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Commercial Airplanes 747 Service Bulletin
SPECIAL ATTENTION Number: 747-35-2133 Original Issue: October 13, 2017 Revision 1: November 01, 2017 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask/Regulator and Stowage Box Change 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 © 2017 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Unpublished Work.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: October 13, 2017 747-35-2133Revision 1: November 01, 2017 1 of 25
2.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 2 of 25 BOEING SERVICE BULLETIN 747-35-2133
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Table of Contents
Revision Transmittal Sheet5
Summary7
1. PLANNING INFORMATION11
A. Effectivity11
1. Airplanes11
2. Spares Affected12
B. Concurrent Requirements12
C. Reason12
D. Description13
E. Compliance13
F. Approval13
G. Manpower13
H. Weight and Balance Changes14
I. Electrical Load Data14
J. References14
1. Existing Data:14
2. Data Supplied with this Service Bulletin:14
3. Installation Drawings Used in the Preparation of this Service Bulletin:15
K. Publications Affected15
L. Interchangeability and Intermixability of Parts15
M. Software Accomplishment Summary15
2. MATERIAL INFORMATION17
A. Material - Price and Availability17
B. Industry Support Information17
C. Parts Necessary for Each Airplane17
1. Kits/Parts17
2. Parts and Materials Supplied by the Operator17
3. Parts Modified and Reidentified17
4. Parts Removed and Not Replaced18
D. Parts Necessary to Change Spares18
E. Special Tooling - Price and Availability18
F. Special Tooling Necessary to do this Service Bulletin18
3. ACCOMPLISHMENT INSTRUCTIONS19
A. GENERAL INFORMATION19
B. WORK INSTRUCTIONS20
FIGURE 1: FLIGHT COMPARTMENT - CREW OXYGEN MASKS/REGULATORS AND STOWAGE BOXES
- REMOVAL22
FIGURE 2: FLIGHT COMPARTMENT - CREW OXYGEN MASKS/REGULATORS AND STOWAGE BOXES
- INSTALLATION24
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 3 of 25 BOEING SERVICE BULLETIN 747-35-2133
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 4 of 25 BOEING SERVICE BULLETIN 747-35-2133
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Commercial Airplanes 747 Service Bulletin
SPECIAL ATTENTION Revision Transmittal SheetNumber: 747-35-2133Original Issue: October 13, 2017 Revision 1: November 01, 2017 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask/Regulator and Stowage Box Change This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION Airplanes in the effectivity of this service bulletin must do 747-35-2133 R01. The Original Issue of this Service Bulletin was an administrative release and was not published on My Boeing Fleet (MBF).
REASON FOR REVISION SB 747-35-2133 Revision 1 is the initial publication of the Service Bulletin to the 747 Fleet. This revision constitutes a complete issue.
REVISION HISTORY October 13, 2017Original Issue:
November 01, 2017Revision 1:
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 5 of 25
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 6 of 25 BOEING SERVICE BULLETIN 747-35-2133
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Commercial Airplanes 747 Service Bulletin
SPECIAL ATTENTION SummaryNumber: 747-35-2133Original Issue: October 13, 2017 Revision 1: November 01, 2017 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask/Regulator and Stowage Box Change BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS DOCUMENT IMMEDIATELY.
CONCURRENT REQUIREMENTS None.
BACKGROUND Accomplishment of this service bulletin will let crew members remove crew oxygen masks/regulators from the stowage boxes without the occurrence of a harness caught in the face piece or goggles. If this service bulletin is not done, a harness could get caught in the face piece or goggles and increase the time to put on the crew oxygen masks/regulators, which may lead to hypoxia and the loss of useful consciousness, resulting in loss of control of the airplane.
During flight tests crew oxygen masks/regulators did not function as designed, as users could not put the crew oxygen masks/regulators on quickly. The crew oxygen mask/regulator took longer to put on because the harness tubing became caught in the face piece. This condition causes a delay for the flight crew to put on the mask(s), which may lead to hypoxia and the loss of useful consciousness, resulting in a loss of control of the airplane.
As a solution to this problem, the manufacturer has changed the design of the crew oxygen mask/regulator and the stowage box to prevent the occurrence of a harness that could get caught in the face piece or goggles before the crew oxygen mask/regulator is put on. The design change helps to make sure the crew oxygen mask/regulator can be reliably deployed in an emergency.
This service bulletin gives instructions to replace each crew oxygen mask/regulator and stowage box in the flight compartment to let the crew oxygen mask/regulator be put on immediately in an emergency.
Boeing Service Related Problem (SRP) 747-8-SRP-35-0057 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 747 FTD 35-14002 is related to this service bulletin.
Zodiac Aerospace SB MXP-MLD-747-35-01 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 7 of 25
ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedYesSpares Affected Paragraph 1.E., ComplianceYesAD Related Paragraph 1.H., Weight and Balance ChangesYesWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedYesPublications Affected Paragraph 1.K., Publications AffectedYesAirplane 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 Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 85901-144S) Remove the four crew oxygen masks/regulators and stowage boxes. Install four new or changed crew oxygen masks/regulators and stowage boxes.
EFFECTIVITY 747-8 and 747-8F Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
Refer to Paragraph 1.A.2., Spares Affected, for the list of affected components.
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 72 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.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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BOEING SERVICE BULLETIN 747-35-2133 Refer to Paragraph 2.A., Material - Price and Availability.
REMOVE THE FOUR CREW OXYGEN
MASKS/REGULATORS AND STOWAGE BOXES. INSTALL FOUR NEW OR CHANGED
CREW OXYGEN MASKS/REGULATORS AND STOWAGE BOXES.
FLIGHT COMPARTMENT 2477896 Original Issue: October 13, 2017 Revision 1: November 01, 2017 Export Controlled ECCN: 9E991 - BOEING 747-35-2133 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 9 of 25
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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Commercial Airplanes 747 Service Bulletin
SPECIAL ATTENTION Number: 747-35-2133 Original Issue: October 13, 2017 Revision 1: November 01, 2017 ATA System: 3511 SUBJECT: OXYGEN - Crew Oxygen System - Crew Oxygen Mask/Regulator and Stowage Box Change BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS DOCUMENT IMMEDIATELY.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes Refer to Service Bulletin Index D6-30300 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
This service bulletin is applicable to 747-8 and 747-8F Airplanes, line numbers 1420-1540, that have Avox crew oxygen masks/regulators, in 1 Group. The Variable Numbers and Group Information for the applicable airplanes is given below. An equivalent change is on subsequent production airplanes. Refer to PRR 85901-144S for data about this change.
DESCRIPTIONCONFIGURATIONGROUP 747-8 and 747-8F airplanes with Avox MLD20-626-1 crew oxygen masks/regulators and MXP806-1 stowage boxes installed.
-1 Airplane Models:
747-8, 747-8F GroupVariable Number 1RC001 - RC009 1RC021 - RC040 1RC051 - RC060 1RC066 - RC072 1RC076 - RC077 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 11 of 25
GroupVariable Number 1RC501 - RC514 1RC521 - RC528 1RC541 1RC546 - RC564 1RC566 1RC571 - RC573 1RC601 - RC606 1RC641 - RC644 1RC651 - RC652 1RC661 1RC671 - RC674
2. Spares Affected Examine your spares supply for the parts or components identified below. If any parts or components are found, refer to Paragraph 3.B., Work Instructions for the recommended action.
Part Number MLD20-626-1 MXP806-1 B. Concurrent Requirements None.
C. Reason Accomplishment of this service bulletin will let crew members remove crew oxygen masks/regulators from the stowage boxes without the occurrence of a harness caught in the face piece or goggles. If this service bulletin is not done, a harness could get caught in the face piece or goggles and increase the time to put on the crew oxygen masks/regulators, which may lead to hypoxia and the loss of useful consciousness, resulting in a loss of control of the airplane.
During flight tests crew oxygen masks/regulators did not function as designed, as users could not put the crew oxygen masks/regulators on quickly. The crew oxygen mask/regulator took longer to put on because the harness tubing became caught in the face piece. This condition causes a delay for the flight crew to put on the mask(s), which may lead to hypoxia and the loss of useful consciousness, resulting in a loss of control of the airplane. As a solution to this problem, the manufacturer has changed the design of the crew oxygen mask/regulator and the stowage box to prevent the occurrence of a harness that could get caught in the face piece or goggles before the crew oxygen mask/regulator is put on. The design change helps to make sure the crew oxygen mask/regulator can be reliably deployed in an emergency.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 13, 2017 747-35-2133Revision 1: November 01, 2017 12 of 25 BOEING SERVICE BULLETIN 747-35-2133