# Boeing Alert Service Bulletin 737-35A1140: No revision named

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- Document: [Boeing Alert Service Bulletin 737-35A1140](https://openairdocs.org/service-documents/boeing/737-35a1140.md)
- Title as filed: U.S. DOT/FAA - SB-737-35A1140-00
- Pages: 30
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### Page 1

Commercial 
Airplanes
737
Service Bulletin
ALERT
Number: 737-35A1140
Original Issue: August 28, 2013
ATA System: 3511 3512
SUBJECT: OXYGEN - Flight Crew Oxygen System - Low Pressure Oxygen Flex 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 © 2013 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Unpublished Work.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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Table of Contents
Summary ...................................................... 5
1. PLANNING INFORMATION ........................................ 9
A. Effectivity ................................................ 9
1. Airplanes ............................................. 9
2. Spares Affected ........................................ 1 5
B. Concurrent Requirements ...................................... 1 5
C. Reason ................................................ 1 5
D. Description .............................................. 1 5
E. Compliance .............................................. 1 6
F. Approval ............................................... 1 6
G. Manpower .............................................. 1 6
H. Weight and Balance Changes .................................... 1 7
I. Electrical Load Data ......................................... 1 7
J. References .............................................. 1 7
1. Existing Data: ......................................... 1 7
2. Data Supplied with this Service Bulletin: ........................... 1 7
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 7
K. Publications Affected ........................................ 1 7
L. Interchangeability and Intermixability of Parts ........................... 1 8
M. Software Accomplishment Summary ................................ 1 8
2. MATERIAL INFORMATION ........................................ 1 9
A. Material - Price and Availability ................................... 1 9
B. Industry Support Information .................................... 1 9
C. Parts Necessary for Each Airplane ................................. 1 9
1. Kits/Parts ............................................ 1 9
2. Parts and Materials Supplied by the Operator ........................ 1 9
3. Parts Modified and Reidentified ................................ 2 0
4. Parts Removed and Not Replaced .............................. 2 0
D. Parts Necessary to Change Spares ................................. 2 0
E. Special Tooling - Price and Availability ............................... 2 0
F. Special Tooling Necessary to do this Service Bulletin ....................... 2 0
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 1
A. GENERAL INFORMATION ..................................... 2 1
B. WORK INSTRUCTIONS ....................................... 2 1
FIGURE 1: FLIGHT COMPARTMENT - CAPTAINS OXYGEN HOSE ASSEMBLY - REPLACEMENT . 23
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
.................................................. 2 5
FIGURE 3: FLIGHT COMPARTMENT - FIRST OBSERVERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
.................................................. 2 7
FIGURE 4: FLIGHT COMPARTMENT - SECOND OBSERVERS OXYGEN HOSE ASSEMBLY -
REPLACEMENT ........................................ 2 9
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Commercial 
Airplanes
737
Service Bulletin
ALERT
SummaryNumber: 737-35A1140Original Issue: August 28, 2013
ATA System: 3511 3512
SUBJECT: OXYGEN - Flight Crew Oxygen System - Low Pressure Oxygen Flex 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 flex hoses
that may be subjected to electrical current. If the changes in this service bulletin are not done, an electrical
grounding condition can result, causing the hose to melt or burn and release smoke and/or fire into the flight
compartment.
This service bulletin will replace low pressure oxygen flex hoses with non-conductive low pressure oxygen flex
hoses located in the flight compartment.
Boeing Service Related Problem (SRP) 737-SRP-35-0050 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 737 FTD 35-12001 is related to this service bulletin.
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 AffectedYesSpares Affected
Paragraph 1.E., Compliance and Paragraph
1.F., Approval
YesAD Related
Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change
Paragraph 1.I., Electrical Load DataNoElectrical Load Changed
Paragraph 1.K., Publications AffectedYesPublications Affected
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ReferenceAffectedPlanning Data
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/PartsNoKits/Parts Required
Paragraph 2.C.2., Parts and Materials Supplied
by the Operator
YesOperator Supplied Material
Paragraph 2.F., Special Tooling Necessary to
do this Service Bulletin
NoSpecial Tooling Required
ACTION
Remove applicable ceiling and sidewall lining panels in the flight compartment as needed to gain access to the
affected low pressure oxygen flex hoses and replace conductive hoses with new non-conductive hoses. Perform
leak detection procedure and functional test the oxygen system. Install removed ceiling and sidewall panels as
needed.
EFFECTIVITY
737-100/-200/-200C Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
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 not available for the configuration changes given in this service bulletin.
MANPOWER
Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION
Operator Supplied Parts/Materials.
Refer to Paragraph 2.C.2., for parts and materials supplied by the operator.
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### Page 7 (OCR)

BOEING SERVICE BULLETIN 737-35A1140
ALERT  ALERT
STA
254.12
00000000000000
0000000  STA
277
STA
259
REMOVE HOSE
INSTALL HOSE
REMOVE HOSE
REMOVE HOSE  INSTALL HOSE
INSTALL HOSE
REMOVE HOSE
INSTALL HOSE
TYPICAL
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Commercial 
Airplanes
737
Service Bulletin
ALERT
Number: 737-35A1140
Original Issue: August 28, 2013
ATA System: 3511 3512
SUBJECT: OXYGEN - Flight Crew Oxygen System - Low Pressure Oxygen Flex 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
This service bulletin is for the airplane(s) shown below.
Refer to Service Bulletin Index D6-19567 Part 3 for Airplane Variable Number, Line Number, and
Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP
All Airplanes with possible conductive oxygen flex hoses installed-1
Airplane Models:
737-100, 737-200, 737-200C
GroupVariable Number
1PA001 - PA022
1PA099
1PA231 - PA232
1PC001 - PC005
1PG001 - PG075
1PG199
1PG201 - PG230
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GroupVariable Number
1PG251 - PG255
1PG271 - PG279
1PG301 - PG314
1PG331 - PG332
1PG351 - PG356
1PG375
1PG401 - PG403
1PG431 - PG442
1PG471 - PG475
1PG501 - PG505
1PG571 - PG586
1PG621 - PG630
1PG651 - PG652
1PG701 - PG705
1PH001
1PH011 - PH013
1PH021 - PH024
1PH701 - PH715
1PH731 - PH732
1PH741 - PH743
1PJ001 - PJ009
1PJ031 - PJ032
1PJ071 - PJ072
1PJ101 - PJ119
1PJ201 - PJ219
1PK026 - PK029
1PK041 - PK053
1PK061 - PK070
1PK081 - PK082
1PK091 - PK099
1PK101 - PK103
1PK111 - PK120
1PK141 - PK146
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GroupVariable Number
1PK201 - PK204
1PK211 - PK223
1PK231 - PK241
1PK251 - PK258
1PK271 - PK274
1PK281 - PK289
1PK291
1PK301 - PK318
1PK341
1PK351 - PK361
1PK391
1PK431 - PK433
1PK451 - PK452
1PK461 - PK469
1PK495
1PK501 - PK504
1PK511 - PK515
1PK519
1PK521 - PK528
1PK541 - PK565
1PK581
1PK591 - PK599
1PK601 - PK617
1PK621 - PK637
1PK641 - PK642
1PK661 - PK666
1PK671 - PK681
1PK691 - PK697
1PK711 - PK716
1PK731 - PK765
1PK771 - PK779
1PK801 - PK804
1PK819 - PK827
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GroupVariable Number
1PK830
1PK861 - PK863
1PK871 - PK874
1PK881 - PK884
1PK901 - PK938
1PK971 - PK974
1PL001 - PL028
1PL061
1PL081
1PL101 - PL113
1PL151
1PL171 - PL172
1PL201 - PL203
1PL221
1PL401 - PL417
1PL421
1PL441
1PL451 - PL456
1PL471
1PL491
1PL501 - PL506
1PL551 - PL562
1PL581
1PL601 - PL603
1PL611
1PL621 - PL626
1PL631 - PL632
1PL711 - PL712
1PL716 - PL747
1PL756
1PL758
1PL761 - PL770
1PL781 - PL788
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GroupVariable Number
1PL793
1PL801 - PL803
1PM001 - PM006
1PM016 - PM017
1PM021 - PM023
1PM051 - PM066
1PM101 - PM119
1PM141 - PM142
1PM171
1PM181
1PM251 - PM255
1PM281 - PM283
1PN001 - PN002
1PN021 - PN043
1PN081 - PN086
1PN101 - PN117
1PN131 - PN163
1PN401 - PN420
1PN431 - PN433
1PN451 - PN456
1PN471 - PN474
1PN481
1PN491 - PN493
1PN501 - PN502
1PN511 - PN512
1PN521
1PX071
1PX701
1PY001 - PY008
1PY021 - PY022
1PY031
1PY036 - PY037
1PY046 - PY048
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GroupVariable Number
1PY051 - PY053
1PY056 - PY057
1PY101 - PY103
1PY111 - PY113
1PY131 - PY135
1PY141 - PY143
1PY151 - PY154
1PY156 - PY157
1PY161 - PY162
1PY166
1PY191
1PY201
1PY221 - PY222
1PY231
1PY241 - PY244
1PY270 - PY275
1PY281
1PY286
1PY301 - PY304
1PY321 - PY323
1PY341 - PY346
1PY361 - PY362
1PY381
1PY401
1PY409 - PY411
1PY421 - PY422
1PY441
1PY451
1PY461 - PY463
1PY591 - PY595
1PY611 - PY612
1PY621
1PY631
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GroupVariable Number
1PY651
1PY671 - PY672
1PY721
1PY741
2. Spares Affected
Examine your spares supply for the parts identified below. If any parts are found, refer to Paragraph
2.C.1., Kits/Parts for the recommended action.
Part Number
10-60174-35
B. Concurrent Requirements
None.
C. Reason
The changes provided in this service bulletin will help prevent damage to the low pressure oxygen flex
hoses that may be subjected to electrical current. If the changes in this service bulletin are not done,
an electrical grounding condition can result, causing the hose to melt or burn and release smoke and/or
fire into the flight compartment.
This service bulletin will replace low pressure oxygen flex hoses with non-conductive low pressure
oxygen hoses located in the flight compartment.
Boeing Service Related Problem (SRP) 737-SRP-35-0050 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 737 FTD 35-12001 is related to this service bulletin.
D. Description
Remove applicable ceiling and sidewall lining panels in the flight compartment as needed to gain access
to the affected low pressure oxygen flex hoses and replace conductive hoses with new non-conductive
hoses. Install removed ceiling and sidewall panels as needed and functional test the oxygen system.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones
ZoneModel
2-11, 2-12737-100, 737-200, 737-200C
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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.
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 find the tools.
Elapsed HoursTask HoursNumber of PersonsTask
1.252.502Open Access
1.001.001Figure 1
1.001.001Figure 2
1.001.001Figure 3
1.001.001Figure 4
0.550.551Test
1.152.302Close Access
6.959.35TOTAL FOR EACH AIRPLANE
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H. Weight and Balance Changes
None.
I. Electrical Load Data
Not applicable.
J. References
1. Existing Data:
a. Service Related Problem (SRP) 737-SRP-35-0050
b. Fleet Team Digest 737 FTD 35-12001
c. 737 Aircraft Maintenance Manual (AMM) 25-16-11, 35-00-00, 35-11-00
2. Data Supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
TitleDrawing Number
MISCELLANEOUS EQUIPMENT INSTALLATION65-53541
PROD. ILLUST. TUBING INSTL. SECTION 41 UPPER CONTROL
CAB. STA 178-277
65-48415 Sheets 1,
1A, 2, 3, 4, and 101.
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
35-10737 Illustrated Parts Catalog
25-21Component Maintenance Manual
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.
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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
The operator can supply the parts and materials shown in Paragraph 2.C., Parts Necessary for Each
Airplane. As an alternative, operators can purchase the parts from Boeing Spares. This service bulletin
does not show the Boeing price and supply data.
B. Industry Support Information
Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
C. Parts Necessary for Each Airplane
1. Kits/Parts
Inspect the airplane to determine the flight crew oxygen system configuration. Refer to the Table
in 2.C.2., and for each crew member location found determine if a new oxygen flex hose assembly
is required. The total number of hose assemblies 60B50059-615 required to change one airplane
is the sum of the individual locations with hose assemblies requiring replacement.
2. Parts and Materials Supplied by the Operator
The following parts or materials are necessary to do the change in this service bulletin. Parts and
materials in the manuals given in Paragraph 1.J., References, can also be necessary. Examine
operator part and material supply to make sure all necessary parts and materials are available.
NotesExisting Part NumberNameQTYPart Number /
Specification
Captain10-60174-35 (b), (c), (d)Hose Assembly (18 inch length)160B50059-615 (a),
(e)
1st Officer10-60174-35 (b), (c), (d)Hose Assembly (18 inch length)160B50059-615 (a),
(e)
1st Observer10-60174-35 (b), (c), (d)Hose Assembly (18 inch length)160B50059-615 (a),
(e)
2nd Observ-
er
10-60174-35 (b), (c), (d)Hose Assembly (18 inch length)160B50059-615 (a),
(e)
(a) Hydraflow, 1881 W. Malvern Ave., Fullerton, CA., 92833-2403 (USA) , Cage Code 24984, TEL: (714)
773-2600, FAX: (714) 773-6351, email: www.hydraflowusa.com.
(b) This part is not used in production.
(c) Discard the existing part.
(d) You can not use the existing part to replace the new or changed part.
(e) Supplier part number 38001- 615.
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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.
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: 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:
– 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. The instructions in Paragraph 3.B., Work Instructions and the figures can include
operation of tools or test equipment. Boeing Engineering Tool Drawings, the Illustrated
Tool and Equipment Manual, and the Special Tool and Ground Handling Drawing
Index contain data on versions of the tools or test equipment that you can use. It is
permitted to use replaced tools. It is not permitted to use superseded tools.
6. 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.
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.
8. Shaded areas in Figures are to separate the non-critical and non-authoritative
information from the critical and authoritative information.
B. WORK INSTRUCTIONS
CAUTION: OXYGEN SYSTEM COMPONENTS REQUIRE SPECIAL CARE AND HANDLING
PROCEDURES. REVIEW THE SAFETY AND MAINTENANCE PROCESSES SHOWN
IN 737 AMM 35-00-00.
1. Remove sidewall and ceiling panels as needed to gain access to the applicable oxygen flex hose.
Refer to 737 AMM 25-16-11 as an accepted procedure.
a. For the Captain and First Officer locations, refer to Figures 1 and 2.
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### Page 22

b. For the First and Second Observer locations, refer to Figures 3 and 4.
2. Turn off and depressurize the crew oxygen system, refer to 737-100/200 AMM 35-00-00, 35-11-00
as an accepted procedure.
3. Remove the existing conductive oxygen hose assemblies in accordance with Figures 1, 2, 3, and
4.
NOTE: Ensure the hose assembly elbows and unions do not move during hose removal.
Orientation of the elbows and unions are essential in maintaining proper clearances with
other structure.
4. Install the applicable new non-conductive oxygen hose assemblies in accordance with Figures 1,
2, 3, and 4.
NOTE: Ensure the hose assembly elbows and unions do not move during hose installation.
Orientation of the elbows and unions are essential in maintaining proper clearances with
other structure.
5. Turn on and pressurize the crew oxygen system, refer to 737-100/200 AMM 35-00-00, 35-11-00
as accepted procedures.
6. Do a leak detection procedure on the new non-conductive oxygen hose and functional test the
flight crew oxygen system, refer to 737-100/200 AMM 35-11-00 as accepted procedures.
7. Install removed sidewall and ceiling panels as applicable, refer to 737 AMM 25-16-11 as an
accepted procedure.
8. Put the airplane back to a serviceable condition.
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PROPRIETARY - Copyright © Unpublished
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### Page 23 (OCR)

BOEING SERVICE BULLETIN 737-35A1140
ALERT  ALERT
S-7L
STA
259
S-4L
S-7
TYPICAL
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.
FIGURE 1: FLIGHT COMPARTMENT - CAPTAINS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 1 OF 2)
Original Issue: August 28, 2013
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### Page 24

More DataQtyIdentificationNameTaskStep
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
110-60174-35HOSE ASSEMBLYRemove1
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
160B50059-615HOSE ASSEMBLYInstall (New)2
FIGURE 1: FLIGHT COMPARTMENT - CAPTAINS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 2 OF 2)
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BOEING SERVICE BULLETIN 737-35A1140
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### Page 25 (OCR)

BOEING SERVICE BULLETIN 737-35A1140
ALERT  ALERT
/S-7R
S-4R
STA  → S-5R
259
TYPICAL
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.
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 1 OF 2)
Original Issue: August 28, 2013
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Work - See page 1 for details.  25 of 30

### Page 26

More DataQtyIdentificationNameTaskStep
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
110-60174-35HOSE ASSEMBLYRemove1
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
160B50059-615HOSE ASSEMBLYInstall (New)2
FIGURE 2: FLIGHT COMPARTMENT - FIRST OFFICERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: August 28, 2013
737-35A1140
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BOEING SERVICE BULLETIN 737-35A1140
ALERTALERT

### Page 27 (OCR)

BOEING SERVICE BULLETIN 737-35A1140
ALERT  ALERT
12
TYPICAL  2221780
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.
FIGURE 3: FLIGHT COMPARTMENT - FIRST OBSERVERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 1 OF 2)
Original Issue: August 28, 2013
PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  737-35A1140
Work - See page 1 for details.  27 of 30

### Page 28

More DataQtyIdentificationNameTaskStep
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
110-60174-35HOSE ASSEMBLYRemove1
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
160B50059-615HOSE ASSEMBLYInstall (New)2
FIGURE 3: FLIGHT COMPARTMENT - FIRST OBSERVERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: August 28, 2013
737-35A1140
28 of 30
BOEING SERVICE BULLETIN 737-35A1140
ALERTALERT

### Page 29 (OCR)

BOEING SERVICE BULLETIN 737-35A1140
ALERT  ALERT
S-7L
STA
259
S-4L
STA
259
S-4L
TYPICAL
TYPICAL
2221759
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.
FIGURE 4: FLIGHT COMPARTMENT - SECOND OBSERVERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 1 OF 2)
Original Issue: August 28, 2013
PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  737-35A1140
Work - See page 1 for details.  29 of 30

### Page 30

More DataQtyIdentificationNameTaskStep
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
110-60174-35HOSE ASSEMBLYRemove1
Refer to 737-
100/200 AMM 35-
00-00 as an accept-
ed procedure.
160B50059-615HOSE ASSEMBLYInstall (New)2
FIGURE 4: FLIGHT COMPARTMENT - SECOND OBSERVERS OXYGEN HOSE ASSEMBLY - REPLACEMENT
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: August 28, 2013
737-35A1140
30 of 30
BOEING SERVICE BULLETIN 737-35A1140
ALERTALERT

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