### 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. 9E991 ECCN: 

## 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 Unpublished Work.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.

Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 1 of 29 3.0Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 2 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**

BLANK PAGE**Table of Contents** Revision Transmittal Sheet............................................ 5 Summary...................................................... 7 1. PLANNING INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 A. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 B. Concurrent Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 E. Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 H. Weight and Balance Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 I. Electrical Load Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2. Data Supplied with this Service Bulletin:. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3. Installation Drawings Used in the Preparation of this Service Bulletin:. . . . . . . . . . . 14 K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 L. Interchangeability and Intermixability of Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 M. Software Accomplishment Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2. MATERIAL INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 A. Material - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 C. Parts Necessary for Each Airplane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2. Parts and Materials Supplied by the Operator. . . . . . . . . . . . . . . . . . . . . . . . 16 3. Parts Modified and Reidentified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4. Parts Removed and Not Replaced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 D. Parts Necessary to Change Spares. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 E. Special Tooling - Price and Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 F. Special Tooling Necessary to do this Service Bulletin. . . . . . . . . . . . . . . . . . . . . . . 17 3. ACCOMPLISHMENT INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 B. WORK INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS . . . . . . . . . 21 FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS . . . . . . . . . . . . . . . . . . . 24 FIGURE 3: SUPERNUMERARY INTERIOR RESTORATION . . . . . . . . . . . . . . . . . . . . . . 27 APPENDIX A: OXYGEN HOSE TO STOWAGE BOX INSTALLATION . . . . . . . . . . . . . . . . . . . 29

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 3 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 4 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**

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### Commercial **Airplanes** 

# 777 Service Bulletin **ALERT Revision Transmittal Sheet**  **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 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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 5 of 29**REVISION HISTORY** June 06, 2012 Original Issue: April 29, 2013 Revision 1:

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 6 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**

### Commercial **Airplanes** 

# 777 Service Bulletin **ALERT Summary**  **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. **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.
**Reference Affected**  **Planning Data** Paragraph 1.A.2., Spares Affected No Spares Affected Paragraph 1.E., Compliance and Paragraph 1.F., Approval Yes AD Related Paragraph 1.H., Weight and Balance Changes No Weight and Balance Change

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 7 of 29**Reference Affected**  **Planning Data** Paragraph 1.I., Electrical Load Data No Electrical Load Changed Paragraph 1.K., Publications Affected Yes Publications Affected Paragraph 1.K., Publications Affected No Airplane Flight Operations Affected (Flight CrewOperations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/Parts Yes Kits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator No Operator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin No Special 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 Hours**  **Total Task Hours Airplanes**  6.60 6.60 TOTAL FOREACH AIRPLANE
**MATERIAL INFORMATION** Boeing Supplied Kits/Parts. Refer to Paragraph 2.A., Material - Price and Availability.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 8 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 9 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 10 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**

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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.
**DESCRIPTION CONFIGURATION**  **GROUP** 777F airplanes with pressurized supernumerary oxygen systems.

- 1 777F airplanes which have incorporated service bulletin 777-35-0025.

- 2

Airplane Models: 777F **Group Variable Number**  2 WF001 2 WF004 1 WF046 - WF059 1 WF075 1 WF121

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 11 of 292. 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 Zone**  **Model** 215, 216 777F **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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 12 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**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 Hours Task Hours**  **Number of Persons Task**  0.25 0.25 1 Open Access 2.75 2.75 1 FIGURE 1 1.25 1.25 1 FIGURE 2 0.35 0.35 1 Test 1.75 1.75 1 FIGURE 3 0.25 0.25 1 Close Access 6.60 6.60 TOTAL FOR EACH AIRPLANE **H. Weight and Balance Changes** None. **I. Electrical Load Data** Not changed.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 13 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT 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:
**Title Drawing Number**  Ceiling Installation - Section 41, Lowered Ceiling 413W1100 Stowage Installation - Ceiling Mounted 435W5101 Flex Hose Installation - Gaseous Oxygen, Supernumerary 474W2020 Oxygen Box Installation, Supernumerary 474W2630 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-Section**

**Publication** 35-23 777 Aircraft Maintenance Manual 11-32, 23-42, 25-28, 33-23, 35-23 777 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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 14 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT 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)**  **QTY Date**  **Name Kit Number** 

1450.00 139 12 7/10/2012 Top Kit 005W3542-1 **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 2**  **1 Top Kit**  1 1 005W3542-1

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 15 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT ALL** 
**KIT 005W3542-1**

**Notes Existing Part**  **Number Name**  **Figure**

**New Part Number 2**  **1 Qty**  (a) (b) 57034-08A050140 HOSE ASSY

. 4 57034-33N040140 (a) (b) 57034-08A050215 HOSE ASSY 2

. 57034-33N040215 (a) (b) 57034-09A050270 HOSE ASSY 1

. 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.
**Notes New Part Number**  **Name QTY**  **Existing Part Number**  (a) (b) (c)

- Stowage Assembly - Ceiling Mounted 1 435W5100-7B (a) (b) (d)

- Stowage Assembly - Ceiling Mounted 1 435W5100-8B (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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 16 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT 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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 17 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 18 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**

BLANK PAGE**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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1: April 29, 2013 19 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT 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 777-35A0029 Revision 1: April 29, 2013 20 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT FIGURE 1: STOWAGE BOX LOW PRESSURE OXYGEN HOSE REPLACEMENTS**  **(SHEET 1 OF 3)**
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1 April 29, 2013 21 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**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 Data Qty**  **Identification Name**  **Task Step**  Refer to 777 AMM35-23-15 as an accepted procedure. Oxygen masks donot need to be removed. 4

- STOWAGE BOX AS- SEMBLY Remove / Keep 1

Refer to 777 AMM35-00-00 as an accepted procedure. 4 57034-08A050140 HOSE ASSY Remove 2

**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 777-35A0029 Revision 1 April 29, 2013 22 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT More Data**  **Qty Identification**  **Name Task**  **Step** Refer to 777 AMM35-00-00 as an accepted procedure. Refer to APPENDIXA for more information. 4 57034-33N040140 HOSE ASSY Install (New) 3

Temporary install Stowage Box. (a) 4

- STOWAGE BOX AS- SEMBLY Install (Temporary) 4
Mark on a non-decorative surface that the service bulletinhas been done. Refer to SOPM 20-50- 10 Code M as an accepted procedure. - - STOWAGE ASSEM- BLY - CEILING MOUNTED Identify 5

(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 777-35A0029 Revision 1 April 29, 2013 23 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT FIGURE 2: LOW PRESSURE OXYGEN HOSE REPLACEMENTS**  **(SHEET 1 OF 3)**
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1 April 29, 2013 24 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT FIGURE 2: 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 777-35A0029 Revision 1 April 29, 2013 25 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**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 Data Qty**  **Identification Name**  **Task Step**  Refer to 777 AMM25-21-07as an accepted procedure. - - CEILING PANELS Remove / Keep 1

Refer to 777 AMM35-00-00 as an accepted procedure. 2 57034-08A050215 HOSE ASSY Remove 2

Refer to 777 AMM35-00-00 as an accepted procedure. 2 57034-33N040215 HOSE ASSY Install (New) 3

Refer to 777 AMM35-00-00 as an accepted procedure. 1 57034-09A050270 HOSE ASSY Remove 4

Refer to 777 AMM35-00-00 as an accepted procedure. 1 57034-34N040270 HOSE ASSY Install (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 777-35A0029 Revision 1 April 29, 2013 26 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT FIGURE 3: SUPERNUMERARY INTERIOR RESTORATION**  **(SHEET 1 OF 2)**
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: June 06, 2012 777-35A0029 Revision 1 April 29, 2013 27 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**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 Data Qty**  **Identification Name**  **Task Step**  Refer to 777 AMM25-21-07as an accepted procedure. - - CEILING PANELS Install (Kept) 1

Refer to 777 AMM35-23-15 as an accepted 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 777-35A0029 Revision 1 April 29, 2013 28 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**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 777-35A0029 Revision 1 April 29, 2013 29 of 29 **BOEING SERVICE BULLETIN 777-35A0029 ALERT**  **ALERT**