO
THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO
THE NEW OWNER.
1.    PLANNING INFORMATION
A. Effectivity
1. Airplanes
Refer to Service Bulletin Index Document D624T001 Part 3 for Airplane Variable Number,
LineNumber, and Serial Number data.
This service bulletin is for the airplane(s) shown below.
DESCRIPTIONCONFIGURATIONGROUP
777F airplanes with pressurized supernumerary oxygen systems.-1
777F airplanes which have incorporated service bulletin 777-35-0025.-2
Airplane Models:
777F
GroupVariable Number
2WF001
2WF004
1WF046 - WF059
1WF075
1WF121
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2. Spares Affected
None.
B. Concurrent Requirements
None.
C. Reason
The changes provided in this service bulletin will help prevent damage to the low pressure oxygen
hoses that may be subjected to electrical current. An electrical current condition in the low pressure
oxygen hose can cause the low pressure oxygen hose to melt or burn. This could result in smoke
and/or fire in the supernumerary area.
This service bulletin will replace low pressure oxygen hoses with non-conductive low pressure oxygen
hoses located in the supernumerary area. The replacement of the low pressure oxygen hoses will
prevent electrical current from passing through the low pressure oxygen hose internal anti-collapse
spring which can cause the low pressure oxygen hose to melt or burn.
Revision 01 is sent to correct the reference to the part numbers of the low pressure oxygen hoses in
Figure 1.
Boeing Service Related Problem (SRP) 777-SRP-35-0050 is related to this service bulletin.
D. Description
Remove the stowage boxes for the oxygen masks. Remove ceiling panels. Replace the existing low
pressure oxygen hoses with the new non-conductive low pressure oxygen hoses. Perform a leak test.
Revision 01 - More work is necessary on the airplane(s) changed in accordance with the original issue
of this service bulletin which did not remove low pressure oxygen hoses 57034-08A050140 and did
not install non-conductive low pressure oxygen hoses 57034-33N040140. These airplanes must replace
the low pressure oxygen hose assemblies in accordance with Figure 1. No more work is necessary on
the airplane(s) changed in accordance with the original issue of this service bulletin if low pressure
oxygen hoses 57034-08A050140 were removed and non-conductive low pressure oxygen hoses
57034-33N040140 were installed.
The work in this service bulletin is done in the maintenance zone(s) given below.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones
ZoneModel
215, 216777F
E. Compliance
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to
this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this
service bulletin mandatory.
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Boeing recommends that the change given in this service bulletin be done within 36 months after the
original issue date 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.
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.
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
2.752.751FIGURE 1
1.251.251FIGURE 2
0.350.351Test
1.751.751FIGURE 3
0.250.251Close Access
6.606.60TOTAL FOR EACH AIRPLANE
H. Weight and Balance Changes
None.
I. Electrical Load Data
Not changed.
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J. References
1. Existing Data:
a. Boeing Service Related Problem (SRP) 777-SRP-35-0050
b. Standard Overhaul Practices Manual (SOPM) 20-50-10, 20-70-01
c. 777 Aircraft Maintenance Manual (AMM) 25-21-07, 35-00-00, 35-23-15
2. Data Supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
TitleDrawing Number
Ceiling Installation - Section 41, Lowered Ceiling413W1100
Stowage Installation - Ceiling Mounted435W5101
Flex Hose Installation - Gaseous Oxygen, Supernumerary474W2020
Oxygen Box Installation, Supernumerary474W2630
The table above lists applicable drawings used to prepare this service bulletin. The drawings are
not necessary to make the specified changes, and are not supplied with this service bulletin. The
drawings may not be applicable to all airplane configurations or operators.
K. Publications Affected
1. Publications:
Chapter-SectionPublication
35-23777 Aircraft Maintenance Manual
11-32, 23-42, 25-28, 33-23, 35-23777 Illustrated Parts Catalog
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue
Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the
Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary.
L. Interchangeability and Intermixability of Parts
Refer to Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability
information.
M. Software Accomplishment Summary
Not affected.
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2.    MATERIAL INFORMATION
A. Material - Price and Availability
Boeing can supply the kits shown in Paragraph 2.C., Parts Necessary for Each Airplane. Operators
are encouraged to share schedule requirements with Boeing for incorporation of the service bulletin.
The kits are subject to the terms and conditions of the Boeing standard purchase order acknowledgment.
Prices are in United States Dollars. Terms: Net 30 days.
Reference this service bulletin and submit your purchase order by one of these methods:
1. Order on-line via ATA Spec 2000 or The Boeing PART Page
2. Fax to (206) 662-7145
REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER
AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION
Unit Price as of
the original issue
date of this Ser-
vice Bulletin (US
Dollars)
ROLT as of the
original issue
date of this Ser-
vice Bulletin (Cal-
endar Days)
QTYDateNameKit Number
1450.00139127/10/2012Top Kit005W3542-1
B. Industry Support Information
Boeing warranty remedies are available for 777 airplanes in warranty as of September 30, 2011. For
task hour reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing
Commercial Airplanes Group - Warranties. The kits for airplanes in warranty as of that date will be
supplied at no charge. Send a purchase order for the kits to Boeing Spares. Please refer to this service
bulletin number and reference the airplane variable numbers in your purchase order.
C. Parts Necessary for Each Airplane
1. Kits/Parts
To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.
NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts are necessary for each
airplane. The Top Kit is divided into Figure kits for each installation figure shown in the
table below.
Figure Kit
21Top Kit
11005W3542-1
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ALL
KIT 005W3542-1
Notes
Existing Part
NumberName
Figure
New Part Number
21
Qty
(a) (b)57034-08A050140HOSE ASSY.457034-33N040140
(a) (b)57034-08A050215HOSE ASSY2.57034-33N040215
(a) (b)57034-09A050270HOSE ASSY1.57034-34N040270
(a) This part is used in production.
(b) You cannot use the existing part to replace the new or changed part.
2. Parts and Materials Supplied by the Operator
None.
3. Parts Modified and Reidentified
The parts shown below are changed as shown in this service bulletin. The quantity (QTY) is the
number of parts changed on each airplane.
NotesNew Part NumberNameQTYExisting Part
Number
(a) (b) (c)-Stowage Assembly -
Ceiling Mounted
1435W5100-7B
(a) (b) (d)-Stowage Assembly -
Ceiling Mounted
1435W5100-8B
(a) Make the change in accordance with this service bulletin.
(b) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change done in accordance with this service bulletin was made.
(c) The equivalent production part number is 435W5100-17B.
(d) The equivalent production part number is 435W5100-18B.
4. Parts Removed and Not Replaced
None.
D. Parts Necessary to Change Spares
None.
E. Special Tooling - Price and Availability
None.
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F. Special Tooling Necessary to do this Service Bulletin
No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance
and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine
operator tool supply to make sure all necessary tools are available.
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3.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
CAUTION: READ AND OBEY THE SAFETY PRECAUTIONARY AND GENERAL INSTRUCTIONS
FOR THE OXYGEN SYSTEM BEFORE YOU DO THE MAINTENANCE. REF TO 777
AMM 35-00-00 AS AN ACCEPTED PROCEDURE.
CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL
PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,
METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE
DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR
OTHER ELECTRICAL DAMAGE.
NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. 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
– Torque limits to tighten nuts and bolts are in SRM Chapter 51
4. 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.
5. 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.
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.
7. This service bulletin includes functional test procedures for the systems changed by
this service bulletin. More functional tests can possibly be necessary in accordance
with standard maintenance practices because of interruption to other airplane systems.
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B. WORK INSTRUCTIONS
WARNING: DO NOT PERMIT OIL, GREASE, DIRT OR OTHER FLAMMABLE MATERIALS TO GET
NEAR THE PRESSURE OXYGEN SYSTEM. THESE MATERIALS CAN CAUSE A FIRE
OR AN EXPLOSION WHEN THEY ARE NEAR PRESSURIZED OXYGEN.
CAUTION: SPECIAL CARE MUST BE USED WHEN OXYGEN COMPONENTS ARE HANDLED
AND WORKED WITH. BEFORE WORK IS DONE OF THE OXYGEN SYSTEM, READ
THE SAFETY AND MAINTENANCE PROCEDURES. REFER TO 777 AMM 35-00-00
AND SOPM 20-70-01 AS ACCEPTED PROCEDURES.
CAUTION: USE ONLY OXYGEN CLEAN COMPONENTS IN THE OXYGEN SYSTEM. IF YOU DO
NOT USE OXYGEN CLEAN COMPONENTS, A FIRE OR EXPLOSION CAN OCCUR.
THIS CAN CAUSE DAMAGE TO EQUIPMENT OR INJURIES TO PERSONS.
CAUTION: MAXIMUM PERMITTED OPEN TIME FOR OXYGEN TUBES, HOSES AND
COMPONENTS IS 5 MINUTES.
CAUTION: KEEP A GAP BETWEEN THE ELECTRICAL WIRING AND THE OXYGEN HOSES TO
PREVENT CHAFFING. THIS CAN CAUSE DAMAGE TO THE ELECTRICAL WIRING
OR OXYGEN HOSES. REFER TO 777 AMM 35-00-00 AS AN ACCEPTED PROCEDURE.
1. Replace stowage box low pressure oxygen hoses in accordance with FIGURE 1.
2. Replace low pressure oxygen hoses in the supernumerary ceiling area in accordance with FIGURE
2.
3. Perform leak test. Refer to 777 AMM 35-00-00 as an accepted procedure.
4. Restore supernumerary interior in accordance with FIGURE 3.
5. Put the airplane back into a serviceable condition.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1: April 29, 2013
20 of 29
BOEING SERVICE BULLETIN 777-35A0029
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### Page 21 (OCR)

BOEING SERVICE BULLETIN 777-35A0029
ALERT  ALERT
4
B FOR INSIDE VIEW
FWD
2156661
FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 1 OF 3)
Original Issue: June 06, 2012
Revision 1 April 29, 2013  PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  777-35A0029
Work - See page 1 for details.  21 of 29

### Page 22

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 each airplane.
More DataQtyIdentificationNameTaskStep
Refer to 777 AMM
35-23-15 as an ac-
cepted procedure.
Oxygen masks do
not need to be re-
moved.
4-STOWAGE BOX AS-
SEMBLY
Remove / Keep1
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
457034-08A050140HOSE ASSYRemove2
FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 2 OF 3)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1 April 29, 2013
22 of 29
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### Page 23

More DataQtyIdentificationNameTaskStep
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
Refer to APPENDIX
A for more informa-
tion.
457034-33N040140HOSE ASSYInstall (New)3
Temporary install
Stowage Box. (a)
4-STOWAGE BOX AS-
SEMBLY
Install (Temporary)4
Mark on a non-deco-
rative surface that
the service bulletin
has been done. Re-
fer to SOPM 20-50-
10 Code M as an
accepted procedure.
--STOWAGE ASSEM-
BLY - CEILING
MOUNTED
Identify5
(a) Final installation will be done after the leak test.
FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 3 OF 3)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1 April 29, 2013
23 of 29
BOEING SERVICE BULLETIN 777-35A0029
ALERTALERT

### Page 24 (OCR)

BOEING SERVICE BULLETIN 777-35A0029
ALERT  ALERT
OE
FWD
2156794
FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 1 OF 3)
Original Issue: June 06, 2012
Revision 1 April 29, 2013  Export Controlled ECCN: 9E991 - BOEING  PROPRIETARY - Copyright © Unpublished  777-35A0029
Work - See page 1 for details.  24 of 29

### Page 25 (OCR)

BOEING SERVICE BULLETIN 777-35A0029
ALERT  ALERT
2156827
FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 2 OF 3)
Original Issue: June 06, 2012
Revision 1 April 29, 2013  PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  777-35A0029
Work - See page 1 for details.  25 of 29

### Page 26

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 each airplane.
More DataQtyIdentificationNameTaskStep
Refer to 777 AMM
25-21-07as an ac-
cepted procedure.
--CEILING PANELSRemove / Keep1
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
257034-08A050215HOSE ASSYRemove2
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
257034-33N040215HOSE ASSYInstall (New)3
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
157034-09A050270HOSE ASSYRemove4
Refer to 777 AMM
35-00-00 as an ac-
cepted procedure.
157034-34N040270HOSE ASSYInstall (New)5
FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS
(SHEET 3 OF 3)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1 April 29, 2013
26 of 29
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### Page 27 (OCR)

BOEING SERVICE BULLETIN 777-35A0029
ALERT  ALERT
FWD
2156852
FIGURE 3: SUPERNUMERARY INTERIOR RESTORATION
(SHEET 1 OF 2)
Original Issue: June 06, 2012
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### Page 28

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 each airplane.
More DataQtyIdentificationNameTaskStep
Refer to 777 AMM
25-21-07as an ac-
cepted procedure.
--CEILING PANELSInstall (Kept)1
Refer to 777 AMM
35-23-15 as an ac-
cepted procedure.
4-STOWAGE BOX AS-
SEMBLY
Install (Kept)2
FIGURE 3: SUPERNUMERARY INTERIOR RESTORATION
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1 April 29, 2013
28 of 29
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### Page 29

1. Torque B-Nut to 190 + 2/- 9 inch-lbs. Refer to 777 AMM 35-00-00 as an accepted procedure.
2. Ensure a 0.002 inch minimum clearance between B-Nut and Stowage Box fitting. See the figure below.
APPENDIX A:  OXYGEN HOSE TO STOWAGE BOX INSTALLATION
(SHEET 1 OF 1)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: June 06, 2012
777-35A0029Revision 1 April 29, 2013
29 of 29
BOEING SERVICE BULLETIN 777-35A0029
ALERTALERT

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