@A340-500/600

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 21

TITLE: AIR CONDITIONING - CABIN PRESSURE CONTROL SYSTEMINSPECTION-SAFETY VALVE DESIGN LIFE EXCEEDANCE

MODIFICATION No.: None

This page transmits Revision No.01 of Service Bulletin No.A340-21-5044

ADDITIONAL WORK

**CONF ALL

No additional work is required by this revision for aircraft modified by any previous issue.

REASON

Revision No. 01 issued to modify the inspection flow chart and to modify accomplishment timescale.

CHANGES

FRONT MATTER

AIR CONDITIONING - CABIN

PRESSURE CONTROL SYSTEMINSPECTION-SAFETY VALVE DESIGN

LIFE EXCEEDANCE

SB TITLE UPDATED R

SUMMARY

REASON/DESCRIPTION/OPERATIONAL

CONSEQUENCES

REASON UPDATED R

EFFECTIVITY OPERATOR LIST UPDATED R

MANPOWER MANPOWER UPDATED R

PLANNING INFORMATION

EFFECTIVITY EFFECTIVITY RELATED INFORMATION

UPDATED

R

REASON

History HISTORY UPDATED R

Advantages ADVANTAGES UPDATED R

Operational/Maintenance

Consequences

OPERATIONAL/MAINTENANCE CONSEQUENCES

UPDATED

R

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 1

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SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

COMPLIANCE

Accomplishment Timescale ACCOMPLISHMENT TIMESCALE UPDATED R

MANPOWER MANPOWER UPDATED R

REFERENCES REFERENCED DOCUMENTATION UPDATED R

PUBLICATION AFFECTED PUBLICATIONS AFFECTED UPDATED R

ACCOMPLISHMENT INSTRUCTIONS

TASK 215044- 832-848-001-Inspection TASK SOLUTION UPDATED

NOTE UPDATED

R

Task associated data - 001 REFERENCED DOCUMENTATION UPDATED R

Subtask 215044-832-201-001 SUBTASK SOLUTION UPDATED

CONFIGURATION UPDATED

FIGURE REFERENCE UPDATED

REFERENCED DOCUMENTATION UPDATED

NOTE UPDATED

R

Subtask 215044-835-201-001 SUBTASK SOLUTION ADDED N

Fig. A-GFAAA

Fig. A-GFAAA Sheet 01 SHEET UPDATED R

Fig. A-GRAAA

Fig. A-GRAAA Sheet 01 SHEET UPDATED R

FILLING INSTRUCTIONS

This Service Bulletin has been generated electronically and is reissued as a complete document.

Replace the complete document.

Put this Revision Transmittal Sheet in front of the Service Bulletin.

HISTORY OF PREVIOUS REVISIONS

No previous revision

REVISION SEQUENCE

ORIGINAL: Nov 17/11

REVISION No. : 01 - Apr 10/13

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 2

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SERVICE BULLETIN

SUMMARY

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

This summary is for information only and is not approved for modification of the aircraft.

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 21

TITLE: AIR CONDITIONING - CABIN PRESSURE CONTROL SYSTEMINSPECTION-SAFETY VALVE DESIGN LIFE EXCEEDANCE

**CONF ALL

MODIFICATIONS

None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

The Cabin Pressure Control System (CPCS) safety valves, installed on the aft pressure bulkhead, are

parts of the pressure control and monitoring system. They prevent too much positive or negative

differential pressure in the fuselage.

The service life of the safety valve with Part Number (PN) 7012-18088 and 7012-18088-03 is limited to

50.000 Flight Hours (FH) or 12 years.

This Inspection Service Bulletin details the work required to identify the safety valves having exceeded

the service life limits. This Service Bulletin is also issued to advise all operators of A340-500/600

aircraft of the issue of Nord-Micro Service Bulletin No.18088-21-002.

This Inspection Service Bulletin will identify valves having exceeded 50.000 FH or 12 years in order to

ensure application of the restoration task to extend the service life to additional 50.000 FH or 12 years

or to ensure replacement of safety valves by serviceable safety valves. Furthermore, the reliability of

the pressure control and monitoring system will be increased.

Accomplishment of A340 MRBR task 21.31.00/09 constitutes compliance with requirements of this

Service Bulletin.

GENERAL EVALUATION

EVALUATION TABLE

COMPLIANCE MANDATORY (1) CANCELS INSPECTION SB NO

POTENTIAL AD YES A/C OPERATION AFFECTED NO

RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO

COST SAVING YES LROPS AFFECTED NO

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

SUMMARY

EVALUATION TABLE

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED YES

NOTE (1): Service Bulletin must be accomplished.

MATERIAL PRICE INFORMATION

No Material

EFFECTIVITY

This Service Bulletin is applicable to this (these) operator(s) :

06U 25R 36V 70U 72W AHY CES CHH DLH ETD HFY IBE QAF

QTR SAA SIA TAM THA UAE VIR

CONCURRENT REQUIREMENTS

None

REFERENCES / REPERCUSSIONS

TFU None

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER None

NATURE OF THE WORK

AIRCRAFT YES

EQUIPMENT YES

HARD NO

SOFT NO

OBRM NO

MANPOWER

Task 215044-832-848-001: Inspection

TOTAL MANHOURS 5.00

ELAPSED TIME (HOURS) 5.00

Additional manhours related to Vendor SB; refer to:

Restoration of safety valve Nord-Micro Service Bulletin No.

18088-21-002

APPENDICES

None

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 2

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SERVICE BULLETIN

SUMMARY

**CONF ALL

FR80

FR72

316HL

317HL 318HL

A

A

Z270

F_SB_215044_6_SAAA_01_00

Figure A-GSAAA - Sheet 01

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 3

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SERVICE BULLETIN

SUMMARY

This Page Intentionally Left Blank

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 4

6

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SERVICE BULLETIN

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 21

TITLE: AIR CONDITIONING - CABIN PRESSURE CONTROL SYSTEMINSPECTION-SAFETY VALVE DESIGN LIFE EXCEEDANCE

MODIFICATION No.: None

This document contains AIRBUS PROPRIETARY INFORMATION and shall at all times remain the

property of AIRBUS; no intellectual property right or licence is granted by AIRBUS in connection with

any information contained in it. It is delivered on the express condition that said document and the

information contained in it shall be treated as confidential, shall not be used for any purpose other than

that for which it is hereby delivered. It shall not be disclosed in whole or in part to third parties and shall

not be duplicated in any manner (except for the purposes of performing the tasks described hereunder

and provided that any recipient of such document shall comply with the conditions herein), without

AIRBUS prior written consent.

1. PLANNING INFORMATION

**CONF ALL

A. EFFECTIVITY

(1) Models

340-541 340-542 340-642

(2) Effectivity by MSN

0371 0376 0383 0391 0394 0410 0416-0417 0426 0431 0436 0440 0445 0449 0453

0457 0460 0464 0468 0471 0475 0478 0482 0485 0488 0492 0495 0499 0514 0517

0520 0523 0531 0534 0537 0540 0543 0547 0557 0560 0563 0566 0569 0572 0575

0577 0580 0583 0586 0601 0604 0606 0608 0611 0615 0617 0619 0622 0624 0626

0628 0630 0639 0672 0677 0681 0685 0689 0694 0698 0702 0706 0710 0715 0719

0723 0727 0736 0740 0744 0748 0753 0757 0761-0768 0771 0775 0779 0783 0787

0790 0794 0798 0804 0812 0829 0837 0846 0848 0870 0886 0894 0897 0902 0910

0912 0917 0924 0929 0933 0953 0960 0972 0981 0987 0993 1005 1017 1030 1040

1079 1091 1102 1122

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

(3) Effectivity by Operator

The Operator/MSN relationship is provided for information only and is correct at the time

of issue in accordance with the information available to AIRBUS. Any future changes

resulting from transfer of an aircraft from one operator to another will not be reflected in

this list unless the Service Bulletin is revised for another reason.

OPERATOR MSN

06U 1091 1102

25R 0924

36V 0391 0416

70U 0902

72W 0917

AHY 0779 0886 0894

CES 0468 0488 0514 0577 0586

CHH 0436 0453 0475

DLH 0482 0517 0523 0537 0540 0543 0566 0569 0580 0583 0762 0763

0767 0771 0790 0794 0812 0846 0848 0897 0972 0981 0987 1005

ETD 0748 0757 0761 0783 0829 0837 0870 0929 0933 1030 1040

HFY 0910 0912

IBE 0431 0440 0460 0601 0604 0606 0617 0619 0672 0702 0727 0744

0960 0993 1017 1079 1122

QAF 0495

QTR 0715 0740 0766 0798

SAA 0410 0417 0426 0531 0534 0547 0557 0626 0630

SIA 0478 0492 0499 0560 0563

TAM 0445 0464

THA 0624 0628 0677 0681 0689 0698 0710 0719 0775 0953

UAE 0394 0457 0471 0485 0520 0572 0608 0611 0685 0694

VIR 0371 0376 0383 0449 0575 0615 0622 0639 0706 0723 0736 0753

0764 0765 0768 0787 0804

(4) Configuration by MSN

MSN CONFIGURATION

0371 0376 0383 0391 0394 0410 0416 0417 0426 0431 0436

0440 0445 0449 0453 0457 0460 0464 0468 0471 0475 0478

0482 0485 0488 0492 0495 0499 0514 0517 0520 0523 0531

0534 0537 0540 0543 0547 0557 0560 0563 0566 0569 0572

0575 0577 0580 0583 0586 0601 0604 0606 0608 0611 0615

0617 0619 0622 0624 0626 0628 0630 0639 0672 0677 0681

0685 0689 0694 0698 0702 0706 0710 0715 0719 0723 0727

0736 0740 0744 0748 0753 0757 0761 0762 0763 0764 0765

0766 0767 0768 0771 0775 0779 0783 0787 0790 0794 0798

0804 0812 0829 0837 0846 0848 0870 0886 0894 0897 0902

0910 0912 0917 0924 0929 0933 0953 0960 0972 0981 0987

0993 1005 1017 1030 1040 1079 1091 1102 1122

001

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

(5) Configuration definition

**CONF 001

Config. 001 is valid for all the aircraft given in the effectivity of this inspection Service

Bulletin which have three safety valves installed.

(6) Material Effectivity

No Material Set

B. CONCURRENT REQUIREMENTS

None

C. REASON

(1) History

The Cabin Pressure Control System (CPCS) safety valves, installed on the aft pressure

bulkhead, are parts of the pressure control and monitoring system. They prevent too

much positive or negative differential pressure in the fuselage.

The service life of the safety valve with Part Number (PN) 7012-18088 and

7012-18088-03 is limited to 50.000 Flight Hours (FH) or 12 years.

(2) Objective/Action

This Inspection Service Bulletin details the work required to identify the safety valves

having exceeded the service life limits. This Service Bulletin is also issued to advise

all operators of A340-500/600 aircraft of the issue of Nord-Micro Service Bulletin

No.18088-21-002.

(3) Advantages

This Inspection Service Bulletin will identify valves having exceeded 50.000 FH or 12

years in order to ensure application of the restoration task to extend the service life

to additional 50.000 FH or 12 years or to ensure replacement of safety valves by

serviceable safety valves. Furthermore, the reliability of the pressure control and

monitoring system will be increased.

(4) Operational/Maintenance Consequences

Accomplishment of A340 MRBR task 21.31.00/09 constitutes compliance with

requirements of this Service Bulletin.

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 215044-832-848-001: Inspection

(1) Inspect the safety valve 316HL, 317HL and 318HL

(2) Restoration of safety valve

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

E. COMPLIANCE

(1) Classification

MANDATORY: Service Bulletin must be accomplished.

(2) Accomplishment Timescale

This Service Bulletin has been classified Mandatory. It is expected that an Airworthiness

Directive (AD) published by the European Aviation Safety Agency (EASA) will be issued

to confirm this classification. It is anticipated that the AD will confirm the (thresholds

and/or intervals and/or date) given below but reference should be made to the AD for

confirmation of the mandated accomplishment timescale.

Table 1, Config. All - General visual inspection of installed safety valve

Condition Action Compliance

All aircraft Check the approved

maintenance records to

determine the safety valve

accumulated Flight Hours (FH)

and years from first installation

on an aircraft.

None

The number of Flight Hours (FH)

accumulated by the installed

CPCS safety valve can be

positively established

Replace the CPCS safety valve

with a CPCS serviceable safety

valve

Whichever occurs later between

a) and b)

a) before the safety valve has

accumulated 50.000 Flight Hours

(FH) or 12 years since

manufacture or 12 years since

last restoration according to VSB

18088-21-002, whichever occurs

first

or

b) within 26 months after the

Service Bulletin issue date

The number of Flight Hours (FH)

accumulation by the CPCS

safety valve cannot be positively

established

Replace the CPCS safety valve

with a CPCS serviceable safety

valve

Within 26 months after the

Service Bulletin issue date

CPCS Safety valve is replaced Complete and send the report

sheet to AIRBUS

Within 3 month after the

replacement

Definition for a serviceable CPCS safety valve:

A serviceable CPCS safety valve is a safety valve which has accumulated less than 50.000 Flight

Hours (FH) and not older than 12 years since manufacture or since last restoration according to VSB

18088-21-002.

F. APPROVAL

The technical content of this document is approved under the authority of Design

Organisation Approval No. EASA.21J.031.

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 4

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SERVICE BULLETIN

If an aircraft listed in the effectivity has a modification or repair embodied that is not of

AIRBUS origin, and which affects the content of this Service Bulletin, the operator is

responsible for obtaining approval by its airworthiness authority for any adaptation necessary

before incorporation of the Service Bulletin.

G. MANPOWER

The manpower estimates given in this Service Bulletin are based on the direct labor cost to

do the work. These estimates assume that the work will be done by experienced personnel,

and may need to be revised upwards to suit operator’s circumstances. The estimates do not

include the time to prepare, plan or inspect the work. Manufacture and procurement of parts

and tools, drying times for paints, sealants, etc., and general administration work are also not

included.

Task 215044-832-848-001: Inspection

Get Access 2.00

On Aircraft

Inspect the safety valve 316HL, 317HL and 318HL 0.75

Tests 0.25

Close-Up 2.00

TOTAL MANHOURS 5.00

ELAPSED TIME (HOURS) 5.00

Additional manhours related to Vendor SB; refer to:

Restoration of safety valve Nord-Micro Service Bulletin No.

18088-21-002

NOTE: For man-hours required for the accomplishment of this Service Bulletin, refer

to Nord-Micro Service Bulletin No. 18088-21-002.

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 06-20-00 06-31-53 06-40-00

12-34-24 21-31-52 25-22-41

25-33-55

Elec. Std. Practices Manual (ESPM) 20-55-00

Vendor Service Bulletin (VSB) Nord-Micro Service Bulletin No.

18088-21-002

K. PUBLICATION AFFECTED

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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M. SPARES

None

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 6

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SERVICE BULLETIN

2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

Modification of removed equipment should be negotiated directly with

Nord-Micro

P.O. Box 630225

D 60352 Frankfurt

Germany

For ordering by phone : +49 6109 303 435

For ordering by fax : +49 6109 303 641

as per instructions given in Vendor Service Bulletin No. 18088-21-002.

(2) Price and Availability

Refer to the vendor Service Bulletin No. 18088-21-002 for the equipment modification

sales terms.

B. INDUSTRY SUPPORT INFORMATION

Refer to the Vendor Service Bulletin 18088-21-002 for the industry support terms.

C. LIST OF COMPONENTS

No Kit

D. LIST OF MATERIALS - OPERATOR SUPPLIED

None

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

None

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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This Page Intentionally Left Blank

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 215044-832-848-001 - Inspection

WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS

INCLUDED IN THE REFERENCED PROCEDURES.

CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP

ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY

AND MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENANCE

WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING,

COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO

THIS:

PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS

NECESSARY ON WIRING AND COMPONENTS.

REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND OTHER

CONTAMINATION.

THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION

AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.

IN CASE OF CONTAMINATION REFER TO ESPM 20-55-00.

Task Associated Data

Zone

260 270

Modified FIN

316HL 317HL 318HL

Manpower

TOTAL MANHOURS 5.00

ELAPSED TIME (HOURS) 5.00

Additional manhours related to Vendor SB; refer to:

Nord-Micro Service Bulletin No. 18088-21-002

A. GENERAL

NOTE: Accomplishment of A340 MRBR task 21.31.00/09 constitutes compliance with

requirements of this Service Bulletin.

(1) Subtask 215044-910-201-001 - Standard Practices

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 06-20-00, Page Block 001

06-31-53, Page Block 001

06-40-00, Page Block 001

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(a) For identification of Zones (Refer to AMM 06-20-00, Page Block 001).

(b) For the Frame identification (Refer to AMM 06-31-53, Page Block 001).

(c) For the identification of access panels (Refer to AMM 06-40-00, Page Block 001).

(d) Put blanking caps on the disconnected electrical connectors.

(2) Subtask 215044-839-201-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

Write in the applicable aircraft records that you have done all the work given in this

Service Bulletin.

B. PREPARATION

(1) Subtask 215044-941-201-001 - Job Set-up

Work Zones and Access Panels

Zone Access/Work location

260 Work location Frame 80

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 12-34-24-860-802

Task 21-31-52-000-801

Task 25-22-41-000-801

Task 25-33-55-000-801

(a) Make sure that the aircraft is electrically grounded (Refer to AMM Task

12-34-24-860-802).

(b) For the removal of attendant seat do the applicable job set-up procedure as given

in AMM Task 25-22-41-000-801.

(c) For the removal of aft stowage do the applicable job set-up procedure as given in

AMM Task 25-33-55-000-801.

(d) For the removal of safety valves do the applicable job set-up procedure as given in

AMM Task 21-31-52-000-801.

C. PROCEDURE

(1) Subtask 215044-832-201-001 - Inspect the safety valve 316HL, 317HL and 318HL

Work Zones and Access Panels

Zone Access/Work location

270 Work location Frame 80

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

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SERVICE BULLETIN

Manpower Resources

Manhours 0.75

Minimum number of person 1

Subtask elapsed time 0.75

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) Task 21-31-52-000-801

Task 21-31-52-400-801

Vendor Service Bulletin (VSB) Nord-Micro 18088-21-002

Fig. A-GBAAA

Inspect Savety valve

Sheet 01

Fig. A-GFAAA

Flow Chart

Sheet 01

Fig. A-GRAAA

Reporting Sheet

Sheet 01

(a) Within the compliance time as given in paragraph 1.E.(2), do a general visual

inspection of the installed Cabin Pressure Control System (CPCS) safety valves

316HL, 317HL and 318HL:

- Check the approved maintenance records to determine the accumulated Flight

Hours (FH) and years of installed safety valves since manufacture or since

last restoration according to Vendor Service Bulletin (VSB) Nord-Micro Service

Bulletin No. 18088-21-002.

- Determine, if the installed safety valves are in agreement with the definition of

the serviceable safety valve as given in the subsequent note and as shown on

Fig. A-GFAAA Sheet 01.

NOTE: A serviceable safety valve as given in the subsequent paragraphs is

defined as follows:

- A safety valve without marked amendment letter which has

accumulated less than 50.000 FH and is not older than 12

years since manufacture.

- A safety valve with marked amendment letter(s) ’Z’, which has

accumulated less than 50.000 FH and is not older than 12

years since the last restoration task per Vendor Service Bulletin

(VSB) Nord-Micro Service Bulletin No. 18088-21-002, refer to

SUBTASK 215044-835-201 001 Restoration of safety valve .

1 If the safety valve has accumulated less than 50.000 FH and is not older than

12 years since manufacture or since last restoration, the inspected safety

valve is serviceable.

- Necessary action:

Monitor the affected safety valve flight hours and years and replace it

before accumulation of 50.000 FH or 12 years, whichever occurs first, by

a serviceable Safety valve as follows:

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 11

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SERVICE BULLETIN

. Remove the affected safety valve as given in AMM Task

21-31-52-000-801.

. Install a serviceable safety valve as given in AMM Task

21-31-52-400-801.

- Refer to paragraph (b) ’Monitor the serviceable safety valve’.

2 If the safety valve has accumulated more than 50.000 FH or is older than 12

years since manufacture or since last restoration, whichever occurs first, the

inspected safety valve is not serviceable and has to be replaced.

- Necessary action:

Replace the affected safety valve within 26 months after the Service

Bulletin issue date by a serviceable safety valve as follows:

. Remove the affected safety valve as given in AMM Task

21-31-52-000-801.

. Install a serviceable safety valve as given in AMM Task

21-31-52-400-801.

- Refer to paragraph (b) ’Monitor the serviceable safety valve’.

3 If the accumulated service life or manufacturing date can not be positively

determined, the inspected safety valve is not serviceable and has to be

replaced.

- Necessary action:

Replace the affected safety valve within 26 months after the Service

Bulletin issue date by a serviceable safety valve as follows:

. Remove the affected safety valve as given in AMM Task

21-31-52-000-801.

. Install a serviceable safety valve as given in AMM Task

21-31-52-400-801.

- Refer to paragraph (b) ’Monitor the serviceable safety valve’.

(b) Monitor the installed safety valve life and replace it at interval not exceeding 50.000

FH or 12 years.

(c) After replacement of the serviceable safety valve complete and send the Report

Sheet within 3 months to AIRBUS, refer to Fig. A-GRAAA Sheet 01.

(2) Subtask 215044-835-201-001 - Restoration of safety valve

References

Vendor Service Bulletin (VSB) Nord-Micro 18088-21-002

(a) Do the restoration of the affected safety valve, refer to Nord-Micro Service Bulletin

No. 18088-21-002.

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 12

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SERVICE BULLETIN

D. TEST

(1) Subtask 215044-710-201-001 - Operational

Work Zones and Access Panels

Zone Access/Work location

270 Work location Frame 80

Manpower Resources

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) Task 21-31-52-400-801

(a) Do an operational test as given in the installation of the safety valve (Refer to AMM

Task 21-31-52-400-801).

E. CLOSE-UP

(1) Subtask 215044-942-201-001 - Close-up

Work Zones and Access Panels

Zone Access/Work location

270 Work location Frame 80

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 21-31-52-400-801

Task 25-22-41-400-801

Task 25-33-55-400-801

(a) For the installation of safety valve do the close-up procedure as given in AMM Task

21-31-52-400-801.

(b) For the installation of stowage 6535ML do the close-up procedure as given in AMM

Task 25-33-55-400-801.

(c) For the installation of the attendant seat do the close-up procedure as given in

AMM Task 25-22-41-400-801.

(d) Make sure that the work areas are clean and clear of tools and other items of

equipment.

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 13

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SERVICE BULLETIN

**CONF ALL

FR80

FR72

A

316HL

317HL 318HL

B

A

Z270

F_SB_215044_6_BAAA_01_01

B

316HL

317HL

318HL

IDENTIFICATION PLATES

TYPICAL

C

CONT

INSP

P/N

S/N

DATE

C 0002

SAFETY VALVE

7012−18088

xxxxxxx xx

xx/xx xxx

C 0002 AMENDMENTS

C

PLACARDS 

TO BE INSPECTED

Figure A-GBAAA - Sheet 01

Inspect Savety valve

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 14

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SERVICE BULLETIN

**CONF ALL

WITHIN THE COMPLIANCE TIME

AFTER SB ISSUANCE

(REFER TO TABLE 1 PARA. 1.E.(2) )

NO

THE INSTALLED

CPCS SAFETY VALVE

IS A SERVICEABLE VALVE YES

DETERMINE IF THE INSTALLED CPCS

SAFETY VALVE IS A SERVICEABLE VALVE

WHICH HAS ACCUMULATED LESS THAN 50000 FH

A SERVICEABLE CPCS SAFETY VALVE IS A SAFETY VALVE

NOTE:

01

AND IS NOT OLDER THAN 12 YEARS SINCE MANUFACTURE

OR YEARS SINCE LAST RESTORATION

ACCORDING TO VSB 18088−21−002.

REPLACE THE CPCS SAFTEY VALVE

ACCOMPLISHMENT OF

A340 MRBR TASK 21.31.00/09

UNKNOWN

ACCORDING TABLE 1 IN PARA 1.E.(2)

AS APPLICABLE TO AIRCRAFT TYP

CONSTITUTES COMPLIANCE WITH

REQUIREMENTS OF THIS SERVICE BULLETIN.

 REFER TO , 01

(REFER TO ) 01

(REFER TO ) 01

LEGEND:

CPCS = CABIN PRESURE CONTROL SYSTEM

MRBR = MAINTENANCE REVIEW BOARD REPORT

FH = FLIGHT HOUR

NOTE:

02

F_SB_215044_6_FAAA_01_13

Figure A-GFAAA - Sheet 01

Flow Chart

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 15

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@A340-500/600

SERVICE BULLETIN

**CONF ALL

REPORT SHEET

SERVICE BULLETIN NO:

DATE OF INSPECTION:

A/C MSN:

FLIGHT CYCLES:

FLIGHT HOURS:

A340−21−5044

AIRBUS DEPARTMENT SEEC5

CUSTOMER SERVICE DIRECTORATE

1 ROND POINT MAURICE BELLONTE

31707 BLAGNAC CEDEX

FRANCE

Please send reporting sheet to:

REMARKS :

YES

NO

SAFETY VALVES

318HL

YES

NO

YES

NO

316HL 317HL

EXCEEDED 50.000 FH OR 12 YEARS

HAS THE AFFECTED SAFETY VALVE

AFFECTED SAFETY VALVE REPLACED WITH:

A SERVICEABLE SAFETY VALVE WHICH HAS NOT

A SAFETY VALVE AMENDMENT "Z"

EXCEEDED 50.000 FH AND NOT OLDER THAN 12 YEARS

OR

THROUGH ACCOMPLISHMENT OF

VENDOR SERVICE BULLETIN 18088−21−002

F_SB_215044_6_RAAA_01_06

Figure A-GRAAA - Sheet 01

Reporting Sheet

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 16

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SERVICE BULLETIN

REPORTING SHEET

TITLE: AIR CONDITIONING - CABIN PRESSURE CONTROL SYSTEMINSPECTION-SAFETY VALVE DESIGN LIFE EXCEEDANCE

MODIFICATION No.: None

Please complete the appropriate item (A or B):

A - SB WILL BE embodied YES/NO (if NO please comment)

If YES, aircraft concerned (as per SB effectivity by default) and planned dates (month/year) of

embodiment:

B - SB HAS BEEN embodied on aircraft:

Operator comments:

From Airline:

Name/Title:

Signature: Date:

If operational documentation is affected (see Paragraph 1.K of this SB): If information is needed prior to

next normal revision or prior to SB embodiment, please indicate required service(s):

Either: Modification Operational Impact (MOI), if available YES/NO

Or : Intermediate revision YES/NO

Important Information: This SB will only be incorporated in your maintenance and operational

documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With

the next feasible revision, this will result in

- Updating of maintenance documentation to show pre and post SB data.

- Updating of maintenance and operational documentation to show post SB data after embodiment.

If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically

include them in the manual revisions. Refer to SIL 00-037 for detailed information.

Please return this completed sheet to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn: SDC32 Technical Data and Documentation Services

FAX: (+33) 5 61 93 28 06

e-mail: sb.reporting@airbus.com

or via your Resident Customer Support Office.

Alternatively, SB lists via letters or fax are also accepted.

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 1

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SERVICE BULLETIN

QUALITY PERCEPTION FORM

Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data

that you provide us will be used to analyse areas of difficulties and to take corrective action to further

improve the quality of our Service Bulletins.

We thank you for the time you have taken in completing this form.

(Please rate on a scale of 1 to 4, with 4 being the highest score)

- Quality rating of this SB 4321

- Quality rating of the Accomplishment Instructions 4321

- Quality rating of the Illustrations 4321

- Is this SB easy to understand ? Y/N

If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a

short description of the issue.

Planning Material Instructions

X Effectivity X Kit content X Preparation

X Reason X List of Materials Operator Supplied X Mod/Inspection

X Manpower X Industry support X Test

X References X Re-identification X Close-Up

X Publication X Tooling X Illustrations

Comments:

Operator: Date:

Name/Title:

Please return this form to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn : SEM4 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.

DATE: Nov 17/11 SERVICE BULLETIN No.: A340-21-5044

REVISION No.: 01 - Apr 10/13 Page: 1

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