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Commercial Airplanes 727 Service Bulletin ALERT Number: 727-35A0031 Original Issue: July 18, 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Unpublished Work.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.

Original Issue: July 18, 2013 727-35A0031 1 of 30

4.0

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: July 18, 2013 727-35A0031 2 of 30 BOEING SERVICE BULLETIN 727-35A0031

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Table of Contents

Summary5

1. PLANNING INFORMATION9

A. Effectivity9

1. Airplanes9

2. Spares Affected ........................................ 1 3 B. Concurrent Requirements ...................................... 1 4 C. Reason ................................................ 1 4 D. Description .............................................. 1 4 E. Compliance .............................................. 1 4 F. Approval ............................................... 1 5 G. Manpower .............................................. 1 5 H. Weight and Balance Changes .................................... 1 5 I. Electrical Load Data ......................................... 1 5 J. References .............................................. 1 6

1. Existing Data: ......................................... 1 6

2. Data Supplied with this Service Bulletin: ........................... 1 6

3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 6 K. Publications Affected ........................................ 1 6 L. Interchangeability and Intermixability of Parts ........................... 1 6 M. Software Accomplishment Summary ................................ 1 7

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 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Commercial Airplanes 727 Service Bulletin ALERT SummaryNumber: 727-35A0031Original Issue: July 18, 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) 727-SRP-35-0050 is related to this service bulletin.

Boeing Fleet Team Digest (FTD) 727 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 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: July 18, 2013 727-35A0031 5 of 30

ReferenceAffectedPlanning Data Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane 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 (PRR 24855-RS) 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 727, 727-100, -100C, -200, -200F, 727C 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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Page 7OCROpen in PDF

BOEING SERVICE BULLETIN 727-35A0031

ALERT ALERT STA 259

REMOVE HOSE

INSTALL HOSE

REMOVE HOSE

INSTALL HOSE

REMOVE HOSE

INSTALL HOSE

REMOVE HOSE

INSTALL HOSE

TYPICAL Original Issue: July 18, 2013 Export Controlled ECCN: 9E991 - BOEING 727-35A0031 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 30

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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Commercial Airplanes 727 Service Bulletin ALERT Number: 727-35A0031 Original Issue: July 18, 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. An equivalent change is on subsequent production airplanes. Refer to PRR 24855-RS for data about this change.

This service bulletin is for the airplane(s) shown below.

Refer to Service Bulletin Index D6-9825 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:

727, 727-100, 727-100C, 727-200, 727-200F, 727C GroupVariable Number 1E0001 - E0042 1E0101 - E0140 1E0201 - E0216 1E0301 - E0351 1E0401 - E0423 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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GroupVariable Number 1E3001 - E3006 1E3011 - E3014 1E3021 - E3040 1E3059 1E3061 - E3077 1E3101 - E3103 1E3111 - E3118 1E3141 - E3152 1E3171 - E3177 1E3201 - E3206 1E3221 - E3224 1E3241 - E3290 1E3341 - E3350 1E3401 - E3421 1E3451 - E3452 1E3471 - E3474 1E3501 - E3513 1E3516 - E3523 1E3551 - E3553 1E3571 - E3578 1E3601 - E3604 1E3621 - E3622 1E3651 - E3655 1E3677 1E3681 - E3684 1E3701 - E3704 1E3751 - E3755 1E3781 - E3784 1E5001 - E5011 1E5031 - E5068 1E5101 - E5116 1E5141 - E5143 1E5161 - E5164 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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GroupVariable Number 1E5201 - E5203 1E5221 - E5245 1E5251 - E5252 1E5271 - E5281 1E5301 - E5306 1E5351 - E5353 1E5381 - E5382 1E5401 - E5424 1E5426 - E5429 1E5433 1E5435 1E5451 - E5455 1E5481 - E5483 1E5501 - E5502 1QA001 - QA046 1QA051 - QA099 1QA101 - QA199 1QA201 - QA225 1QA301 - QA349 1QA351 - QA376 1QA378 1QA401 - QA499 1QA501 - QA537 1QA551 - QA579 1QA581 - QA585 1QA601 - QA688 1QA701 - QA753 1QA801 - QA805 1QA851 - QA899 1QA901 - QA946 1QA949 1QB001 - QB002 1QB031 - QB049 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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GroupVariable Number 1QB051 - QB068 1QB101 - QB110 1QB114 - QB119 1QB121 - QB149 1QB151 - QB158 1QB201 - QB220 1QB301 - QB316 1QB351 - QB352 1QB401 - QB407 1QB451 - QB458 1QB501 - QB575 1QB601 - QB629 1QB651 1QB701 - QB705 1QB801 - QB810 1QB901 - QB904 1QD001 - QD012 1QD031 - QD046 1QD085 - QD088 1QD101 - QD105 1QD121 - QD127 1QD141 - QD149 1QD161 - QD164 1QD191 - QD192 1QD201 - QD239 1QD281 - QD284 1QD301 - QD305 1QD321 - QD330 1QD351 1QD401 - QD403 1QD407 1QD410 1QD421 - QD427 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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