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Commercial Airplanes 767 Service Bulletin ALERT Number: 767-35A0057 Original Issue: October 08, 2009 Revision 1: November 17, 2011 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask Stowage Box Unit - Inspect/Replace Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 730-774). 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BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2009 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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, 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, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the Boeing livery 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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Original Issue: October 08, 2009 767-35A0057Revision 1: November 17, 2011 1 of 23

6.0

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Original Issue: October 08, 2009 767-35A0057Revision 1: November 17, 2011 2 of 23 BOEING SERVICE BULLETIN 767-35A0057

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Table of Contents

Revision Transmittal Sheet5

Summary7

1. PLANNING INFORMATION ........................................ 1 1 A. Effectivity ............................................... 1 1

1. Airplanes ............................................ 1 1

2. Spares Affected ........................................ 1 1 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 4 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

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 5

3. Parts Modified and Reidentified ................................ 1 5

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 6

3. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 7 A. GENERAL INFORMATION ..................................... 1 7 B. WORK INSTRUCTIONS ....................................... 1 8 FIGURE 1: FLIGHT COMPARTMENT - CREW OXYGEN MASK STOWAGE BOX UNIT - INSPECTION .................................................. 2 0 FIGURE 2: FLIGHT COMPARTMENT - CREW OXYGEN MASK STOWAGE BOX UNIT - REPLACEMENT .................................................. 2 2

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Commercial Airplanes 767 Service Bulletin ALERT Revision Transmittal SheetNumber: 767-35A0057Original Issue: October 08, 2009 Revision 1: November 17, 2011 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask Stowage Box Unit - Inspect/Replace This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION More work is necessary on airplanes inspected in accordance with the original issue of this service bulletin that did not have affected serial numbers. Verify maintenance inspection records or re-inspect the crew oxygen mask stowage box units in accordance with Zodiac Services (Intertechnique) Service Bulletin MXP1/4-35-175 R02.

More work is necessary on the airplanes inspected in accordance with the original issue of this service bulletin that have changed crew oxygen mask stowage box units. Re-inspect in accordance with Zodiac Services(Intertechnique) Service Bulletin MXP1/4-35-175 R02.

REASON FOR REVISION Revision 1 is sent to perform a General Visual Inspection for affected serial numbers in accordance with revision 02 of Zodiac Services (Intertechnique) Service Bulletin MXP1/4-35-175 and change the serial number of inspected crew oxygen mask stowage box units.

This revision is set to make the changes below:

1. Replaced references to Intertechnique (Avox-Eros Services, INC), Service Bulletin MXP1/4-35-175, Rev 0 with references to Zodiac Services (Intertechnique) Service Bulletin MXP1/4-35-175, Rev 02.

2. Summary:

– Compliance: Added FAA Notice of Proposed Rule Making 2010-NM-094-AD.

– Industry Support Information: Included reference to Zodiac Services (Intertechnique) Service BulletinMXP1/4-35-175, Rev 02.

3. Part 1. B., Concurrent Requirements: Updated to show current supplier service bulletin, MXP1/4-35-175 as Revision 02.

4. Part 1. C., Reason: Added identification of the reason for revision 1.

5. Part 1. D., Description: Added information that additional work is needed for airplanes that have accomplished the original issue of this service bulletin.

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Original Issue: October 08, 2009 767-35A0057Revision 1: November 17, 2011 5 of 23

6. Part 1. E., Compliance: Added FAA Notice of Proposed Rule Making 2010-NM-094-AD.

7. Part 1. J., References: Updated the revision level of the supplier service bulletin and added FAA Notice of Proposed Rule Making 2010-NM-094-AD.

8. Part 3. Accomplishment Instructions, B., Work Instructions:

– Step 2, Part (a.), changed "Go to step 7" to "Go to step 11" and added steps.

– Added Step 3, Close the valve on the crew oxygen cylinder.

– Step 10, Added " If not previously accomplished".

9. Figure 1, changed footnotes (b) and (c).

10. Figure 2, added footnote (c).

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.

REVISION HISTORY October 08, 2009Original Issue:

November 17, 2011Revision 1:

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Commercial Airplanes 767 Service Bulletin ALERT SummaryNumber: 767-35A0057Original Issue: October 08, 2009 Revision 1: November 17, 2011 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask Stowage Box Unit - Inspect/Replace

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 Refer to Paragraph 1.B., Concurrent Requirements.

BACKGROUND Boeing has been notified by the supplier that a limited quantity of crew oxygen mask stowage box units, part number MXP147, manufactured between 12 July 2007 and 20 November 2007, were possibly delivered with a burr in the inlet fitting. This burr may break loose during test or operation and may pose an ignition source or cause an inlet valve to jam restricting the flow of oxygen. If this service bulletin is not accomplished, a burr may break loose during test or operation and pose an ignition source or cause an inlet valve to jam, restricting the flow of oxygen.

Boeing Service Related Problem (SRP) 767-SRP-35-0044 is related to this service bulletin.

ACTION Perform a General Visual Inspection of the crew oxygen mask stowage box units. The crew oxygen mask stowage box units do not need to be fully removed to do the inspection. Loosen the four quarter turn fasteners and lift the crew oxygen mask stowage box unit enough to read the serial number. Perform a General Visual Inspection for affected serial numbers identified in the Zodiac Services (Intertechnique) service bulletin, MXP1/4-35-175 Rev 02.

Crew oxygen mask stowage box units that do not have affected serial numbers require no further action. Stow the crew oxygen mask stowage box unit. Tighten the four quarter turn fasteners.

Crew oxygen mask stowage box units that have affected serial numbers are to be replaced. Perform functional testing on all replaced crew oxygen mask stowage box units.

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Original Issue: October 08, 2009 767-35A0057Revision 1: November 17, 2011 7 of 23

Crew oxygen mask stowage box units that have been inspected in accordance with the original issue of this service bulletin that did not have affected serial numbers require verification of maintenance records inspection or re-inspection of the crew oxygen mask stowage box unit in accordance with Zodiac Services (Intertechnique)service bulletin MXP1/4-35-175 R02.

EFFECTIVITY 767-200, -300 Airplanes. Refer to Paragraph 1.A.1., Airplanes for the list of affected airplanes.

COMPLIANCE Federal Aviation Administration (FAA) Notice of Proposed Rule Making 2010-NM-094-AD, is related to this service bulletin.

Boeing recommends that the inspection and any applicable replacement given in this service bulletin be done within 24 months after the original issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the operator action(s) given in this service bulletin. Please refer to Zodiac Services (Intertechnique), Service Bulletin MXP1/4-35-175, Rev 02 for more information.

MANPOWER Refer to Paragraph 1.G., Manpower.

MATERIAL INFORMATION Operator Supplied Parts/Materials.

Refer to Paragraph 2.A., Material - Price and Availability

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Commercial Airplanes 767 Service Bulletin ALERT Number: 767-35A0057 Original Issue: October 08, 2009 Revision 1: November 17, 2011 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask Stowage Box Unit - Inspect/Replace

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 airplanes shown below.

Refer to Service Bulletin Index Document D624T001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.

DESCRIPTIONCONFIGURATIONGROUP 767-200/-300 Airplanes-1 Airplane Models:

767-200, 767-300 GroupVariable Number 1VR108 1VS907

2. Spares Affected Examine your spares supply for the parts or components identified in Paragraph 2.C., Parts Necessary for Each Airplane. If any parts or components are found, refer to Paragraph 2.C. for the recommended use.

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B. Concurrent Requirements The service bulletin listed below must be done before or at the same time as this service bulletin:

DescriptionService BulletinCompany Provides inspection information and list of affected serial numbers.

MXP1/4-35-175, Rev. 02Zodiac Services (Intertechnique) C. Reason Boeing has been notified by the supplier that a limited quantity of crew oxygen mask stowage box units, part number MXP147, manufactured between 12 July 2007 and 20 November 2007, were possibly delivered with a burr in the inlet fitting. This burr may break loose during test or operation and may pose an ignition source or cause an inlet valve to jam restricting the flow of oxygen. If this service bulletin is not accomplished, a burr may break loose during test or operation and pose an ignition source or cause an inlet valve to jam, restricting the flow of oxygen.

Boeing Service Related Problem (SRP) 767-SRP-35-0044 is related to this service bulletin.

Revision 1 is sent to add a crew oxygen mask stowage box unit inspection in accordance with revision 02 of Zodiac Services (Intertechnique) Service Bulletin MXP1/4-35-175.

D. Description Perform a General Visual Inspection of the crew oxygen mask stowage box units. The crew oxygen mask stowage box units do not need to be fully removed to do the inspection. Loosen the four quarter turn fasteners and lift the crew oxygen mask stowage box unit enough to read the serial number.

Perform a General Visual Inspection for affected serial numbers identified in the Zodiac Services (Intertechnique) service bulletin, MXP1/4-35-175 Rev 02.

Crew oxygen mask stowage box units that do not have affected serial numbers require no further action. Stow the crew oxygen mask stowage box unit. Tighten the four quarter turn fasteners.

Crew oxygen mask stowage box units that have affected serial numbers are to be replaced. Perform functional testing on all replaced crew oxygen mask stowage box units.

More work is necessary on airplanes changed in accordance with the original issue of this service bulletin to inspect the crew oxygen mask stowage box unit in accordance with revision 02 of Zodiac Services (Intertechnique) Service Bulletin MXP1/4-35-175.

The work in this service bulletin is done in the maintenance zone(s) given below.

Affected Maintenance Zones ZoneModel 211, 212767-200, 767-300 E. Compliance Federal Aviation Administration (FAA) Notice of Proposed Rule Making 2010-NM-094-AD, is related to this service bulletin.

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