@A340-500/600

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.

ATA SYSTEM: 34

TITLE: NAVIGATION - SENSORS POWER SUPPLY AND SWITCHING -

INSTALL THALES ANGLE OF ATTACK SENSORS PN C16291AB

**CONF ALL

MODIFICATIONS

MODIFICATION CLASSIFICATION

MAJOR None

MINOR 58555S30640

NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the

mass, balance, structural strength, reliability, operational characteristics affecting the

airworthiness of the product. All other changes are major changes.

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

The design of the heater of THALES Angle Of Attack (AOA) sensor PN C16291AA suffers from an

ageing issue, which affects the heating efficiency of the vane

The loss of AOA heating efficiency appears over a number of flight hours which depends on the

operational life of the AOA sensors, especially the number of flight cycles (vibration modes), power

ON/OFF sequences, handling, etc... accumulated by the vane.

At system level , consequences are a possible loss of windshear and/or alpha protection and/or

spurious reversion into Alternate law.

Airbus recommends operators to perform a recurrent functional test of the AOA heating on affected

AOA sensor PN C16291AA, as per Inspection Service Bulletin No. A340-34-5062 (refer to OIT ref.

SE999.0036/08/BB dated on 2nd May 2008).

In order to increase the reliability of AOA sensors and to reduce the probability of vane heating failures,

the vane of THALES AOA probe PN C16291AA has been redesigned.

This Service Bulletin is published to inform all operators of A340-500/600 aircraft of the issue of

THALES AVIONICS Service Bulletin No. C16291A-34-009.

This Service Bulletin proposes replacement of the three Thales AOA sensors PN C16291AA by three

new THALES AOA sensors PN C16291AB.

.

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

REVISION No.: 00 - Oct 09/09 Page: 1

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@A340-500/600

SERVICE BULLETIN

SUMMARY

Accomplishment of this Service Bulletin improves the reliability of AOA sensors and cancels the

inspection requirements of Service Bulletins No. A340-34-5062.

The consequences on schedule maintenance activities of the embodiment of this Service Bulletin

are that the Maintenance Planning Document 341300-02-2 will be no more required after the

accomplishment of this Service Bulletin.

GENERAL EVALUATION

EVALUATION TABLE

COMPLIANCE RECOMMENDED CANCELS INSPECTION SB YES

POTENTIAL AD NO A/C OPERATION AFFECTED NO

RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO

COST SAVING NO LROPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED YES

MATERIAL PRICE INFORMATION

MATERIAL PRICE INFORMATION TABLE

MATERIAL SET QTY PER

A/C

PRICE PER

A/C (USD)

MAIN PARTS

Equipment BFEA01 1 See SB Sensor

EFFECTIVITY

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

62X 72W AIB ARA DLH ETD HFY IBE KFR QAF QTR SAA TAM

UAE

CONCURRENT REQUIREMENTS

None

REFERENCES / REPERCUSSIONS

TFU 34.10.00.038

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER OIT SE999.0036/08/BB

NATURE OF THE WORK

AIRCRAFT NO

EQUIPMENT YES

HARD YES

SOFT NO

OBRM NO

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SERVICE BULLETIN

SUMMARY

MANPOWER

Task 345070-831-801-001: Modification

TOTAL MANHOURS 4.50

ELAPSED TIME (HOURS) 4.50

Additional manhours related to Vendor SB; refer to:

Modify the AOA sensors 3FP1, 3FP2 and 3FP3 THALES AVIONICS Service Bulletin

No. C16291A-34-009

APPENDICES

None

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SERVICE BULLETIN

SUMMARY

**CONF ALL

FR19

FR18

A

3FP1

3FP2

3FP3

A

A

TYPICAL INSTALLATION

A

F_SB_345070_5_SUAA_01_00

Figure A-FSUAA - Sheet 01

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

REVISION No.: 00 - Oct 09/09 Page: 4

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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

ATA SYSTEM: 34

TITLE: NAVIGATION - SENSORS POWER SUPPLY AND SWITCHING -

INSTALL THALES ANGLE OF ATTACK SENSORS PN C16291AB

MODIFICATION No.: 58555S30640

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

NOTE: This modification is embodied before delivery on aircraft MSN 1079 , 1091

and subsequent.

This Service bulletin is only applicable to aircraft on which modification

No. 49228S16346 (INSTALL ANGLE OF ATTACK SENSOR SEXTANT P/N

C16291AA) is embodied.

(1) Models

340-541 340-542 340-642

(2) Effectivity by MSN

0394 0410 0417 0426 0431 0440 0445 0457 0460 0464 0471 0482 0485 0495 0517

0520 0523 0531 0534 0537 0540 0543 0547 0557 0566 0569 0572 0580 0583 0601

0604 0606 0608 0611 0617 0619 0626 0630 0672 0685 0694 0702 0715 0727 0740

0744 0748 0757 0761-0763 0766-0767 0771 0779 0783 0790 0794 0798 0812 0829

0837 0846 0848 0856 0870 0886 0894 0897 0902 0910 0912 0917 0929 0933 0960

0972 0981 0987 0993 1005 1017 1030 1040

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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

62X 0779

72W 0917

AIB 0856

ARA 0910 0912

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 0894

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

0960 0993 1017

KFR 0886 0902

QAF 0495

QTR 0715 0740 0766 0798

SAA 0410 0417 0426 0531 0534 0547 0557 0626 0630

TAM 0445 0464

UAE 0394 0457 0471 0485 0520 0572 0608 0611 0685 0694

(4) Configuration by MSN

MSN CONFIGURATION

0394 0410 0417 0426 0431 0440 0445 0457 0460 0464 0471

0482 0485 0495 0517 0520 0523 0531 0534 0537 0540 0543

0547 0557 0566 0569 0572 0580 0583 0601 0604 0606 0608

0611 0617 0619 0626 0630 0672 0685 0694 0702 0715 0727

0740 0744 0748 0757 0761 0762 0763 0766 0767 0771 0779

0783 0790 0794 0798 0812 0829 0837 0846 0848 0856 0870

0886 0894 0897 0902 0910 0912 0917 0929 0933 0960 0972

0981 0987 0993 1005 1017 1030 1040

001

(5) Configuration definition

**CONF 001

Config. 01 is valid for all the aircraft given in the effectivity of this Service Bulletin as a

standard configuration.

(6) Material Effectivity

MATERIAL QTY PER A/C SEE NOTES

Equipment BFEA01 1

B. CONCURRENT REQUIREMENTS

None

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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SERVICE BULLETIN

C. REASON

(1) History

The design of the heater of THALES Angle Of Attack (AOA) sensor PN C16291AA

suffers from an ageing issue, which affects the heating efficiency of the vane

The loss of AOA heating efficiency appears over a number of flight hours which depends

on the operational life of the AOA sensors, especially the number of flight cycles

(vibration modes), power ON/OFF sequences, handling, etc... accumulated by the vane.

At system level , consequences are a possible loss of windshear and/or alpha protection

and/or spurious reversion into Alternate law.

Airbus recommends operators to perform a recurrent functional test of the AOA

heating on affected AOA sensor PN C16291AA, as per Inspection Service Bulletin No.

A340-34-5062 (refer to OIT ref. SE999.0036/08/BB dated on 2nd May 2008).

(2) Objective/Action

In order to increase the reliability of AOA sensors and to reduce the probability of vane

heating failures, the vane of THALES AOA probe PN C16291AA has been redesigned.

This Service Bulletin is published to inform all operators of A340-500/600 aircraft of the

issue of THALES AVIONICS Service Bulletin No. C16291A-34-009.

This Service Bulletin proposes replacement of the three Thales AOA sensors PN

C16291AA by three new THALES AOA sensors PN C16291AB.

.

(3) Advantages

Accomplishment of this Service Bulletin improves the reliability of AOA sensors and

cancels the inspection requirements of Service Bulletins No. A340-34-5062.

(4) Operational/Maintenance Consequences

The consequences on schedule maintenance activities of the embodiment of this Service

Bulletin are that the Maintenance Planning Document 341300-02-2 will be no more

required after the accomplishment of this Service Bulletin.

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 345070-831-801-001: Modification

(1) Remove the AOA sensors 3FP1, 3FP2 and 3FP3

(2) Modify the AOA sensors 3FP1, 3FP2 and 3FP3

(3) Install the AOA sensors 3FP1, 3FP2 and 3FP3

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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SERVICE BULLETIN

E. COMPLIANCE

(1) Classification

RECOMMENDED

(2) Accomplishment Timescale

Accomplishment of this Service Bulletin is recommended at the earliest opportunity

where manpower and facilities are available.

F. APPROVAL

Approved under EASA Design Organisation Approval No. EASA 21J.031.

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 345070-831-801-001: Modification

Get Access 0.50

On Aircraft

Remove the AOA sensors 3FP1, 3FP2 and 3FP3 1.50

Install the AOA sensors 3FP1, 3FP2 and 3FP3 1.50

Tests 0.50

Close-Up 0.50

TOTAL MANHOURS 4.50

ELAPSED TIME (HOURS) 4.50

Additional manhours related to Vendor SB; refer to:

Modify the AOA sensors 3FP1, 3FP2 and 3FP3 THALES AVIONICS Service Bulletin

No. C16291A-34-009

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

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SERVICE BULLETIN

J. REFERENCES

Aircraft Maintenance Manual (AMM) 12-34-24 34-11-19

ATA Common Support Data Dictionary (CSDD),

Chapter 2

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

Service Bulletin (SB) A340-34-5062

Vendor Service Bulletin (VSB) THALES AVIONICS Service

Bulletin No. C16291A-34-009

K. PUBLICATION AFFECTED

Aircraft Wiring List (AWL)

Illustrated Parts Catalog (IPC) 34-11-01 34-11-19

Maintenance Planning Document (MPD) 34-13-00

L. INTERCHANGEABILITY/MIXABILITY

DESCRIPTION OLD PART N ̊ NEW PART N ̊ INT MIXABILITY SEE

NOTES

AOA sensor C16291AA C16291AB 01 YES (1)

NOTE: For definitions of interchangeability codes in column INT., refer to ATA

Common Support Data Dictionary (CSDD), Chapter 2.

NOTE: Only the mixability configuration(s) and condition(s) stated in this Service

Bulletin are approved.

NOTE (1): Authorized without specific configuration / condition : it is possible to mix old

and new PN on a same aircraft.

M. SPARES

AOA sensor C16291AA

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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This Page Intentionally Left Blank

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SERVICE BULLETIN

2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

Equipment BFEA01 Modification of removed equipment should be

negotiated directly with THALES AVIONICS

as per instructions given in Service Bulletin

No C16291A-34-009.

(2) Price and Availability

Equipment BFEA01

Refer to the vendor Service Bulletin No C1629A-34-009 for the equipment modification

sales terms.

B. INDUSTRY SUPPORT INFORMATION

Refer to the Vendor Service Bulletin (VSB) for the industry support terms.

C. LIST OF COMPONENTS

No Kit

D. LIST OF MATERIALS - OPERATOR SUPPLIED

(1) Consumable Materials

None

(2) Components

None

(3) Equipment

Equipment BFEA01

ITEM NEW PART N ̊ QTY (UM) KEYWORD ITEM OLD PART N ̊ INT SEE

NOTES

C16291AB 3 SENSOR C16291AA 01

NOTE: For definitions of interchangeability codes in column INT., refer to ATA

Common Support Data Dictionary (CSDD), Chapter 2.

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

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SERVICE BULLETIN

F. TOOLING

None

DATE: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 345070-831-801-001 - Modification

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

121 122

Modified FIN

3FP1 3FP2 3FP3

Manpower

TOTAL MANHOURS 4.50

ELAPSED TIME (HOURS) 4.50

Additional manhours related to Vendor SB; refer

to:

THALES AVIONICS Service

Bulletin No. C16291A-34-009

A. GENERAL

(1) Subtask 345070-839-001-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

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

Service Bulletin.

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B. PREPARATION

(1) Subtask 345070-941-001-001 - Job Set-up

Manpower Resources

Skills NON SPECIFIC

References

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

Task 34-11-19-000-801

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

12-34-24-860-802)

(b) Do the preparation procedure as specified in the removal of the AOA sensors

(3FP1, 3FP2 and 3FP3), (Refer to AMM Task 34-11-19-000-801).

C. PROCEDURE

(1) Subtask 345070-900-001-001 - Remove the AOA sensors 3FP1, 3FP2 and 3FP3

Work Zones and Access Panels

Zone Access/Work location

121

122

Manpower Resources

Manhours 1.50

Minimum number of person 1

Subtask elapsed time 1.50

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 34-11-19-000-801

(a) Remove the AOA sensors (Refer to AMM Task 34-11-19-000-801) :

FIN 3FP1

1 AOA sensor C16291AA

and

FIN 3FP2

1 AOA sensor C16291AA

and

FIN 3FP3

1 AOA sensor C16291AA

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(2) Subtask 345070-831-001-001 - Modify the AOA sensors 3FP1, 3FP2 and 3FP3

References

Vendor Service Bulletin (VSB) THALES AVIONICS C16291A-34-009

(a) Modify the AOA sensors (3FP1, 3FP2 and 3FP3) :

Refer to THALES AVIONICS Service Bulletin No. C16291A-34-009

(3) Subtask 345070-900-002-001 - Install the AOA sensors 3FP1, 3FP2 and 3FP3

Work Zones and Access Panels

Zone Access/Work location

121

122

Manpower Resources

Manhours 1.50

Minimum number of person 1

Subtask elapsed time 1.50

Skills NON SPECIFIC

Material necessary to do the job

Equipment BFEA01

ITEM NEW PART N ̊ QTY (UM) KEYWORD SEE

NOTES

C16291AB 3 SENSOR

References

Aircraft Maintenance Manual (AMM) Task 34-11-19-400-801

(a) Install the AOA sensors (Refer to AMM Task 34-11-19-400-801) :

FIN 3FP1

1 AOA sensor C16291AB

and

FIN 3FP2

1 AOA sensor C16291AB

and

FIN 3FP3

1 AOA sensor C16291AB

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D. TEST

(1) Subtask 345070-700-001-001 - Testing

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 34-11-19-400-801

(a) Job Set-up :

1 Remove the safety clips and tags and close the circuit breakers as specified

after the installation of the AOA sensors (3FP1, 3FP2, 3FP3), (Refer to AMM

Task 34-11-19-400-801).

(b) Procedure :

1 Do a test procedure as specified after the installation of the AOA sensors

(3FP1, 3FP2, 3FP3) (Refer to AMM Task 34-11-19-400-801).

E. CLOSE-UP

(1) Subtask 345070-942-001-001 - Close-up

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 34-11-19-400-801

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

equipment.

(b) Do the close-up procedure as specified in the installation of the AOA sensors

(3FP1, 3FP2, 3FP3), (Refer to AMM Task 34-11-19-400-801).

(c) Restore the systems and aircraft to normal operating condition.

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REPORTING SHEET

TITLE: NAVIGATION - SENSORS POWER SUPPLY AND SWITCHING -

INSTALL THALES ANGLE OF ATTACK SENSORS PN C16291AB

MODIFICATION No.: 58555S30640

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: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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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 4 3 2 1

- Quality rating of the Accomplishment Instructions 4 3 2 1

- Quality rating of the Illustrations 4 3 2 1

- 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: Oct 09/09 SERVICE BULLETIN No.: A340-34-5070

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