# Intertechnique Service Bulletin MXP1/4-35-175: Revision 2

- Rights: © Intertechnique. Filed by the FAA in regulations.gov docket FAA-2010-1042; AD 2013-07-09 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Intertechnique Service Bulletin MXP1/4-35-175](https://openairdocs.org/service-documents/intertechnique/mxp1-4-35-175.md)
- Title as filed: Intertechnique SB MXP 1-4-35-175 R02
- Pages: 9
- PDF: https://openairdocs.org/files/sha256/d4/ed/d4ed7535e3c1c693e547099cb525d75976876e05e022432a87635cacb2094d4e
- Page: https://openairdocs.org/service-documents/intertechnique/mxp1-4-35-175/file/d4ed7535e3c1

## Text

This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1 (OCR)

ZODIAC
ZODIAC SERVICES  AEROSPACE
ZODIAC SERVICES
Technical Publication Department
7, avenue du Parana
BP 303
91958 COURTABOEUF CEDEX - FRANCE
Phone international: + 33 1 64 86 69 59
Fax international: + 33 1 64 86 69 84
TPI Web site: http://tpi.services.zodiacaerospace.com/technical/tpi
TRANSMITTAL SHEET
This Revision applies to the Revision 02, dated 20110510, of Service Bulletin MXP1/4-35-175.
REASON FOR REVISION
Update of § 3 A,
Figure 1 Updated,
Figure 2 added,
Table 2 added.
REVISION SEQUENCE
Initial Issue  : 20090911
Rev01 .  20101115
Rev02  20110510
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
PAGE: 1/2

### Page 2 (OCR)

..."  ....
SERVICE BULLETIN
THIS PAGE INTENTIONALLY LEFT BLANK
DATE: 20110510  SERVICE BULLETIN: MXP1/4-35-175
PAGE: 2/2

### Page 3 (OCR)

ZODIAC
INTERTECHNIQUE  AEROSPACE
AIRCRAFT SYSTEMS
(OXYGEN AND LIFE SUPPORT DEPARTMENT)  SERVICE BULLETIN
61, RUE PIERRE CURIE - BOITE POSTALE N° 1
78373 PLAISIR CEDEX - FRANCE
Phone : (33) 1 61 34 23 23 - Fax : (33) 1 30 55 71 61
TITLE:  OXYGEN - FLIGHT CREW MASK STOWAGE PNR MXP147 Series, MXP402
Series, MXP410 Series - INSPECTION FOR POTENTIAL DEFECTIVE
COMPONENT
1.  PLANNING INFORMATION
A. Effectivity
(1) Aircraft application
Boeing aircraft: B737, B747, B767
See Boeing Service Bulletins 737-35A1121, 747-35A2126, and 767-35A0057 for specific
affected airplane effectivities.
(2) Concerned equipment
This Service Bulletin applies to Flight Crew Mask Stowage PNR MXP147, MXP147-2,
MXP147-3, MXP147-5, MXP402, MXP402-2, and MXP410-1 with serial numbers listed in
Table 1 in appendix.
(3)  Affected sub-assemblies
Not applicable
(4) Production
Not applicable
(5)  In Service
Refer to the Table 1 in appendix for the list of serial numbers of concerned equipments.
(6)  Spares parts
Check Spares inventory for any affected serial number (Refer to the Table 1 in appendix for
the list of serial numbers of concerned equipments).
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 1/7

### Page 4 (OCR)

SERVICE BULLETIN
B. Concurrent Requirements
(1)  Effected airlines should notify Zodiac Services Europe (contact Nadia Fajri - phone: 33 1 64
86 53 53 - e-mail: Nadia.Fajri@zodiacaerospace.com) of the part number and quantity of
boxes needed, a minimum of 30 days (Q ≤ 20 units) or 60 days (Q > 20 units) prior to
scheduled maintenance for replacement of the boxes.
Effected airlines need to comply with Boeing SB 737-35A1121, 747-35A2126 or
767-35A0057 as applicable.
C. Reason
(1)  To inform the operators that several case of escapement were observed recently on the inlet
fitting PNR 414490 (not procurable part), which is assembled on the supply hose assembly of
the above equipments.
(2)  To provide instructions for inspection of potentially defective equipment.
D. Description
The cause of this escapement is an incorrect deburring on a batch of primary parts. Unfortunately,
several units of Flight Crew Mask Stowage Boxes were manufactured between July 12, 2007 and
November 20, 2007 with parts from this batch, and delivered before the defect was detected. The
list of units delivered with a risk of non conformance is detailed in Table 1 of the appendix.
In case a burr becomes detached from the inlet fitting it can travel in the oxygen supply tube down
to the non return valve and filter assembled in the circuit:
- For MXP147 Series, the non return valve and the filter are integrated in the supply hose
assembly.
For MXP402 Series and MXP410 Series, the non return valve and filter are installed at the
inlet of the equipped body of the pneumatic assembly.
E. Compliance
Incorporation of this Service Bulletin is required by Intertechnique within 24 months of Service
Bulletin availability.
F. Approval
The technical content of this Service Bulletin has been reviewed and acknowledged by the aircraft
manufacturer.
G. Manpower
(1) 1 technician
(2)  Tasks: Inspect Serial Number - Remove and replace if serial number inspected is found in
Table 1 of appendix.
H. Weight and Balance
None
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 2/7

### Page 5 (OCR)

SERVICE BULLETIN
Electrical Load Data
Not Changed
J. Software Accomplishment Summary
Not applicable
K. References
(1) Component Maintenance Manuals
35-11-79: Flight Crew Mask Stowage MXP100 Series
35-13-42: Flight Crew Mask Stowage MXP400 Series
Boeing SB 737-35A1121, 747-35A2126 or 767-35A0057
L. Publications Affected
Not affected
M. Interchangeability
Not affected
2.  MATERIAL INFORMATION
A. Material - Price and Availability
(1)  Material
PNR  QTY
MXP147  14
MXP147-2  33
MXP 147-3  4
MXP 147-5  61
MXP402  9
MXP402-2
MXP410-1  41
(2)  Price
Not Applicable.
(3)  Availability
Not Applicable.
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 3/7

### Page 6 (OCR)

SERVICE BULLETIN
B. Industry Support Information
Not applicable
C. Material Necessary for Each Component (Unit)
Not applicable
D. Material necessary for each spare
Not applicable
E. Re-identified Parts
Not applicable
F. Tooling - Price and Availability
Not applicable
3.  ACCOMPLISHMENT INSTRUCTIONS
A. Inspection procedure
NOTE: SB accomplishment is identified by modification of Serial Number "SER" (adding on the
indentification plate of letter "I at the end of the SER).
(1) Visual inspection
(a)  Prepare aircraft for Flight Crew Mask Stowage inspection per Boeing SB 737-35A1121,
747-35A2126 or 767-35A0057 as applicable.
(b)  Detach the Flight Crew Mask Stowage from the aircraft by un-securing the 4 quarter
turn Dzus fasteners.
(c)  Extract the Flight Crew Mask Stowage far enough to see the identification label:
1  Inspect the S/N listed on the identification label shown in Figure 1.
Compare the S/N to the list found in Table 1 of the appendix and:
a If the S/N is found in the Table 1, it should be removed and replaced per the
Boeing SB 737-35A1121, 747-35A2126 or 767-35A0057 as applicable.
Removed Flight Crew Mask Storage should be returned to Zodiac Sevices at
the address in paragraph B.
If the S/N is not found in table 1, then compare the S/N to the list found in
table 2 of the appendix:
If the S/N is found in table 2, then a letter "I" should be added to the end of
the serial number (SER) on the identification label as shown in Figure 2 with
indelible ink or an electric pen.
Then reinstall the Flight Crew Mask Stowage and secure the 4 quarter turn
Dzus fasteners.
If the S/N is not found in the Table 1 or Table 2, then reinstall the Flight Crew
Mask Stowage and secure the 4 quarter turn Dzus fasteners.
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 4/7

### Page 7 (OCR)

SERVICE BULLETIN
* INTERTECHNQUE F5341
UGHT CREW MASK STOWAGE  Serial Number Location
AP 00000000OE
FOR OXYGEN
USE ONLY
MXP 1/4-35-175
INSPECTED
MXP 1/4-35-175
INSPECTED
) INTERTECHNIQUE F534
PN GHT FEW MASK STOWAGE
MXP147 Series  MFR
Label
(see Nota)
FOR OXYGEN
USE ONLY
Nota: Label may be add to boxes
inspected by Zodiac Services
MXP400 Series
FIGURE 1 - IDENTIFICATION OF SERIAL NUMBER DURING INSPECTION
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 5/7

### Page 8 (OCR)

SERVICE BULLETIN
ERO  INTERTECHNIQUE F5341
FLIGHT CREW MASK STOWAGE
PNR  MXP410-1
MER  F5341  SER  SE25064I  Eg : SER SE26064 becomes SE26064I
OMF  INSP
AMD
FOR OXYGEN
USE ONLY
FIGURE 2 - ADDITION OF "I" TO SERIAL NUMBER
B. Remittance of box(es) to Intertechnique
(1) Send removed Flight Crew Mask Stowage boxes to one of the following addresses:
INTERTECHNIQUE - D4  ZODIAC SERVICES AMERICAS
61, Rue Pierre Curie  6734, Valjean Avenue
BP 1  VAN NUYS, CA 91406
78734 PLAISIR CEDEX  USA
FRANCE  Phone: 1 818 435 0900
Phone: 33 1 30 54 82 00  Fax:  1 818 435 0960
Fax:  33 1 30 55 71 61
ZODIAC SERVICES ASIA  IN-SERVICES MIDDLE EAST
36, Loyang Drive  Abu Dhabi International Airport
SINGAPORE 508949  Cargo Village Area - PO Box 106675
Phone: 65 6579 2230  ABI DHABI
Fax:  65 6579 2231  UNITED ARAB EMIRATES
Phone: 971 2575 7088
Fax:  971 2575 8482
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 6/7

### Page 9 (OCR)

SERVICE BULLETIN
APPENDIX
Part Number  Qty  Serial Number
MXP147  14  SE25399 - SE25400 - SE25401 - SE25402 - SE25403 - SE25404 - SE25405 -
SE26020 - SE26379 - SE26380 - SE26487 - SE26488 - SE26489 - SE26490
MXP147-2  25  SE25147 - SE25148 - SE25150 - SE25393 - SE25395 - SE25440 - SE25441 -
SE25442 - SE25443 - SE25446 - SE25447 - SE25449 - SE25722 - SE25723 -
SE25726 - SE25728 - SE25729 - SE25731 - SE25732 - SE26026 - SE26027 -
SE26028 - SE26029 - SE26030 - SE26218
MXP147-5  50  SE25536 - SE25537  SE25538  SE25539 - SE25540 - SE25541 - SE25542
SE25543 - SE25545 - SE25546  SE25547 - SE26564 - SE25588 - SE25589
SE25591 - SE25592  SE25593  • SE25709 - SE25710 - SE25962 - SE25963
SE25964 - SE25965  SE25966  • SE25967 - SE25968 - SE25970 - SE25971
SE26083 - SE26085 - SE26087  SE26089 - SE26090 - SE26091 - SE26092
SE26204 - SE26206  - SE26207 -  SE26209 - SE26414 - SE26415 - SE26416
SE26418 - SE26420 - SE26421  SE26422 - SE26746 - SE26747 - SE26749
SE26751
MXP402  6  SE25112 - SE25114 - SE25230 - SE25417 - SE25418 - SE26081
MXP402-2  SE26859
MXP410-1  30  SE25065 - SE25086  SE25088 - SE25089 - SE25090 - SE25152 - SE25153 -
SE25156 - SE25157  SE25158  SE25159 - SE25160 - SE25161 - SE25162
SE25163 - SE25165  - SE25166 - SE25167 - SE25169 - SE26526 - SE26527 -
SE26528 - SE26529 - SE26530 - SE26531 - SE26532 - SE26642 - SE26643 -
SE26644 - SE26646
TABLE 1 - LIST OF CONCERNED EQUIPMENTS
Part Number  Qty  Serial Number
MXP147-2  7  SE25149 - SE25391 - SE25392 - SE25394 - SE25448 - SE25725 - SE25730
MXP147-3  4  SE25956 - SE25957 - SE26304 - SE26306
MXP147-5  11  SE25544 - SE26084 - SE26086 - SE26088 - SE26203 - SE26205 - SE26210
SE26412 - SE26413 - SE26417 - SE26419
MXP402  SE25113 - SE25115 - SE25228
MXP410-1  11  SE25064 - SE25084 - SE25085 - SE25087 - SE25091 - SE25151 - SE25154
SE25155 - SE25164 - SE25168 - SE26645
TABLE 2 - LIST OF INSPECTED EQUIPMENTS WITHOUT CHANGE OF THE SERIAL NUMBER
DATE: 20110510  SERVICE BULLETIN:  MXP1/4-35-175
REVISION N°: 2  PAGE: 7/7

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