# Airbus Service Bulletin A340-34-4304

Copy: No revision named ("A340-34-4304"), 29 pages: PDF https://openairdocs.org/files/sha256/c9/49/c949df116ee66a3eee59512c3bc9a8f83da88419d07ba5c4f5dda476e8cfe8c0; text https://openairdocs.org/service-documents/airbus/a340-34-4304/file/c949df116ee6.md. Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2017-1096; AD 2018-06-01 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Airbus](https://openairdocs.org/service-documents/airbus.md)
- Type: Service bulletin (Service Bulletin)
- Number: A340-34-4304
- Page: https://openairdocs.org/service-documents/airbus/a340-34-4304

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2018-06-01](https://openairdocs.org/ad/2018-06-01.md), effective Apr 30, 2018: No revision named

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/airbus/a340-34-4304/proposed.md).

## Text (29 pages)

Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2017-1096; AD 2018-06-01 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

@A340
SERVICE BULLETIN
SUMMARY
AIRBUS
CUSTOMER SERVICES DIRECTORATE
1 Rond Point Maurice Bellonte
31707 BLAGNAC CEDEX
FRANCE
T e l:( 3 3 )56 19 33 33 3
Telex : AIRBU 530526F
F a x:( 3 3 )56 19 34 25 1
This summary is for information only and is not approved for modification of the aircraft.
MANDATORY
 MANDATORY
 MANDATORY
ATA SYSTEM: 34
TITLE: NAVIGATION - TCAS - INSTA LL NEW TCAS SOFTWARE TO CORRECT
UNJUSTIFIED RESOLUTION ADVISORY
**CONF ALL
MODIFICATIONS
MODIFICATION CLASSIFICATION
MAJOR
 206608S34248
MINOR
 None
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
Unjustified Traffic Alert and Collision Avoidance System (TCAS) resolution advisory (RA) triggered with
Honeywell TCAS TPA100-B PN 940-0351-001 have been reported. The unexpected RAs are triggered
when two aircraft are crossing at the same flight level or are in vertical convergence but when
conditions for RA generation are not satisfied. Usually, the unexpected RA is preceded by a very short
TA (traffic advisory) and in some cases no aural TA is provided.
The duration of unexpected RA can be up to 1 minute.
The crew has then to comply with TCAS order that lead to unnecessary avoidance maneuvers.
This Service Bulletin is published to advise all operators of A340 aircraft family of the issue of
HONEYWELL Service Bulletin No. 940-0351-34-0005.
This Service Bulletin replaces the TCAS (FIN 1SG) Honeywell TPA-100B change 7.1 PN 940-0351-001
installed with MOD 57609S30373 (Service Bulletin No. A340-34-4263) or with MOD 202338S31979
(Service Bulletin No. A340-34-4254) by a new one PN 940-0351-005 which corrects unjustified
resolution advisory with software changes.
The introduction of this new TCAS standard will include the following changes:
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 2

@A340
SERVICE BULLETIN
SUMMARY
- Implementation of change 2 of DO-300 to solve the in-service occurrence titled "Eurocontrol report
of False TCAS Resolution Advisory with TPA100-B"
- Modify Global Positioning System (GPS) check from 500ms to 200ms for robustness
- Modification linked to minor open anomalies correction and product robustness improvements and
enhancements.
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
 NO
 LROPS AFFECTED
 NO
STRUCTURAL LIFE EXTN
 NO
 VENDOR SB INVOLVED
 YES
NOTE
 (1)
: Service Bulletin must be accomplished.
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
 TCAS Computer
EFFECTIVITY
This Service Bulletin is applicable to this (these) operator(s) :
17M 65W AIB ARG CAL CPA DGA FIN KAC PAL PUE ROI S3R
SAA SAS SFB TAP
CONCURRENT REQUIREMENTS
Accomplishment of this Service Bulletin requires the prior or simultaneous accomplishment of the
following Service Bulletin(s):
Service Bulletin No. A340-34-4263
A340-34-4254
NOTE
: Service Bulletin No. A340-34-4263 (NAVIGATION - TCAS - INSTALL A NEW
HONEYWELL TCAS TPA-100B) which applies Modification No. 57609S30373.
NOTE
: Service Bulletin No. A340-34-4254 (NAVIGATION - TCAS - INSTALL A NEW
HONEYWELL TCAS TPA-100B) which applies Modification No. 202338S31979.
NOTE
: Accomplish either Service Bulletin No. A340-34-4263 or Service Bulletin No.
A340-34-4254 as per effectivity specified in these Service Bulletins.
REFERENCES / REPERCUSSIONS
TFU
 34.43.00.022
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 2
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 3

@A340
SERVICE BULLETIN
SUMMARY
OEB
 None
AOT
 None
SIL
 None
ISI
 None
LINE MAINTENANCE AFFECTED
 No
LIFE LIMIT
 None
OTHER
 None
NATURE OF THE WORK
AIRCRAFT
 NO
EQUIPMENT
 YES
HARD
 NO
SOFT
 YES
OBRM
 NO
MANPOWER
Task 344304-831-801-001: Option 1 - Modify the TCAS Computer
TOTAL MANHOURS
 1.50
ELAPSED TIME (HOURS)
 1.50
Additional manhours relat ed to Vendor SB; refer to:
Modify the Traffic Collision Avoidance System (TCAS)
Computer by Vendor HONEYWELL Service Bulletin No.
940-0351-34-0005
Honeywell Service Bulletin No.
940-0351-34-0005
Task 344304-831-802-001: Option 2 - Replace the TCAS Computer
TOTAL MANHOURS
 2.00
ELAPSED TIME (HOURS)
 2.00
APPENDICES
None
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 3
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 4

@A340
SERVICE BULLETIN
SUMMARY
**CONF ALL
A
800VU
FR18
FR20
A
811VU
1SG
Z120
THE TCAS COMPUTER
MODIFY OR REPLACE
F_SB_344304_5_SAAA_01_01
Figure A-FSAAA - Sheet 01
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 4
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 5

@A340
SERVICE BULLETIN
AIRBUS
CUSTOMER SERVICES DIRECTORATE
1 Rond Point Maurice Bellonte
31707 BLAGNAC CEDEX
FRANCE
T e l:( 3 3 )56 19 33 33 3
Telex : AIRBU 530526F
F a x:( 3 3 )56 19 34 25 1
MANDATORY
 MANDATORY
 MANDATORY
ATA SYSTEM: 34
TITLE: NAVIGATION - TCAS - INSTA LL NEW TCAS SOFTWARE TO CORRECT
UNJUSTIFIED RESOLUTION ADVISORY
MODIFICATION No.: 206608S34248
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 Service Bulletin is only applicable on aircraft on which Honeywell TCAS
TPA100-B PN 940-0351-001 is installed.
(1) Models
340-211 340-212 340-213 340-311 340-312 340-313
(2) Effectivity by MSN
0029 0041 0044 0046 0075 0079 0081 0089-0091 0101 0104 0123 0126 0128
0136-0137 0142 0147 0157 0160 0192-0193 0197 0199 0201 0204 0208 0212 0215
0218 0220 0227-0228 0302 0318 0332 0378 0387 0402 0406 0411 0413 0415 0424
0430 0433 0435 0450 0459 0467 0470 0474 0541 0544 0582 0590 0643 0646 0651
0835 0844 0921 0938 0955
(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.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 6

@A340
SERVICE BULLETIN
OPERATOR
 MSN
17M
 0955
65W
 0029
AIB
 0192
ARG
 0123 0126 0128 0193
CAL
 0402 0406 0411 0415 0433 0541
CPA
 0136 0137 0142 0147 0157 0160 0208 0218 0220 0227 0228
DGA
 0075 0081
FIN
 0835 0844 0921 0938
KAC
 0089 0090 0101 0104
PAL
 0302 0318 0332 0387 0459 0474
PUE
 0212 0215
ROI
 0199 0201
S3R
 0204
SAA
 0197 0378 0544 0582 0590 0643 0646 0651
SAS
 0413 0424 0430 0435 0450 0467 0470
SFB
 0046
TAP
 0041 0044 0079 0091
(4) Configuration by MSN
MSN
 CONFIGURATION
0029 0041 0044 0046 0075 0079 0081 0089 0090 0091 0101
0104 0123 0126 0128 0136 0137 0142 0147 0157 0160 0192
0193 0197 0199 0201 0204 0208 0212 0215 0218 0220 0227
0228 0302 0318 0332 0378 0387 0402 0406 0411 0413 0415
0424 0430 0433 0435 0450 0459 0467 0470 0474 0541 0544
0582 0590 0643 0646 0651 0835 0844 0921 0938 0955
001
(5) Configuration definition
**CONF 001
Config. 001 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
Reidentified part set REIDA01
 1
Equipment BFEA01
 1
B. CONCURRENT REQUIREMENTS
Accomplishment of this Service Bulletin requires the prior or simultaneous accomplishment of
the following Service Bulletin(s):
Service Bulletin No. A340-34-4263
A340-34-4254
NOTE
: Service Bulletin No. A340-34-4263 (NAVIGATION - TCAS - INSTALL
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 2
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 7

@A340
SERVICE BULLETIN
A NEW HONEYWELL TCAS TPA-100B) which applies Modification No.
57609S30373.
NOTE
: Service Bulletin No. A340-34-4254 (NAVIGATION - TCAS - INSTALL
A NEW HONEYWELL TCAS TPA-100B) which applies Modification No.
202338S31979.
NOTE
: Accomplish either Service Bulletin No. A340-34-4263 or Service Bulletin No.
A340-34-4254 as per effectivity specified in these Service Bulletins.
C. REASON
(1) History
Unjustified Traffic Alert and Collision Avoidance System (TCAS) resolution advisory (RA)
triggered with Honeywell TCAS TPA100-B PN 940-0351-001 have been reported. The
unexpected RAs are triggered when two aircraft are crossing at the same flight level or
are in vertical convergence but when conditions for RA generation are not satisfied.
Usually, the unexpected RA is preceded by a very short TA (traffic advisory) and in
some cases no aural TA is provided.
The duration of unexpected RA can be up to 1 minute.
The crew has then to comply with TCAS order that lead to unnecessary avoidance
maneuvers.
(2) Objective/Action
This Service Bulletin is published to advise all operators of A340 aircraft family of the
issue of HONEYWELL Service Bulletin No. 940-0351-34-0005.
This Service Bulletin replaces the TCAS (FIN 1SG) Honeywell TPA-100B change 7.1 PN
940-0351-001 installed with MOD 57609S30373 (Service Bulletin No. A340-34-4263)
or with MOD 202338S31979 (Service Bulletin No. A340-34-4254) by a new one PN
940-0351-005 which corrects unjustified resolution advisory with software changes.
(3) Advantages
The introduction of this new TCAS standard will include the following changes:
- Implementation of change 2 of DO-300 to solve the in-service occurrence titled
"Eurocontrol report of False TCAS Resolution Advisory with TPA100-B"
- Modify Global Positioning System (GPS) check from 500ms to 200ms for
robustness
- Modification linked to minor open anomalies correction and product robustness
improvements and enhancements.
(4) Operational/Maintenance Consequences
None
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 3
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 8

@A340
SERVICE BULLETIN
D. DESCRIPTION
To accomplish this Service Bulletin it is necessary to :
Task 344304-831-801-001: Option 1 - Modify the TCAS Computer
(1) Modify the Traffic Collision Avoidance System (TCAS) Computer by Vendor
HONEYWELL Service Bulletin No. 940-0351-34-0005
Task 344304-831-802-001: Option 2 - Replace the TCAS Computer
(1) Remove the Traffic Collision Avoidance System (TCAS) Computer
(2) Install the Traffic Collision Avoidance System (TCAS) Computer
E. COMPLIANCE
(1) Classification
MANDATORY: Service Bulletin must be accomplished.
(2) Accomplishment Timescale
Accomplishment of this Service Bulletin shall be completed within 12 months from the
issue date of this Service Bulletin.
This Service Bulletin has been classified Mandatory. It is expected that an Airworthiness
Directive (AD) published by the European Av iation Safety Agenc y (EASA) will be issued
to confirm this classification. It is anticipated that the AD will confirm the threshold
given but reference should be made to the AD for confirmation of the mandated
accomplishment timescale.
F. APPROVAL
The technical content of this document is approved under the authority of 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 344304-831-801-001: Option 1 - Modify the TCAS Computer
Get Access
 0.50
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 4
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 9

@A340
SERVICE BULLETIN
Task 344304-831-801-001: Option 1 - Modify the TCAS Computer
Tests
 0.50
Close-Up
 0.50
TOTAL MANHOURS
 1.50
ELAPSED TIME (HOURS)
 1.50
Additional manhours relat ed to Vendor SB; refer to:
Modify the Traffic Collision Avoidance System (TCAS)
Computer by Vendor HONEYWELL Service Bulletin
No. 940-0351-34-0005
Honeywell Service Bulletin No.
940-0351-34-0005
Task 344304-831-802-001: Option 2 - Replace the TCAS Computer
Get Access
 0.50
On Aircraft
Remove the Traffic Collision Avoidance System
(TCAS) Computer
0.25
Install the Traffic Collision Avoidance System (TCAS)
Computer
0.25
Tests
 0.50
Close-Up
 0.50
TOTAL MANHOURS
 2.00
ELAPSED TIME (HOURS)
 2.00
H. WEIGHT AND BALANCE
Not Changed
I. ELECTRICAL LOAD DATA
Not Changed
J. REFERENCES
Aircraft Maintenance Manual (AMM)
 06-20-00 06-31-53 06-41-53
12-34-24 20-16-00 24-42-00
34-43-00 34-43-34 45-10-00
52-41-00
ATA Common Support Data Dictionary (CSDD),
Chapter 2
Elec. Std. Practices Manual (ESPM)
 20-55-00
Service Bulletin (SB)
 A340-34-4254
A340-34-4263
Vendor Service Bulletin (VSB)
 Honeywell Service Bulletin No.
940-0351-34-0005
K. PUBLICATION AFFECTED
Aircraft Wiring List (AWL)
Illustrated Parts Catalog (IPC)
 34-43-08 34-43-34
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 5
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 10

@A340
SERVICE BULLETIN
L. INTERCHANGEABILITY/MIXABILITY
DESCRIPTION
 OLD PART N˚
 NEW PART N˚
 INT
 MIXABILITY
 SEE
NOTES
TCAS Computer
 940-0351-001
 940-0351-005
 01
 Not
Applicable
NOTE
: For definitions of interchangeability codes in column INT., refer to ATA
Common Support Data Dictionary (CSDD), Chapter 2.
M. SPARES
TCAS Computer 940-0351-001
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 6
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 11

@A340
SERVICE BULLETIN
2. MATERIAL INFORMATION
**CONF ALL
A. MATERIAL - PRICE AND AVAILABILITY
(1) Procurement Addresses
Vendor parts are to be procured from
Equipment BFEA01
 Honeywell International Inc.
15001 N.E. 36 Street
Redmond, Washington 98052-5317
U.S.A.
Telephone: 800-601-3099 (Toll Free
U.S.A./Canada)
Telephone: 602-365-3099 (International
Direct)
Website: www.myaerospace.com
(2) Price and Availability
Equipment BFEA01
No AIRBUS kit will be provided.
Procurement terms for the equipment must be negotiated with the equipment supplier.
Refer to the Honeywell Service Bulletin No. 940-0351-34-0005 for the equipment
modification sales terms.
B. INDUSTRY SUPPORT INFORMATION
AIRBUS will not provide industry support for accomplishment of this Service Bulletin.
Industry support terms for the equipment must be negotiated with the equipment supplier.
Modification of removed equipment should be negotiated directly with Honeywell as per
instructions given in Honeywell Service Bulletin No. 940-0351-34-0005.
Refer to the Honeywell Service Bulletin No. 940-0351-34-0005 for the industry support terms
of the Vendor Service Bulletin parts and labor.
This Service Bulletin is the subject of an AIRBUS monitored retrofit campaign.
For the organisation of this retrofit, you are kindly requested to contact AIRBUS retrofit
management department.
AIRBUS
CUSTOMER SERVICES DIRECTORATE
1 Rond Point Maurice Bellonte
31707 BLAGNAC CEDEX
France
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 7
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 12

@A340
SERVICE BULLETIN
E-mail: monitored.retrofit@airbus.com
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
940-0351-005
 1
 TCAS
 940-0351-001
 01
 (1)
NOTE
: For definitions of interchangeability codes in column INT., refer to ATA
Common Support Data Dictionary (CSDD), Chapter 2.
NOTE
: The above list of components is not an AIRBUS Kit, the required parts
shall be ordered as necessary through the given channel.
NOTE
 (1)
: Modification of the TCAS computer must be done in accordance with
Honeywell Service Bulletin No. 940-0351-34-0005.
E. PARTS TO BE RE-IDENTIFIED BY OPERATOR
NOTE
: Parts are re-identified in accordance with the Honeywell Service Bulletin No.
940-0351-34-0005.
Reidentified part set REIDA01
ITEM
 NEW PART N˚
 KEYWORD
 ITEM
 OLD PART N˚
 SEE
NOTES
940-0351-005
 TCAS
 940-0351-001
 (1)
NOTE
 (1)
: Modification of the TCAS computer must be done in accordance with
Honeywell Service Bulletin No. 940-0351-34-0005.
F. TOOLING
(1) Tooling - Price and Availability
None
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 8
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 13

@A340
SERVICE BULLETIN
(2) Tools
To accomplish this Service Bulletin it is necessary to use the tools listed in the
subsequent referenced tasks:
- AMM Task 52-41-00-010-801
- AMM Task 34-43-34-000-801
- Honeywell Service Bulletin No. 940-0351-34-0005.
NOTE
: For TASK 344304-831-801 001 Option 1 - Modify the TCAS Computer ,
refer to AMM Task 52-41-00-010-801 and for TASK 344304-831-802
001 Option 2 - Replace the TCAS Computer , refer to AMM Task
34-43-34-000-801.
(3) Special Tools
None
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 9
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 14

@A340
SERVICE BULLETIN
This Page Intentionally Left Blank
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 10
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 15

@A340
SERVICE BULLETIN
3. ACCOMPLISHMENT INSTRUCTIONS
Task 344304-831-801-001 - Option 1 - Modify the TCAS Computer
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.
IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00.
NOTE
: The accomplishment instructions of this Service Bulletin include procedures given
in other documents or in other sections of the Service Bulletin. When the words
’refer to’ are used and the operator has a procedure accepted by the local authority
he belongs to, the accepted alternative procedure can be used. When the words ’in
accordance with’ are used then the given procedure must be followed.
NOTE
: The access and close-up instructions, not comprising return to service tests, in this
Service Bulletin do not constitute or affect the technical intent of the Service
Bulletin. Operators can therefore, as deemed necessary, omit or add access and/or
close-up steps to add flexibility to their maintenance operations as long as the
technical intent of the Service Bulletin is met within the set parameters.
NOTE
: Manual titles given in the accomplishment instructions are referred to by acronyms.
Refer to paragraph 1.J., References, for the definition of acronyms.
NOTE
: This Service Bulletin is classified mandatory or expected to be classified mandatory
by an Airworthiness Directive (AD). The paragraphs 3.C. and 3.D. in these
accomplishment instructions are Required for Compliance (RC) and must be done
to comply with the AD. Other paragraphs are recommended and may be deviated
from, done as part of other actions or done with accepted methods different from
those given in the Service Bulletin, as long as the RC paragraphs can be done and
the aircraft can be put back into a serviceable condition.
NOTE
: This Service Bulletin contains the instructions for the on-aircraft maintenance
necessary to ensure the continued airworthiness of the aircraft.
For any deviations to the instructions contained herein, contact AIRBUS for further
instructions and approval.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 11
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 16

@A340
SERVICE BULLETIN
Task Associated Data
Zone
120
Modified FIN
1SG
Access
Door
 811
Manpower
TOTAL MANHOURS
 1.50
ELAPSED TIME (HOURS)
 1.50
Additional manhours related to Vendor SB; refer to:
Honeywell Service Bulletin No. 940-0351-34-0005
A. GENERAL
(1) Subtask 344304-910-001-001 - Standard Practices
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-20-00, Page Block 001
06-31-53, Page Block 001
06-41-53, Page Block 001
Task 20-16-00-912-801
(a) For the identification of zones, refer to AMM 06-20-00, Page Block 001.
(b) For the Frame (FR) identification, refer to AMM 06-31-53, Page Block 001.
(c) For the identification of access panels, refer to AMM 06-41-53, Page Block 001.
(d) For circuit breaker safety practices, refer to AMM Task 20-16-00-912-801.
(2) Subtask 344304-839-001-001 - Administrative
Manpower Resources
Skills
 NON SPECIFIC
Write in the applicable aircraft records that you have done all the work given in this
Service Bulletin.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 12
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 17

@A340
SERVICE BULLETIN
B. PREPARATION
(1) Subtask 344304-941-001-001 - Job Set-up
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 12-34-24-860-802
Task 24-42-00-861-801
Task 52-41-00-010-801
NOTE
: The items given in this note shall be considered as the basic Aircraft
configuration before you start a maintenance task:
- Aircraft on the ground resting on landing gear (the ground safety
locks and the wheel chocks are in position on the landing gear)
- Engine shut down, thrust reversers closed and locked
- Aircraft in clean configuration
- Parking brake applied
- Aircraft electrical network de-energized
- Hydraulic system s depressurized
- Access to the cockpit and cabin is available
- All circuit breakers are in closed position
- All controls in NORM, AUTO or OFF position.
(a) Make sure that the aircraft is electrically grounded, refer to AMM Task
12-34-24-860-802.
(b) Put the access platform(s) in position.
(c) Open the access door 811, refer to AMM Task 52-41-00-010-801.
(d) Energize the Ground Service Network, refer to AMM Task 24-42-00-861-801.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 13
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 18

@A340
SERVICE BULLETIN
C. PROCEDURE
(1) Subtask 344304-470-001-001 - Modify the Traffic Collision Avoidance System
(TCAS) Computer by Vendor HONEYWEL L Service Bulletin No. 940-0351-34-0005
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Material necessary to do the job
Reidentified part set REIDA01
ITEM
 NEW PART N˚
 KEYWORD
 ITEM
 OLD PART N˚
 SEE
NOTES
940-0351-005
 TCAS
 940-0351-001
 (1)
NOTE
 (1)
: Modification of the TCAS computer must be done in accordance with
Honeywell Service Bulletin No. 940-0351-34-0005.
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-00-740-801
Task 45-10-00-860-804
Vendor Service Bulletin (VSB)
 Honeywell 940-0351-34-0005
(a) Do the BITE test of the Traffic Collision Avoidance System (TCAS), refer to AMM
Task 34-43-00-740-801.
(b) Do the LRU identification test
1
 Job Set-up
a
 Do the Procedure to get acce ss to the SYSTEM REPORT/TEST
NAV:RADIO NAV page, refer to AMM Task 45-10-00-860-804.
- Push the NEXT PAGE function key (two times) until the TCAS menu
page comes into view.
b
 Make sure that these circuit breakers are closed:
PANEL
 DESIGNATION
 FIN
 LOCATION
 SEE
NOTES
721VU
 TCAS
 4SG
 05 B
721VU
 PRINTER
 1TP
 02 D
2
 Procedure
NOTE
: The actions and the results of this procedure occur on the
MCDU used.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 14
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 19

@A340
SERVICE BULLETIN
ACTION
 RESULT
1. On the MCDU:
- Push the line key adjacent to the TCAS
indication.
- Push the line key adjacent to the LRU IDENT
indication.
On the MCDU:
- The TCAS page comes into view.
- The LRU IDENTIFICATION page comes into
view.
2. On the TCAS LRU IDENTIFICATION page:
- Make sure that the old PN of the TCAS is
940-0351-001
3. Print the TCAS LRU IDENTIFICATION page (if
the printer is not available, a visual check is
acceptable).
3
 Close-up
a
 Put the aircraft back to its initial configuration:
<1> On the MCDU, push the line key adjacent to the RETURN indication
until the CFDS menu page comes into view.
(c) Make sure that the aircraft is in ground configuration (Landing Gear down and
compressed).
(d) Make sure that these circuit breakers are closed:
PANEL
 DESIGNATION
 FIN
 LOCATION
 SEE
NOTES
742VU
 LGCIU 1
 1GA
 63 L
722VU
 LGCIU 2
 2GA
 38 U
 (1)
721VU
 L/G SAFETY VLV
 3GA
 12 S
NOTE
 (1)
: The location depends on the aircraft configuration.
(e) Do the uploading of the TCAS (1SG) and update TCAS part number
label and software label in accordance with Honeywell Service Bulletin No.
940-0351-34-0005.
During the accomplishment of the Honeywell Service Bulletin No.
940-0351-34-0005, it is necessary to remove or apply electrical power to the TCAS
as described in the following notes:
NOTE
 (1)
: To remove the electrical power from the TCAS, open safety/lock
and tag this circuit breaker:
PANEL
 DESIGNATION
 FIN
 LOCATION
 SEE
NOTES
721VU
 TCAS
 4SG
 05 B
NOTE
 (2)
: To apply the electrical power to the TCAS, remove the safety clip
and tag and close this circuit breaker:
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 15
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 20

@A340
SERVICE BULLETIN
PANEL
 DESIGNATION
 FIN
 LOCATION
 SEE
NOTES
721VU
 TCAS
 4SG
 05 B
FIN 1SG
1 TCAS Computer 940-0351-001
becomes:
FIN 1SG
1 TCAS Computer 940-0351-005
D. TEST
(1) Subtask 344304-740-001-001 - BITE Test
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-00-740-801
Task 45-10-00-860-804
(a) Do the BITE test of the Traffic Collision Avoidance System (TCAS), refer to AMM
Task 34-43-00-740-801.
(b) Do the LRU identification test
1
 Job Set-up
a
 Do the procedure to get access to the SYSTEM REPORT/TEST NAV:
RADIO NAV page on the MCDU, refer to AMM Task 45-10-00-860-804:
- Push the NEXT PAGE function key (two times) until the TCAS menu
page comes into view.
b
 Make sure that these circuit breakers are closed:
PANEL
 DESIGNATION
 FIN
 LOCATION
 SEE
NOTES
721VU
 TCAS
 4SG
 05 B
721VU
 PRINTER
 1TP
 02 D
2
 Procedure
NOTE
: The actions and the results of this procedure occur on the
MCDU used.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 16
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 21

@A340
SERVICE BULLETIN
ACTION
 RESULT
1. On the MCDU:
- Push the line key adjacent to the TCAS
indication.
- Push the line key adjacent to the LRU IDENT
indication.
On the MCDU:
- The TCAS page comes into view.
- The LRU IDENTIFICATION page comes into
view.
2. On the TCAS LRU IDENTIFICATION page:
- Make sure that the new PN of the TCAS is
940-0351-005.
3. Print the TCAS LRU IDENTIFICATION page (if
the printer is not available, a visual check is
acceptable).
3
 Close-up
a
 On the MCDU, push the line key adjacent to the RETURN indication until
the CFDS menu page comes into view.
E. CLOSE-UP
(1) Subtask 344304-942-001-001 - Close-up
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 52-41-00-410-801
(a) Make sure that the work areas are clean and clear of tools and other items of
equipment.
(b) Close access door 811, refer to AMM Task 52-41-00-410-801.
(c) Remove the access platform.
(d) Put the aircraft back to its initial configuration.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 17
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 22

@A340
SERVICE BULLETIN
This Page Intentionally Left Blank
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 18
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 23

@A340
SERVICE BULLETIN
Task 344304-831-802-001 - Option 2 - Replace the TCAS Computer
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.
IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00.
NOTE
: The accomplishment instructions of this Service Bulletin include procedures given
in other documents or in other sections of the Service Bulletin. When the words
’refer to’ are used and the operator has a procedure accepted by the local authority
he belongs to, the accepted alternative procedure can be used. When the words ’in
accordance with’ are used then the given procedure must be followed.
NOTE
: The access and close-up instructions, not comprising return to service tests, in this
Service Bulletin do not constitute or affect the technical intent of the Service
Bulletin. Operators can therefore, as deemed necessary, omit or add access and/or
close-up steps to add flexibility to their maintenance operations as long as the
technical intent of the Service Bulletin is met within the set parameters.
NOTE
: Manual titles given in the accomplishment instructions are referred to by acronyms.
Refer to paragraph 1.J., References, for the definition of acronyms.
NOTE
: This Service Bulletin is classified mandatory or expected to be classified mandatory
by an Airworthiness Directive (AD). The paragraphs 3.C. and 3.D. in these
accomplishment instructions are Required for Compliance (RC) and must be done
to comply with the AD. Other paragraphs are recommended and may be deviated
from, done as part of other actions or done with accepted methods different from
those given in the Service Bulletin, as long as the RC paragraphs can be done and
the aircraft can be put back into a serviceable condition.
NOTE
: This Service Bulletin contains the instructions for the on-aircraft maintenance
necessary to ensure the continued airworthiness of the aircraft.
For any deviations to the instructions contained herein, contact Airbus for further
instructions and approval.
NOTE
: Discarded parts must be managed at the operator’s discretion.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 19
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 24

@A340
SERVICE BULLETIN
Task Associated Data
Zone
120
Modified FIN
1SG
Access
Door
 811
Manpower
TOTAL MANHOURS
 2.00
ELAPSED TIME (HOURS)
 2.00
A. GENERAL
(1) Subtask 344304-910-002-001 - Standard Practices
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-20-00, Page Block 001
06-31-53, Page Block 001
06-41-53, Page Block 001
Task 20-16-00-912-801
(a) For the identification of zones, refer to AMM 06-20-00, Page Block 001.
(b) For the Frame (FR) identification, refer toAMM 06-31-53, Page Block 001.
(c) For the identification of access panels, refer toAMM 06-41-53, Page Block 001.
(d) For circuit breaker safety practices, refer toAMM Task 20-16-00-912-801.
(2) Subtask 344304-839-002-001 - 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 344304-941-002-001 - Job Set-up
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 20
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 25

@A340
SERVICE BULLETIN
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 12-34-24-860-802
Task 34-43-34-000-801
NOTE
: The items given in this note shall be considered as the basic Aircraft
configuration before you start a maintenance task:
- Aircraft on the ground resting on landing gear (the ground safety
locks and the wheel chocks are in position on the landing gear)
- Engine shut down, thrust reversers closed and locked
- Aircraft in clean configuration
- Parking brake applied
- Aircraft electrical network de-energized
- Hydraulic system s depressurized
- Access to the cockpit and cabin is available
- All circuit breakers are in closed position
- All controls in NORM, AUTO or OFF position.
(a) Make sure that the aircraft is electrically grounded, refer to AMM Task
12-34-24-860-802.
(b) Do the Job Set-up procedure as specified in the Removal of the Traffic Collision
Avoidance System (TCAS) Computer, refer to AMM Task 34-43-34-000-801.
C. PROCEDURE
(1) Subtask 344304-020-001-001 - Remove the Traffic Collision Avoidance System
(TCAS) Computer
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Manpower Resources
Manhours
 0.25
Minimum number of person
 1
Subtask elapsed time
 0.25
Skills
 NON SPECIFIC
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 21
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 26

@A340
SERVICE BULLETIN
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-34-000-801
(a) Do the Removal of the Traffic Collision Avoidance System (TCAS) Computer, refer
to AMM Task 34-43-34-000-801.
FIN 1SG
1 TCAS Computer 940-0351-001 Discard
(2) Subtask 344304-420-001-001 - Install the Traffic Collision Avoidance System
(TCAS) Computer
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Manpower Resources
Manhours
 0.25
Minimum number of person
 1
Subtask elapsed time
 0.25
Skills
 NON SPECIFIC
Material necessary to do the job
Equipment BFEA01
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 SEE
NOTES
940-0351-005
 1
 TCAS
NOTE
: The above list of components is not an AIRBUS Kit, the required parts
shall be ordered as necessary through the given channel.
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-34-400-801
(a) Do the Installation of the Traffic Collision Avoidance System (TCAS) Computer,
refer to AMM Task 34-43-34-400-801.
FIN 1SG
1 TCAS Computer 940-0351-005
D. TEST
(1) Subtask 344304-740-002-001 - BITE Test
Manpower Resources
Skills
 NON SPECIFIC
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 22
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 27

@A340
SERVICE BULLETIN
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-00-740-801
(a) Do the BITE test of the Traffic Collision Avoidance System (TCAS), refer to AMM
Task 34-43-00-740-801.
E. CLOSE-UP
(1) Subtask 344304-942-002-001 - Close-up
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Work location
 from Frame 18 to Frame 20
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 34-43-34-400-801
(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 Traffic Collision
Avoidance System (TCAS) Computer, refer to AMM Task 34-43-34-400-801.
(c) Put the aircraft back to its initial configuration.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 23
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 28

@A340
SERVICE BULLETIN
Service Bulletin REPORTING
TITLE: NAVIGATION - TCAS - INSTA LL NEW TCAS SOFTWARE TO CORRECT
UNJUSTIFIED RESOLUTION ADVISORY
MODIFICATION No.: 206608S34248
SB Reporting status
This Service Bulletin will only be incorporated into affected customized Maintenance and Flight
Operations Products if it is duly reported to Airbus.
General information
The SB Reporting policy is published in ISI 00.00.00135. This document provides information regarding:
the SB Reporting means and benefits, the update of customized Maintenance Products and customized
Flight Operations Products.
If this Service Bulletin has an operational impact, refer to paragraph "Flight Operations Products" for
further information on the update of affected Flight Operations Products.
SB Reporting procedure
Standard practice to report SB is to use the online reporting application on AirbusWorld.
Refer to ISI 00.00.00179:
- For complete information on reporting means to Airbus. Question 2 "What are the standard
practices for SB reporting?"
- If this SB requires previous or simultaneous accomplishment of other SBs, Question 3 "What about
the reporting of prerequisite Service Bulletin?"
NOTE:
 ISI 00.00.00179 covers all the frequently asked questions about SB Reporting. It is revised on a
regular basis.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 29

@A340
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
F A X:( 3 3 )56 19 34 25 1
Or via your Resident Customer Support Office.
DATE: Apr 19/17 SERVICE BULLETIN No.: A340-34-4304
REVISION No.: 00 - Apr 19/17 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.