Commercial

Airplane

Group

767

Service Bulletin

Number: 767-35A0034 Revision Transmittal Sheet Date: September 2, 1999

Revision 1: June 22, 2000

ATA System: 3510

SUBJECT: OXYGEN - Crew Oxygen - Crew Oxygen System Low Pressure Flex Hose Replacement

This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION

No more work is necessary on airplanes changed as shown in the initial release of this service bulletin.

REASON FOR REVISION

This revision is sent to advise affected operators of the following:

The deletion of the NOTE from the Background and Reason sections.

The addition of an exception to the Effectivity section on the Summary page.

The removal of the 767-400 effectivity from the Effectivity section.

The removal of the reference to another service bulletin from the Reference section.

The addition of the vendor equivalent, oxygen hose, part numbers to the Parts Necessary For Each Airplane

section.

The addition of the sleeving and tape to the Operator Supplied Parts section.

The addition of instructions to remove and install the oxygen masks and demand regulators, as well as to

install sleeving and tape to the oxygen hoses, and added a NOTE for clarification if the hoses are already

installed without the sleeving or tape in the Accomplishment Instructions.

The data given in Information Notice 767-35A0034 IN 01 is included in this revision.

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

Original Release: September 2, 1999

Revision 1: June 22, 2000

767-35A0034

Revision Transmittal Page 1 of 1

Commercial

Airplane

Group

767

Service Bulletin

Number: 767-35A0034 Summary Date: September 2, 1999

Revision 1: June 22, 2000

ATA System: 3510

SUBJECT: OXYGEN - Crew Oxygen - Crew Oxygen System Low Pressure Flex Hose Replacement

CONCURRENT REQUIREMENTS

None

BACKGROUND

The changes provided in this service bulletin will

help prevent damage to the low pressure oxygen

flex hoses that may subjected to electrical current.

An electrical grounding condition can cause the

hose to melt or burn.

One operator has reported damaged oxygen supply

hoses on another Boeing model in August of 1997.

This damage has occurred due to a short circuit in

the 757 Audio Select Panel. It sent an electrical

current through the support structure to the flight

crew mask stowage box. This caused the spring

inside the low pressure oxygen hose to act as an

electrical conductor and heat up. This caused the

hose to burn through.

Also, a similar occurrence on a 737 was reported

due to improper maintenance.

This service bulletin will replace low pressure

oxygen hoses with non-conductive hoses located on

the flight deck. The replacement of the oxygen

hoses will help prevent electrical current from

passing through the supporting spring which can

cause the hose to melt or burn.

Boeing Service Related Problem (SRP)

767-SRP-35-0014 is related to this service bulletin.

ACTION (PRR B12900-183)

Remove the crew oxygen boxes. Replace the

existing low pressure hoses with the new

non-conductive hoses. Install the crew oxygen

boxes. Functional test the system.

EFFECTIVITY

All 767 airplanes, line numbers 1 through 763,

except line number 758, which was accomplished in

production.

COMPLIANCE

Boeing recommends compliance at the earliest

opportunity when manpower, material and facilities

are available.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are not available for the

configuration changes given in this service bulletin.

MANPOWER

Total Elapsed Time

Man-Hours (Hours)

3.5 3.5

MATERIAL INFORMATION

None

767-35A0034

Summary Page 1 of 2
BOEING SERVICE BULLETIN 767-35A0034

(TYPICAL)

APPLICABLE

BOX HOSES AS

REPLACE OXYGEN

FWD

S88678

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 Summary Page 2 of 2
Commercial

Airplane

Group

767

Service Bulletin

Number: 767-35A0034

Date: September 2, 1999

Revision 1: June 22, 2000

ATA System: 3510

SUBJECT: OXYGEN - Crew Oxygen - Crew Oxygen System Low Pressure Flex Hose Replacement

THIS SERVICE 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, Line

Number, and Serial Number data.

This service bulletin is for the airplanes shown below. An equivalent change is on subsequent

production airplanes. Refer to PRR B12900-183 for data about this change.

Airplane Models:

767-200 767-300 767-300F

IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER

ABX AIR (ABX)

VA803 VA807-VA809 VB101-VB112

AERO CONTINENTE (COH)

VE104

AEROFLOT (ARO)

VS321

AEROMEXICO (AMX)

VF091 VF093 VN556 VS211

AIR ALGERIE (ALG)

VK131-VK133

AIR ATLANTA ICELANDIC (AID)

VE041

AIR CANADA (ACN)

VA701-VA719 VB001-VB002 VB201-VB202 VN931-VN936

AIR CHINA (BEJ)

VE064-VE065 VE083-VE086 VK161-VK164

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 Page 1 of 26
BOEING SERVICE BULLETIN 767-35A0034

AIR DO (HIA)

VS176

AIR EUROPA (ARE)

VB323 VB328

AIR EUROPE ITALY (EIY)

VL931-VL932 VN682 VN811-VN812 VN972

AIR FRANCE (AFA)

VN631-VN635

AIR GABON (GBN)

VE021

AIR MADAGASCAR (MAD)

VE117 VS316

AIR MAURITIUS (MAU)

VF001-VF002

AIR NEW ZEALAND (ANZ)

VB324 VE101-VE103 VN651-VN658 VN813

AIR PACIFIC (APC)

VN676

AIR SEYCHELLES (ASY)

VF051 VL941

AIR ZIMBABWE (ZMB)

VF061-VF062

AIR 2000 (ATZ)

VN921-VN922 VS216

AIRTOURS INT'L AIRWAYS (GUE)

VN951-VN953

ALITALIA (ALI)

VL701-VL702 VN422-VN427 VS366-VS367 VS401

ALL NIPPON AIRWAYS (ANA)

VB113-VB125 VK081-VK113 VN191-VN198 VR401

AMERICAN AIRLINES (AAL)

VA501-VA530 VN001-VN041 VS196-VS203

ANSETT AUSTRALIA (ANS)

VB051-VB055 VB321-VB322 VE118 VL755

ANSETT WORLDWIDE AVIATION (AWW)

VN385 VN388

ASIANA AIRLINES (AAR)

VK141-VK148 VL703 VN753 VR426 VW851

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 2
BOEING SERVICE BULLETIN 767-35A0034

AVIANCA (AVI)

VE171-VE172 VF092 VF161 VN152

BOEING (TBC)

VA001 VY999

BRITANNIA AIRWAYS (BRI)

VB325-VB327 VB329-VB332 VL911-VL914 VN731 VS051-VS054

BRITISH AIRWAYS (BAB)

VN111-VN127 VN130-VN137 VS246-VS248

CANADIAN AIRLINES (CDI)

VN051-VN054 VN057-VN062 VN751-VN752

CHINA YUNNAN AIRLINES (YUN)

VL871-VL873

CITY BIRD (CBD)

VN436 VS177

CONDOR (CDF)

VN683-VN691

DELTA AIR LINES (DAL)

VA301-VA315 VK031-VK056 VL753 VN251-VN276 VN301-VN306 VR471-VR472

VS066-VS070 VS073-VS078 VS266-VS272

EGYPTAIR (EGP)

VN211

EL AL ISRAEL AIRLINES (ELA)

VB281-VB284 VF101-VF102

ETHIOPIAN AIRLINES (ETH)

VE001-VE002 VN371 VS306

EVA AIR (EVA)

VB441-VB444 VN471-VN472 VN791-VN792

FIRST SECURITY BANK OF UTAH (FSB)

VF072

GULF AIR (GUL)

VL003-VL006 VN307-VN310 VN313-VN314

H.M.S.F. AND AMEDEO CORP. (BWN)

VF180

IBERIA AIRLINES (IBE)

VN546-VN547

ITOCHU CORPORATION (CIT)

VF181-VF184

JAPAN AIRLINES (JAL)

VB371-VB373 VK001-VK016 VK021-VK022 VK181 VK186 VR461

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 3
BOEING SERVICE BULLETIN 767-35A0034

K.B.A. FOUNDATION (KBA)

VN312

KALAIR USA CORP (KLA)

VN311

KLM - ROYAL DUTCH AIRLINES (KLM)

VL891-VL900 VS136

LAM (LAM)

VF162

LANCHILE AIRLINES (LAN)

VN063-VN064 VN531 VN557 VN966-VN971 VR251 VS131-VS133

LAPA ARGENTINA (LAZ)

VS111

LAUDA AIR (LAL)

VS301-VS302

LAUDA AIR S.P.A. (LDI)

VL011 VN242-VN243 VN671

LOT POLISH AIRLINES (LOT)

VF041-VF042 VN291-VN293

LTU (LTU)

VN171-VN174 VN381 VS061

MALEV HUNGARIAN AIRLINES (HGA)

VF171-VF172

MARTINAIR HOLLAND (MTH)

VN221-VN225 VN672

MID EAST JET (SKL)

VF251

QANTAS (QAN)

VE061-VE063 VE066-VE069 VN081-VN099 VS186-VS187

ROYAL BRUNEI AIRLINES (RBA)

VN372 VN382-VN384 VN386-VN387 VN637-VN638

SAS (SAS)

VF071 VN151 VN153-VN158 VN163-VN168 VN536

SHANGHAI AIRLINES (SHA)

VK171 VR421

SKYMARK AIRLINES (SKM)

VS261-VS262

SOBELAIR (SBL)

VN421 VN636

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 4
BOEING SERVICE BULLETIN 767-35A0034

SOUTH AFRICAN AIRWAYS (SAA)

VE022-VE023

SPANAIR (SPP)

VN541-VN542

TACA INTERNATIONAL AIRLINES (TAC)

VE116 VN732

TRANSBRASIL (TBL)

VB251-VB253 VL001-VL002 VN532

TWA (TWA)

VA801-VA802 VA804-VA806 VA810 VB301-VB302 VN376 VN537

VN551 VN561-VN562 VN681 VS206-VS208

UNITED AIRLINES (UAL)

VA002-VA020 VN491-VN513 VS091-VS097

UPS (UPS)

VR201-VR208 VW701-VW721

US AIRWAYS (USA)

VE141-VE152

UZBEKISTAN AIRWAYS (UZB)

VL806-VL807

VARIG AIRLINES (VAR)

VE121-VE126 VN055-VN056 VN231-VN234

VIETNAM AIRLINES (VIE)

VL751-VL752 VL754

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 5
BOEING SERVICE BULLETIN 767-35A0034

IDENTIFICATION BY VARIABLE NUMBER

VA001-VA020 VA301-VA315 VA501-VA530 VA701-VA719 VA801-VA810 VB001-VB002

VB051-VB055 VB101-VB125 VB201-VB202 VB251-VB253 VB281-VB284 VB301-VB302

VB321-VB332 VB371-VB373 VB401 VB441-VB444 VE001-VE003 VE021-VE023

VE041-VE043 VE061-VE069 VE083-VE086 VE101-VE104 VE116-VE118 VE121-VE126

VE141-VE152 VE171-VE172 VF001-VF002 VF041-VF042 VF051 VF061-VF062

VF071-VF072 VF091-VF093 VF101-VF102 VF161-VF162 VF171-VF172 VF180-VF184

VF251 VK001-VK016 VK021-VK022 VK031-VK056 VK081-VK113 VK131-VK133

VK141-VK148 VK161-VK164 VK171 VK181 VK186 VL001-VL006

VL011 VL701-VL703 VL751-VL755 VL806-VL807 VL871-VL873 VL891-VL900

VL911-VL914 VL931-VL932 VL941 VN001-VN041 VN051-VN064 VN081-VN099

VN111-VN127 VN130-VN137 VN151-VN158 VN163-VN168 VN171-VN174 VN191-VN198

VN211-VN212 VN221-VN225 VN231-VN234 VN241-VN243 VN251-VN276 VN291-VN293

VN301-VN314 VN371-VN372 VN376 VN381-VN388 VN421-VN427 VN436

VN471-VN472 VN491-VN513 VN531-VN532 VN536-VN537 VN541-VN542 VN546-VN547

VN551 VN556-VN557 VN561-VN562 VN631-VN638 VN651-VN658 VN671-VN672

VN676 VN681-VN691 VN731-VN732 VN751-VN753 VN791-VN792 VN811-VN813

VN921-VN922 VN931-VN936 VN951-VN953 VN966-VN972 VR201-VR208 VR251

VR401 VR421 VR426 VR461 VR471-VR472 VS051-VS054

VS061 VS066-VS070 VS073-VS078 VS091-VS097 VS111 VS131-VS133

VS136 VS176-VS177 VS186-VS187 VS196-VS203 VS206-VS208 VS211

VS216 VS246-VS248 VS261-VS262 VS266-VS272 VS301-VS302 VS306

VS316 VS321 VS366-VS367 VS401 VW701-VW721 VW851

VY999

2. Spares Affected

None

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 6
BOEING SERVICE BULLETIN 767-35A0034

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 subjected to electrical current. An electrical grounding condition can cause the

hose to melt or burn.

One operator has reported damaged oxygen supply hoses on another Boeing model in August of

1997. This damage has occurred due to a short circuit in the 757 Audio Select Panel. It sent an

electrical current through the support structure to the flight crew mask stowage box. This caused the

spring inside the low pressure oxygen hose to act as an electrical conductor and heat up. This

caused the hose to burn through.

Also, a similar occurrence on a 737 was reported due to improper maintenance.

This service bulletin will replace low pressure oxygen hoses with non-conductive hoses located on

the flight deck. The replacement of the oxygen hoses will help prevent electrical current from passing

through the supporting spring which can cause the hose to melt or burn.

Revision 1 is sent to advise affected operators of the following:

The deletion of the NOTE from the Background and Reason sections.

The addition of an exception to the Effectivity section on the Summary page.

The removal of the 767-400 effectivity from the Effectivity section.

The removal of the reference to another service bulletin from the Reference section.

The addition of the vendor equivalent, oxygen hose, part numbers to the Parts Necessary For Each

Airplane section.

The addition of the sleeving and tape to the Operator Supplied Parts section.

The addition of instructions to remove and install the oxygen masks and demand regulators, as well

as to install sleeving and tape to the oxygen hoses, and added a NOTE for clarification if the hoses

are already installed without the sleeving or tape in the Accomplishment Instructions section.

Boeing Service Related Problem (SRP) 767-SRP-35-0014 is related to this service bulletin.

D. Description

Remove the crew oxygen boxes. Replace the existing low pressure hoses with the new

non-conductive hoses. Install the crew oxygen boxes. Functional test the system.

Revision 1 - No more work is necessary on airplanes changed as shown in the initial release of this

service bulletin.

An evaluation form is attached to this service bulletin. Please use this form to tell us what you think

of the quality of this service bulletin.

E. Compliance

Boeing recommends compliance at the earliest opportunity when manpower, material and facilities

are available.

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 7
BOEING SERVICE BULLETIN 767-35A0034

F. Approval

This service bulletin was examined by the Federal Aviation Administration (FAA). The changes

specified in this service bulletin comply with the applicable Federal Aviation Regulations (FAR) and

are FAA approved. This service bulletin and the FAA approval were based on the airplane in its

original Boeing delivery configuration or as modified by other FAA 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.

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 8
BOEING SERVICE BULLETIN 767-35A0034

G. Manpower

The table below shows an estimate of the man-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

man-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 examine the work

- Time to cure the materials

- Time to make the parts

- Time to find the tools.

Task Number of Persons Man-Hours Elapsed Time (Hours)

Access 1 1.0 1.0

Replace Hoses 1 1.5 1.5

Restore 1 1.0 1.0

TOTAL FOR EACH AIRPLANE 3.5 3.5

H. Weight and Balance Changes

None

I. Electrical Load Data

Not changed

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 9
BOEING SERVICE BULLETIN 767-35A0034

J. References

1. Existing Data:

a. Engineering Change Memo PRR B12900-183

b. Service Related Problem (SRP) 767-SRP-35-0014

c. 767 Maintenance Manual (AMM) Subject 12-15-08, 20-41-00, 35-00-00, 35-11-00, 35-11-51

2. Data supplied with this service bulletin:

None

3. Installation Drawings Used in the Preparation of This Service Bulletin:

Drawing Number Title

232T8002 EQUIPMENT INSTL - CREW OXYGEN

278T4100 TUBING INSTALLATION CONTROL

CAB SIDEWALL RH, STA 138 THRU

249

278T4101 TUBING INSTALLATION CONTROL

CAB SIDEWALL LH, STA 138 THRU

249

278T4104 TUBING INSTALLATION FLT INSTR

PNL AND CAP PTN, STA 197 THRU

247

278T4105 TUBING INSTALLATION CENTER

CONSOLE AREA P8, P9 AND P10

278T4122 TUBING INSTALLATION CROWN AFT

RH, STA 249 THRU 431

These drawings were used to prepare this service bulletin. These drawings are not necessary to

make the specified changes, and are not supplied with this service bulletin. These drawings may

not be applicable to all airplane configurations or operators.

K. Publications Changed

Publication Chapter-Section

767 Illustrated Parts Catalog 35-11

L. Interchangeability and Intermixability

Refer to Paragraph 2.E., Existing Parts Accountability, for interchangeability and intermixability

information.

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 10
BOEING SERVICE BULLETIN 767-35A0034

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:

None

2. Parts and Materials Supplied by the Operator:

QTY Boeing Part Number / Vendor Part Number Name

(a) 60B50059-606 / 38001-606 (b) Hose Assy

(a) 60B50059-607 / 38001-607 (b) Hose Assy

(a) 60B50059-608 / 38001-608 (b) Hose Assy

(a) 60B50059-610 / 38001-610 (b) Hose Assy

(a) 60B50059-613 / 38001-613 (b) Hose Assy

2 232T8002-100 (.750 DIA X 16 inches) (c) Sleeve (Black)

1 Roll 232T8002-26 (d) (e) Protective Tape

(a) For hose quantity requirements, see Illustrated Parts Catalog 35-11 for customer

specific configurations.

(b) HydraFlow (V24984)

13529 East 166th Street

Cerritos, CA 90701-2203 (USA)

(c) See the Qualified Products List at the end of the Boeing Material Specification

(BMS13-52, Type V) for supplier data.

(d) Permacel P29 protective tape is 3/4 inches wide X 36 yards long.

(e) Permacel Division, Johnson & Johnson (V99742)

U.S. Highway 101, P.O. Box 671

New Brunswick, NJ 08903 (USA)

D. Parts Necessary to Change Spares

None

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 11
BOEING SERVICE BULLETIN 767-35A0034

E. Existing Parts Accountability

Existing Part Number RUC Name QTY New Part Number PNC RC

60B50059-70 DIS Hose Assy (a) 60B50059-606 S A

60B50059-81 DIS Hose Assy (a) 60B50059-607 S A

60B50059-94 DIS Hose Assy (a) 60B50059-608 S A

60B50059-101 DIS Hose Assy (a) 60B50059-610 S A

60B50059-130 DIS Hose Assy (a) 60B50059-613 S A

(a) For hose quantity requirements, see Illustrated Parts Catalog 35-11 for customer specific

configurations.

The parts shown below are changed as shown in this service bulletin.

RUC Recommended Use Code

DIS - Discard the part.

PNC Part Number Code

S - To get a new part, use this part number in your order.

- This is the part number after the change given in this service bulletin.

- This part is used in production.

RC Replacement Code

A - Do not use the existing part to replace the new or changed part.

F. Special Tooling - Price and Availability

None

G. Special Tooling Necessary to do This 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.

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 12
BOEING SERVICE BULLETIN 767-35A0034

3. ACCOMPLISHMENT INSTRUCTIONS

GENERAL NOTES

1. The paragraphs identified with a letter give the general work instructions and the necessary tests.

The instructions identified with numbers on the figures give the recommended sequence of steps.

2. Obey all of the warnings and cautions given in the specified manual sections.

WORK INSTRUCTIONS

CAUTION: OXYGEN SYSTEM COMPONENTS REQUIRE SPECIAL CARE AND HANDLING

PROCEDURES. REVIEW THE SAFETY AND MAINTENANCE PROCESSES

SHOWN IN 767 AMM 35-00-00 PRIOR TO MAKING ANY CHANGES TO THE

OXYGEN SYSTEM.

A. Remove the oxygen masks, demand regulators, and the oxygen stowage boxes as shown in 767

AMM 35-11-51 or operator's equivalent procedure.

B. Remove the existing low pressure oxygen hoses as shown in Figures 1, 2, 3, 4, and 5.

NOTE: If the low pressure oxygen hoses have already been installed as shown in this service

bulletin, installation of the sleeving and the application of the tape is not required at this

time. However, it is recommended that at the next available opportunity, the sleeving be

installed and the protective tape applied to the low pressure oxygen hoses as applicable.

C. Install the sleeving on the captain and first officer's low pressure oxygen hoses as shown in Figure

6.

D. Apply protective tape to all other crew low pressure oxygen hoses as shown in Figure 7.

NOTE: Ensure that the hose assembly elbows and unions do not move during hose replacement.

Orientation of the elbows and unions are essential in maintaining proper clearances with

other structure.

E. Install the applicable new non-conductive oxygen hoses as shown in Figures 1, 2, 3, 4, and 5.

F. Install the oxygen stowage boxes, demand regulators, and oxygen masks as shown in 767 AMM

35-11-51 or operator's equivalent procedure.

G. Functional test the crew oxygen system as shown in 767 AMM 35-11-00, "Crew Oxygen High

Pressure Leakage Test," "Crew Oxygen Stowage Box Test (MIC)," "Crew Oxygen Mask/Regulator

Test," or operator's equivalent procedure.

H. Ensure the Crew Oxygen Cylinder Valve is open.

I. Put the airplane back to a serviceable condition.

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 13
BOEING SERVICE BULLETIN 767-35A0034

FIGURE TABLE OF CONTENTS

Title Page

FIGURE 1. OXYGEN BOX HOSE TYPICAL LOCATIONS. . . . . . . . . . . . . . . . . . . . . . . . 15

FIGURE 2. CAPTAIN AND FIRST OFFICER'S OXYGEN BOX HOSE

REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

FIGURE 3. RIGHT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT . . . . . 20

FIGURE 4. LEFT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT . . . . . . 22

FIGURE 5. SUPERNUMERARY SEAT'S OXYGEN BOX HOSE REPLACEMENT . . . . . 24

FIGURE 6. SLEEVE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

FIGURE 7. TAPE APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

September 2, 1999 767-35A0034

Revision 1: June 22, 2000 14
BOEING SERVICE BULLETIN 767-35A0034

FWD

FIGURE 5

SEE

FIGURE 3

SEE

FIGURE 4

SEE

FIGURE 2

SEE

FIGURE 2

SEE

S88575

FIGURE 1. OXYGEN BOX HOSE TYPICAL LOCATIONS

September 2, 1999 SHEET 1 OF 1 767-35A0034

Revision 1: June 22, 2000 15
BOEING SERVICE BULLETIN 767-35A0034

SEE A SEE B

S88622

FIGURE 2. CAPTAIN AND FIRST OFFICER'S OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 1 OF 4 767-35A0034

Revision 1: June 22, 2000 16
BOEING SERVICE BULLETIN 767-35A0034

4

2 3

A

CAPTAIN'S CONSOLE

1

INBD

UP

FWD

S88623

FIGURE 2. CAPTAIN AND FIRST OFFICER'S OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 2 OF 4 767-35A0034

Revision 1: June 22, 2000 17
BOEING SERVICE BULLETIN 767-35A0034

1

2 3

FIRST OFFICER'S CONSOLE

4

B

INBD

UP

FWD

S88624

FIGURE 2. CAPTAIN AND FIRST OFFICER'S OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 3 OF 4 767-35A0034

Revision 1: June 22, 2000 18
BOEING SERVICE BULLETIN 767-35A0034

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME REFERENCES QTY NOTES

1 Remove /

Keep

Oxygen Box 767 AMM 35-11-51 2 -

2 Remove /

Discard

Hose Assy 767 AMM 35-11-51 2 Discard the Hose Assy after

recording the part number.

3 Install Hose Assy 767 AMM 35-11-51 2 See Existing Parts

Accountability for applicable

new Hose Assy.

4 Install /

Kept

Oxygen Box 767 AMM 35-11-51 2 -

FIGURE 2. CAPTAIN AND FIRST OFFICER'S OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 4 OF 4 767-35A0034

Revision 1: June 22, 2000 19
BOEING SERVICE BULLETIN 767-35A0034

FWD

1 6

3 4

2 5

A

SEE A

FWD

S88630

FIGURE 3. RIGHT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 1 OF 2 767-35A0034

Revision 1: June 22, 2000 20
BOEING SERVICE BULLETIN 767-35A0034

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME REFERENCES QTY NOTES

1 Remove /

Keep

Blank Panel - 1 -

2 Remove /

Keep

Oxygen Box 767 AMM 35-11-51 1 -

3 Remove /

Discard

Hose Assy 767 AMM 35-11-51 1 Discard the Hose Assy after

recording the part number.

4 Install Hose Assy 767 AMM 35-11-51 1 See Existing Parts

Accountability for applicable

new Hose Assy.

5 Install /

Kept

Oxygen Box 767 AMM 35-11-51 1 -

6 Install /

Kept

Blank Panel - 1 -

FIGURE 3. RIGHT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 2 OF 2 767-35A0034

Revision 1: June 22, 2000 21
BOEING SERVICE BULLETIN 767-35A0034

FWD

3

2 5

4

1 6

SEE A

A

FWD

S88641

FIGURE 4. LEFT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 1 OF 2 767-35A0034

Revision 1: June 22, 2000 22
BOEING SERVICE BULLETIN 767-35A0034

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME REFERENCES QTY NOTES

1 Remove /

Keep

Panel - 1 -

2 Remove /

Keep

Oxygen Box 767 AMM 35-11-51 1 -

3 Remove /

Discard

Hose Assy 767 AMM 35-11-51 1 Discard the Hose Assy after

recording the part number.

4 Install Hose Assy 767 AMM 35-11-51 1 See Existing Parts

Accountability for the applicable

new Hose Assy.

5 Install /

Kept

Oxygen Box 767 AMM 35-11-51 1 -

6 Install /

Kept

Panel - 1 -

FIGURE 4. LEFT OBSERVER'S SEAT OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 2 OF 2 767-35A0034

Revision 1: June 22, 2000 23
BOEING SERVICE BULLETIN 767-35A0034

1 4

2 3

FWD

(3 LOCATIONS)

(3 LOCATIONS)

S88677

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME REFERENCES QTY NOTES

1 Remove /

Keep

Oxygen Box 767 AMM 35-11-51 3 -

2 Remove /

Discard

Hose Assy 767 AMM 35-11-51 4 Discard the Hose Assemblies

after recording the part

numbers.

3 Install Hose Assy 767 AMM 35-11-51 4 See Existing Parts

Accountability for the applicable

new Hose Assy.

4 Install /

Kept

Oxygen Box 767 AMM 35-11-51 3 -

FIGURE 5. SUPERNUMERARY SEAT'S OXYGEN BOX HOSE REPLACEMENT

September 2, 1999 SHEET 1 OF 1 767-35A0034

Revision 1: June 22, 2000 24
BOEING SERVICE BULLETIN 767-35A0034

2

1

TYPICAL FOR BOTH ENDS OF HOSE

CAPTAIN AND FIRST OFFICER

0.75

0.75

1.50

V27587

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME PART NUMBER QTY NOTES

1 Install Sleeve 232T8002-100 2 -

2 Apply Protectve Tape 232T8002-26 AR Permacel P29 on each end of

the sleeving to prevent slipping.

FIGURE 6. SLEEVE INSTALLATION

September 2, 1999 SHEET 1 OF 1 767-35A0034

Revision 1: June 22, 2000 25
BOEING SERVICE BULLETIN 767-35A0034

60 DEGREES

OXYGEN HOSE

0.0625

OVERLAP

1

V27590

The step numbers shown below agree with the numbers shown in the circle symbols in the figure.

STEP TASK NAME PART NUMBER QTY NOTES

1 Apply Protective Tape 232T8002-26 AR 2 layers of Permacel P29 along

the full length of the low

pressure oxygen hoses in all

locations except the captain and

first officer's position.

FIGURE 7. TAPE APPLICATION

September 2, 1999 SHEET 1 OF 1 767-35A0034

Revision 1: June 22, 2000 26
Commercial

Airplane

Group

767

Service Bulletin

Number: 767-35A0034 Evaluation Form Date: September 2, 1999

Revision 1: June 22, 2000

ATA System: 3510

Prepared By: Chris Starr

SUBJECT: OXYGEN - Crew Oxygen - Crew Oxygen System Low Pressure Flex Hose Replacement

Use this evaluation form to tell us what you think of the quality of this service bulletin. We will use the data

that you give us to improve the quality of our service bulletins.

NOTE: Please do not use this evaluation form to tell us to make changes to your manuals. To make these

changes, please use a Publication Change Request (PCR) form.

Please give us this data:

(If necessary, please use the other side. Thank you for the time you used to give us your comments.)

OPERATOR: TODAY'S DATE:

PREPARED BY: TITLE:

ORGANIZATION: TELEX CODE:

TELEPHONE NUMBER: BASE:

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Please rate the quality of the illustrations: (good) 4321 (poor)

Will you do the change given by this service bulletin? Yes No If not, please explain:

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Are the Planning Information, Material Information, and

Accomplishment Instructions accurate? Yes No If not, please explain:

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Give the completed evaluation form to your Boeing Field Service Representative or send the evaluation form

directly to this address:

Manager

Service Bulletin Engineering

Boeing Commercial Airplane Group

P.O. Box 3707, Mail Stop 2H-37

Seattle, WA 98124-2207