# Airbus Service Bulletin A320-28-1239: Revision 1

- Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2019-0863, the docket of AD 2020-05-17. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Airbus Service Bulletin A320-28-1239](https://openairdocs.org/service-documents/airbus/a320-28-1239.md)
- Title as filed: A320-28-1239 R01
- Pages: 33
- PDF: https://openairdocs.org/files/sha256/28/7c/287c9fd5ebce05f5077d2f577150300eff8a4a9114657f3ee2b6d4b3f84d171b
- Page: https://openairdocs.org/service-documents/airbus/a320-28-1239/file/287c9fd5ebce

## Text

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### Page 1

@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
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: 28
TITLE: FUEL - INDICATING - INTRODUCE COMMON FUEL LEVEL SENSOR
SUPPORT BRACKET
MODIFICATION No.: 158133J4169
NOTE
: This modification is related to an airworthiness issue which has been re-classified
and confirmed by EASA as minor in acco rdance with EU Part 21.A.91. As
such, this is handled by AIRBUS under its Design Organisation Approval No.
EASA.21J.031.
This page transmits Revision No.01 of Service Bulletin No.A320-28-1239
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:
- Update the effectivity
- Update the commercial policy
- Update KITB01 and KITB02 to give the corre ct left hand (LH) and right hand (RH) Bracket Assy-
Support part numbers
- Correct the old and new Bracket Assy-Support par t number associations for both LH and RH parts
- Remove the Job Set-up and Close-up work steps relating to the transfer of fuel from/to the surge
tanks.
CHANGES
The main changes of this revision are:
- Aircraft added to the effectivity paragraph
- Effectivity by Operator updated
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 2

@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
- Paragraph 1.L. INT ERCHANGEABILITY/MIXABILITY updated
- Commercial policy updated
- KITB01 updated to give correct LH Bracket Assy-Support part number
- KITB02 updated to give correct RH Bracket Assy-Support part number
- Job Set-up and Close-up updated to remove work steps relating to the transfer of fuel from/to the
surge tanks
- Service Bulletin Information Transmission (SBIT) 16-0081 added to the REFERENCES /
REPERCUSSIONS table.
SUMMARY
REASON/DESCRIPTION/OPERATIONAL
CONSEQUENCES
REASON UPDATED
 R
MATERIAL PRICE INFORMATION
 MATERIAL PRICE INFORMATION TABLE
UPDATED
R
EFFECTIVITY
 OPERATOR LIST UPDATED
 R
REFERENCES / REPERCUSSIONS
 REFERENCES/REPERCUSSIONS TABLE
UPDATED
R
PLANNING INFORMATION
EFFECTIVITY
 EFFECTIVITY RELATED INFORMATION
UPDATED
R
Configuration definition
CONF 001
 CONFIGURATION DEFINITION UPDATED
 R
Material Effectivity
 MATERIAL EFFECTIVITY UPDATED
MATERIAL SET UPDATED
R
REASON
Advantages
 ADVANTAGES UPDATED
 R
REFERENCES
 REFERENCED DOCUMENTATION UPDATED
 R
INTERCHANGEABILITY/MIXABILITY
 INTERCHANGEABILITY/MIXABILITY UPDATED
 R
MATERIAL INFORMATION
MATERIAL - PRICE AND AVAILABILITY
Procurement Addresses
 PROCUREMENT ADDRESSES UPDATED
MATERIAL SET UPDATED
R
Price and Availability
 PRICE AND AVAILABILITY UPDATED
MATERIAL AVAILABILITY UPDATED
MATERIAL SET UPDATED
MATERIAL PRICE UPDATED
R
LIST OF COMPONENTS
Kit 281239B01R02
 PART MATERIAL SET UPDATED
MATERIAL SET LABEL UPDATED
PART NUMBER UPDATED
R
Kit 281239B02R02
 PART MATERIAL SET UPDATED
MATERIAL SET LABEL UPDATED
PART NUMBER UPDATED
R
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 2
7
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### Page 3

@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
ACCOMPLISHMENT INSTRUCTIONS
TASK 281239- 831-895-001-Modification
 TASK SOLUTION UPDATED
NOTE UPDATED
CAUTION UPDATED
R
Subtask 281239-941-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
R
Subtask 281239-960-401-001
 SUBTASK SOLUTION UPDATED
PART NUMBER UPDATED
PART NUMBER DESCRIPTION UPDATED
MATERIAL LIST UPDATED
R
Subtask 281239-960-402-001
 SUBTASK SOLUTION UPDATED
PART NUMBER UPDATED
PART NUMBER DESCRIPTION UPDATED
MATERIAL LIST UPDATED
R
Subtask 281239-942-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
PANEL UPDATED
REFERENCES UPDATED
R
FILING 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 22/16
REVISION No. : 01 - Sep 15/17
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 3
7
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@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
This Page Intentionally Left Blank
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 4
7
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### Page 5

@A318/A319/A320/A321
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: 28
TITLE: FUEL - INDICATING - INTRODUCE COMMON FUEL LEVEL SENSOR
SUPPORT BRACKET
**CONF ALL
MODIFICATIONS
MODIFICATION CLASSIFICATION
MAJOR
 None
MINOR
 158133J4169
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.
NOTE
: This modification is related to an airworthiness issue which has been re-classified and
confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this is
handled by AIRBUS under its D esign Organisation Approval No. EASA.21J.031.
REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES
Embodiment of production modification No. 160001J3282 has resulted in insufficient clearance between
the fuel sensor cover mounted on Rib 24 and the crown of stringer (STGR) 15 on both the left hand
(LH) and right hand (RH) wings.
This Service Bulletin introduces Modification Number (Mod No.) 158133J4169 which replaces the
existing fuel sensor support brackets with new, offset fuel sensor support brackets as are currently
installed on the A321 variant.
Accomplishment of this Service Bulletin will ensure that there is sufficient clearance between the fuel
sensor cover and the crown of STGR 15.
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
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
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### Page 6

@A318/A319/A320/A321
SERVICE BULLETIN
SUMMARY
EVALUATION TABLE
COST SAVING
 NO
 ETOPS AFFECTED
 NO
STRUCTURAL LIFE EXTN
 NO
 VENDOR SB INVOLVED
 NO
DE-FUELLING/VENTILATION
 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
Kit
 281239B01R02
 1
 270.00
 Support bracket assy LH
Kit
 281239B02R02
 1
 270.00
 Support bracket assy RH
TOTAL
 540.00
EFFECTIVITY
This Service Bulletin is applicable to this (these) operator(s) :
AIB AXM CSN DLH FFT GOW IGO KZR LAN
 NKS PGT QTR TAM
VIV VOI
CONCURRENT REQUIREMENTS
None
REFERENCES / REPERCUSSIONS
TFU
 None
OEB
 None
AOT
 None
SIL
 None
ISI
 None
LINE MAINTENANCE AFFECTED
 No
LIFE LIMIT
 None
OTHER
 Service Bulletin Information Transmission (SBIT) 16-0081
NATURE OF THE WORK
AIRCRAFT
 YES
EQUIPMENT
 NO
HARD
 NO
SOFT
 NO
OBRM
 NO
MANPOWER
Task 281239-831-895-001: Modification
TOTAL MANHOURS
 7.00
ELAPSED TIME (HOURS)
 4.00
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 2
7
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### Page 7

@A318/A319/A320/A321
SERVICE BULLETIN
SUMMARY
APPENDICES
Appendix 01 - Manpower Gantt Chart
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 3
7
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### Page 8

@A318/A319/A320/A321
SERVICE BULLETIN
SUMMARY
**CONF ALL
RIB24
LH SHOWN
RH SYMMETRICAL
550CB (650CB)
NOTE:
AREA OF MODIFICATION
B
RIB24
FWD
STGR16STGR15
A
VIEW LOOKING 
INBOARD ON RIB24
B
A
N_SB_281239_7_SAAA_01_00
Figure A-USAAA - Sheet 01
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 4
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 9

@A318/A319/A320/A321
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: 28
TITLE: FUEL - INDICATING - INTRODUCE COMMON FUEL LEVEL SENSOR
SUPPORT BRACKET
MODIFICATION No.: 158133J4169
NOTE
: This modification is related to an airworthiness issue which has been re-classified
and confirmed by EASA as minor in acco rdance with EU Part 21.A.91. As
such, this is handled by AIRBUS under its Design Organisation Approval No.
EASA.21J.031.
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 with Manufacturer
Serial Number (MSN) 6642, 7129, 7175-7181, 7186-7209, 7249 and
subsequent.
(1) Models
320-251N 320-271N
(2) Effectivity by MSN
6101 6286 6620 6720 6744 6772 6799 6801 6819 6829 6833 6849 6860 6864 6868
6904 6907 6914 6920 6946 6952 6967 6975 7001 7011 7033 7047 7051 7053 7060
7074 7078 7083 7094 7102-7103 7107 7124 7126 7140-7141 7147 7150 7162 7172
7185 7236
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
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### Page 10

@A318/A319/A320/A321
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
AIB
 6101 6620
AXM
 7150 7236
CSN
 6975
DLH
 6801 6864 6920 7078 7103
FFT
 7141
GOW
 7047 7074 7172
IGO
 6720 6744 6772
 6799 6819 6829
 6849 6860 6868 6904
 6914 6946
6952 6967 7001 7033 7053
KZR
 7124
LAN
 6286
NKS
 6833 6907 7011 7094
PGT
 7140 7147 7162 7185
QTR
 7083
TAM
 7126
VIV
 7060 7107
VOI
 7051 7102
(4) Configuration by MSN
MSN
 CONFIGURATION
6101 6286 6620 6720 6744 6772 6799 6801 6819 6829 6833
6849 6860 6864 6868 6904 6907 6914 6920 6946 6952 6967
6975 7001 7011 7033 7047 7051 7053 7060 7074 7078 7083
7094 7102 7103 7107 7124 7126 7140 7141 7147 7150 7162
7172 7185 7236
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
Kit
 281239B01R02
 1
Kit
 281239B02R02
 1
Consumable CMLB01
 1
B. CONCURRENT REQUIREMENTS
None
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 2
7
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### Page 11

@A318/A319/A320/A321
SERVICE BULLETIN
C. REASON
(1) History
Embodiment of production modification No. 160001J3282 has resulted in insufficient
clearance between the fuel sensor cover mounted on Rib 24 and the crown of stringer
(STGR) 15 on both the left hand (LH) and right hand (RH) wings.
(2) Objective/Action
This Service Bulletin introduces Modification Number (Mod No.) 158133J4169 which
replaces the existing fuel sensor support brackets with new, offset fuel sensor support
brackets as are currently installed on the A321 variant.
(3) Advantages
Accomplishment of this Service Bulletin will ensure that there is sufficient clearance
between the fuel sensor cover and the crown of STGR 15.
(4) Operational/Maintenance Consequences
None
D. DESCRIPTION
To accomplish this Service Bulletin it is necessary to :
Task 281239-831-895-001: Modification
(1) Replace the LH Fuel Level Sensor Support Bracket
(2) Replace the RH Fuel Level Sensor Support Bracket
E. COMPLIANCE
(1) Classification
MANDATORY: Service Bulletin must be accomplished.
(2) Accomplishment Timescale
Accomplishment of this Service Bulletin must be done 12 years after first entry into
service.
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 thresholds
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.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 3
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 12

@A318/A319/A320/A321
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 281239-831-895-001: Modification
Get Access
 2.00
On Aircraft
Replace the LH Fuel Level Sensor Support Bracket
 1.00
Replace the RH Fuel Level Sensor Support Bracket
 1.00
Tests
 1.00
Close-Up
 2.00
TOTAL MANHOURS
 7.00
ELAPSED TIME (HOURS)
 4.00
NOTE
: For an explanation of the man-hours and elapsed time, refer to the Gantt
Chart, Fig. A-UAAAA
 given in Appendix 01 - Manpower Gantt Chart .
H. WEIGHT AND BALANCE
Not Changed
I. ELECTRICAL LOAD DATA
Not Changed
J. REFERENCES
Aircraft Maintenance Manual (AMM)
 06-20-00 06-41-57 12-34-24
20-21-11 20-28-00 28-10-00
28-12-45 28-25-00 28-46-00
28-46-16
Consumable Material List (CML)
ATA Common Support Data Dictionary (CSDD),
Chapter 2
Elec. Std. Practices Manual (ESPM)
 20-51-20 20-55-00
Standards Manual (SM)
K. PUBLICATION AFFECTED
Illustrated Parts Catalog (IPC)
 28-46-85
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 4
7
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### Page 13

@A318/A319/A320/A321
SERVICE BULLETIN
L. INTERCHANGEABILITY/MIXABILITY
NOTE
: The interchangeability/mixability possibilities are for new or modified parts
introduced by the accomplishment of this Service Bulletin.
DESCRIPTION
 OLD PART N˚
 NEW PART N˚
 INT
 MIXABILITY
 SEE
NOTES
Bracket Assy-Support
 D2845002400000
 D2845024000000
 01
 Not
Applicable
(1)
Bracket Assy-Support
 D2845002900000
 D2845024100000
 01
 Not
Applicable
(1)
NOTE
: For definitions of interchangeability codes in column INT., refer to ATA
Common Support Data Dictionary (CSDD), Chapter 2.
NOTE
 (1)
: One way Interchangeable with conditions:
- the Old Part Number may be used as a replacement where the Old Part
Number was installed
- the New Part Number is an acceptable replacement for the New Part
Number without conditions
- the New Part Number is an acceptable replacement for the Old Part
Number under specific conditions only:
. the condition is:
It is recommended that the Old Part Number is always replaced
with the New Part Number. Spares impacted, General Code J, ICY
Number, D20-81
- if the Old Part Number is fitted, a gap check must be carried out to make
sure that there is a minimum clearance of 0.5 mm (0.020 in.) between the
bracket assembly and the rib.
M. SPARES
None
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 5
7
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This Page Intentionally Left Blank
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 6
7
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@A318/A319/A320/A321
SERVICE BULLETIN
2. MATERIAL INFORMATION
**CONF ALL
A. MATERIAL - PRICE AND AVAILABILITY
(1) Procurement Addresses
Customers with aircraft shown in the effectivity of this Service Bulletin should send a
purchase order to AIRBUS. Quote the number of this Service Bulletin. The address is:
Kit
 281239B01R02
Kit
 281239B02R02
AIRBUS Material, Logistics and Suppliers
ATP II B
Hein-Sass-Weg 24
21129 HAMBURG
GERMANY
For ordering by internet:
http://spares.airbus.com
For ordering by E-mail: airbus.kit@airbus.com
Telephone Hotline: +49 40 743 51660
(2) Price and Availability
Kit
 281239B01R02
Cost
 270.00
 USD
Availability
 180 calendar days from receipt of order
The availability given above is the standard lead time from the date of your purchase
order. If items are required before this time, please include a retrofit planning schedule
with your order so that we can try to comply with your requirements.
The sales terms (costs and availability) are estimated in relation to economic conditions.
The latest valid price and lead time for ordering purposes shall be obtained through the
AIRBUS Spares portal or through a request for quotation to airbus.kit@airbus.com.
Kit
 281239B02R02
Cost
 270.00
 USD
Availability
 180 calendar days from receipt of order
The availability given above is the standard lead time from the date of your purchase
order. If items are required before this time, please include a retrofit planning schedule
with your order so that we can try to comply with your requirements.
The sales terms (costs and availability) are estimated in relation to economic conditions.
The latest valid price and lead time for ordering purposes shall be obtained through the
AIRBUS Spares portal or through a request for quotation to airbus.kit@airbus.com.
B. INDUSTRY SUPPORT INFORMATION
AIRBUS will not provide industry support for accomplishment of this Service Bulletin.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 7
7
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### Page 16

@A318/A319/A320/A321
SERVICE BULLETIN
C. LIST OF COMPONENTS
Kit 281239B01R02
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 ITEM
 OLD PART N˚
 INT
 SEE
NOTES
5
 D2845024000000
 1
 SUPPORT
 (5)
 D2845002400000
 01
8
 NSA5474-4K7
 1
 NUT
 (8)
 NSA5474-4K7
10
 NSA5474-3K7
 1
 NUT
 (10)
 NSA5474-3K7
NOTE
: For definitions of interchangeability codes in column INT., refer to ATA
Common Support Data Dictionary (CSDD), Chapter 2.
NOTE
: If you find part numbers of hardware components in the related kit(s) which
you cannot identify in the LIST OF COMPONENTS of this Service Bulletin,
refer to Standards Manual (SM). The SM will give you the correct part number
to part number relationship.
Kit 281239B02R02
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 ITEM
 OLD PART N˚
 INT
 SEE
NOTES
6
 D2845024100000
 1
 SUPPORT
 (6)
 D2845002900000
 01
8
 NSA5474-4K7
 1
 NUT
 (8)
 NSA5474-4K7
10
 NSA5474-3K7
 1
 NUT
 (10)
 NSA5474-3K7
NOTE
: For definitions of interchangeability codes in column INT., refer to ATA
Common Support Data Dictionary (CSDD), Chapter 2.
NOTE
: If you find part numbers of hardware components in the related kit(s) which
you cannot identify in the LIST OF COMPONENTS of this Service Bulletin,
refer to Standards Manual (SM). The SM will give you the correct part number
to part number relationship.
D. LIST OF MATERIALS - OPERATOR SUPPLIED
(1) Consumable Materials
Consumable CMLB01
ITEM
 DESCRIPTION
 REFERENCE TO CML
MAT. No.
QTY PER A/C
 SEE
NOTES
Polysulfide Sealant-Fuel Tank
Interfay
06ABC1
 As required
Adhesion Promoter-For Polysulfide
Sealant
06PAG1
 As required
(2) Components
None
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 8
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SERVICE BULLETIN
(3) Equipment
None
E. PARTS TO BE RE-IDENTIFIED BY OPERATOR
None
F. TOOLING
None
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 9
7
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This Page Intentionally Left Blank
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 10
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SERVICE BULLETIN
3. ACCOMPLISHMENT INSTRUCTIONS
Task 281239-831-895-001 - Modification
WARNING
: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS
INCLUDED IN THE REFERENCED PROCEDURES.
WARNING
: THIS PROCEDURE USES A FUEL SYSTEM ITEM THAT IS IN A CATEGORY
KNOWN AS A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION
(CDCCL). CDCCL IDENTIFIES AN ITEM THAT CAN BE THE SOURCE OF A
POSSIBLE FUEL TANK IGNITION. YOU MUST KEEP ALL CDCCL ITEMS IN
THE APPROVED CONFIGURATION. DAMAGE, WEAR OR CHANGES TO A
CDCCL ITEM CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION.
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
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 11
7
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SERVICE BULLETIN
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.
Task Associated Data
Zone
550 650
Modified FIN
28QJ1 28QJ2
Access
Panel
 550CB 650CB
Manpower
TOTAL MANHOURS
 7.00
ELAPSED TIME (HOURS)
 4.00
A. GENERAL
(1) Subtask 281239-910-401-001 - Standard Practices
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-20-00, Page Block 001
06-41-57, Page Block 001
Task 20-21-11-911-001
Task 20-28-00-912-002
Task 28-10-00-910-001
Consumable Material List (CML)
Elec. Std. Practices Manual (ESPM)
 20-51-20
(a) For the specification of materials (Mat. No.) given in this Service Bulletin, refer to
the Consumable Material List (CML).
(b) For the identification of zones, refer to AMM 06-20-00, Page Block 001.
(c) For the identification of access panels, refer to AMM 06-41-57, Page Block 001.
(d) Put all the retained hardware in identified plastic bags and attach the bags to the
related unit.
(e) To torque tighten the standard threaded fasteners, refer to AMM Task
20-21-11-911-001.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 12
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(f) For the electrical bonding, re fer to ESPM 20-51-20 and AMM Task
20-28-00-912-002.
(g) For fuel safety procedures when you work in a fuel tank, refer to AMM Task
28-10-00-910-001.
(2) Subtask 281239-839-401-001 - 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 281239-941-401-001 - Job Set-up
Work Zones and Access Panels
Zone
 Access/Work location
550
 Access
 Panel 550CB
650
 Access
 Panel 650CB
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 12-34-24-869-002
Task 28-10-00-910-002
Task 28-12-45-000-001
Task 28-25-00-650-003
Task 28-46-16-000-001
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
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 13
7
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- All controls in NORM, AUTO or OFF position.
(a) Make sure that the aircraft is electrically grounded, refer to AMM Task
12-34-24-869-002.
(b) Do the job set-up procedures as specified in the Removal of the Overflow Sensor,
refer to AMM Task 28-46-16-000-001.
(c) Drain the fuel from the LH and RH Wing Surge Tanks, refer to AMM Task
28-25-00-650-003.
(d) Remove access panels 550CB and 650CB, refer to AMM Task 28-12-45-000-001.
(e) Vent the LH and RH Wing Surge Tanks, refer to AMM Task 28-10-00-910-002.
C. PROCEDURE
(1) Subtask 281239-960-401- 001 - Replace the LH Fuel Level Sensor Support Bracket
Work Zones and Access Panels
Zone
 Access/Work location
550
 Access
 Panel 550CB
Work location
 Rib 24 LH
from Stringer 15 to Stringer 16
Manpower Resources
Manhours
 1.00
Minimum number of person
 1
Subtask elapsed time
 1.00
Skills
 AIRFRAME
Material necessary to do the job
Kit 281239B01R02
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 SEE
NOTES
5
 D2845024000000
 1
 SUPPORT
8
 NSA5474-4K7
 1
 NUT
10
 NSA5474-3K7
 1
 NUT
Consumable CMLB01
ITEM
 DESCRIPTION
 REFERENCE TO
CML MAT. No.
QTY PER A/C
 SEE
NOTES
Polysulfide Sealant-Fuel
Tank Interfay
06ABC1
 As required
Adhesion Promoter-For
Polysulfide Sealant
06PAG1
 As required
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 14
7
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References
Aircraft Maintenance Manual (AMM)
 Task 20-28-00-912-002
Task 28-46-16-000-001
Task 28-46-16-400-001
Elec. Std. Practices Manual (ESPM)
 20-51-20
Fig. A-UBAAA
Replace the LH and RH Fuel Level
Sensor Support Brackets
Sheet 01
Sheet 02
(a) At Rib 24 LH between STGR 15 and STGR 16, refer to AMM Task
28-46-16-000-001 and Fig. A-UBAAA Sheet 01
 , remove:
1 Bolt NAS1304-4 Item (1) Retain
1 Washer DHS783-6-20 Item (2) Retain
1 Bolt NAS1303-4 Item (11) Retain
1 Washer DHS783-5-20 Item (12) Retain
1 Shield D2845011320000 Item (13) Retain
FIN 28QJ1
1 Sensor - Overflow EQ0028QJ1 Item (3) Retain
NOTE
: Do not electrically disconnect the Overflow Sensor 28QJ1.
You must support the Overflow Sensor, it must not hang freely.
1 Bolt-Protruding Head ASNA2027BV4-3 Item (7) Retain
1 Nut NSA5474-4K7 Item (8) Discard
1 Bolt-Protruding Head ASNA2027BV3-3 Item (9) Retain
1 Nut NSA5474-3K7 Item (10) Discard
1 Bracket Assy- Support D2845002400000 Ite m (5) Discard
(b) At Rib 24 LH between STGR 15 and STGR 16, refer to AMM Task
28-46-16-400-001 and Fig. A-UBAAA Sheet 02
 , apply:
Polysulfide Sealant-
Fuel Tank Interfay
06ABC1 As required
to the contact surfaces of the Bracket - Support Assy LH, Item 5, and to the shank
of the Bolts, (7) and (9). and install:
1 Bracket A ssy-Support
LH
D2845024000000
 Item 5
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 15
7
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1 Bolt-Protruding Head ASNA2027BV3-3 Item (9) Retained at
removal
1 Nut NSA5474-3K7 Item 10
1 Bolt-Protruding Head ASNA2027BV4-3 Item (7) Retained at
removal
1 Nut NSA5474-4K7 Item 8
1 Shield D2845011320000 Item (13) Retained at
removal
FIN 28QJ1
1 Sensor - Overflow EQ0028QJ1 Item (3) Retained at
removal
1 Washer DHS783-6-20 Item (2) Retained at
removal
1 Bolt NAS1304-4 Item (1) Retained at
removal
1 Washer DHS783-5-20 Item (12) Retained at
removal
1 Bolt NAS1303-4 Item (11) Retained at
removal
(c) Electrically bond where shown, refer to Fig. A-UBAAA Sheet 02
 , ESPM 20-51-20
and AMM Task 20-28-00-912-002.
(d) Apply:
Adhesion Promoter-
For Polysulfide
Sealant
06PAG1 As required
and
Polysulfide Sealant-
Fuel Tank Interfay
06ABC1 As required
to the:
- heads and tails of the Bolts, Items (1), (7), (9) and (11)
- the Nuts, Items 8 and 10.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 16
7
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(2) Subtask 281239-960-402- 001 - Replace the RH Fuel Level Sensor Support Bracket
Work Zones and Access Panels
Zone
 Access/Work location
650
 Access
 Panel 650CB
Work location
 Rib 24 RH
from Stringer 15 to Stringer 16
Manpower Resources
Manhours
 1.00
Minimum number of person
 1
Subtask elapsed time
 1.00
Skills
 AIRFRAME
Material necessary to do the job
Kit 281239B02R02
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 SEE
NOTES
6
 D2845024100000
 1
 SUPPORT
8
 NSA5474-4K7
 1
 NUT
10
 NSA5474-3K7
 1
 NUT
Consumable CMLB01
ITEM
 DESCRIPTION
 REFERENCE TO
CML MAT. No.
QTY PER A/C
 SEE
NOTES
Polysulfide Sealant-Fuel
Tank Interfay
06ABC1
 As required
Adhesion Promoter-For
Polysulfide Sealant
06PAG1
 As required
References
Aircraft Maintenance Manual (AMM)
 Task 20-28-00-912-002
Task 28-46-16-000-001
Task 28-46-16-400-001
Elec. Std. Practices Manual (ESPM)
 20-51-20
Fig. A-UBAAA
Replace the LH and RH Fuel Level
Sensor Support Brackets
Sheet 01
Sheet 02
(a) At Rib 24 RH between STGR 15 and STGR 16, refer to AMM Task
28-46-16-000-001 and Fig. A-UBAAA Sheet 01
 , remove:
1 Bolt NAS1304-4 Item (1) Retain
1 Washer DHS783-6-20 Item (2) Retain
1 Bolt NAS1303-4 Item (11) Retain
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 17
7
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SERVICE BULLETIN
1 Washer DHS783-5-20 Item (12) Retain
FIN 28QJ2
1 Sensor - Overflow EQ0028QJ2 Item (4) Retain
NOTE
: Do not electrically disconnect the Overflow Sensor 28QJ2.
You must support the Overflow Sensor, it must not hang freely.
1 Shield D2845011320000 Item (13) Retain
1 Bolt-Protruding Head ASNA2027BV4-3 Item (7) Retain
1 Nut NSA5474-4K7 Item (8) Discard
1 Bolt-Protruding Head ASNA2027BV3-3 Item (9) Retain
1 Nut NSA5474-3K7 Item (10) Discard
1 Bracket Assy- Support D2845002900000 Ite m (6) Discard
(b) At Rib 24 RH between STGR 15 and STGR 16, refer to AMM Task
28-46-16-400-001 and Fig. A-UBAAA Sheet 02
 , apply:
Polysulfide Sealant-
Fuel Tank Interfay
06ABC1 As required
to the contact surfaces of the Bracket - Support Assy RH, Item 6, and to the shank
of the Bolts, (7) and (9). and install:
1 Bracket A ssy-Support
RH
D2845024100000
 Item 6
1 Bolt-Protruding Head ASNA2027BV3-3 Item (9) Retained at
removal
1 Nut NSA5474-3K7 Item 10
1 Bolt-Protruding Head ASNA2027BV4-3 Item (7) Retained at
removal
1 Nut NSA5474-4K7 Item 8
1 Shield D2845011320000 Item (13) Retained at
removal
FIN 28QJ2
1 Sensor - Overflow EQ0028QJ2 Item (4) Retained at
removal
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 18
7
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SERVICE BULLETIN
1 Washer DHS783-6-20 Item (2) Retained at
removal
1 Bolt NAS1304-4 Item (1) Retained at
removal
1 Washer DHS783-5-20 Item (12) Retained at
removal
1 Bolt NAS1303-4 Item (11) Retained at
removal
(c) Electrically bond where shown, refer to Fig. A-UBAAA Sheet 02
 , ESPM 20-51-20
and AMM Task 20-28-00-912-002.
(d) Apply:
Adhesion Promoter-
For Polysulfide
Sealant
06PAG1 As required
and
Polysulfide Sealant-
Fuel Tank Interfay
06ABC1 As required
to the:
- heads and tails of the Bolts, Items (1), (7), (9) and (11)
- the Nuts, Items 8 and 10.
D. TEST
NOTE
: The listed subtasks are not in sequence with the work steps. The operator
can change the sequence.
(1) Subtask 281239-740-401-001 - BITE Test of the Overflow Sensors
Manpower Resources
Skills
 AIRFRAME
References
Aircraft Maintenance Manual (AMM)
 Task 28-46-00-740-001
(a) Do the BITE test of the Overflow Sensors 28QJ1 and 28QJ2, refer to AMM Task
28-46-00-740-001.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 19
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SERVICE BULLETIN
E. CLOSE-UP
(1) Subtask 281239-942-401-001 - Close-up
Work Zones and Access Panels
Zone
 Access/Work location
550
 Access
 Panel 550CB
650
 Access
 Panel 650CB
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 28-12-45-400-002
Task 28-46-16-400-001
(a) Make sure that the work areas are clean and clear of tools and other items of
equipment.
(b) Install access panels 550CB and 650CB, refer to AMM Task 28-12-45-400-002.
(c) Do the close-up procedures as specified in the Installation of the Overflow Sensor,
refer to AMM Task 28-46-16-400-001.
(d) Do a check for leaks at access panels 550CB and 650CB, no leaks are permitted.
(e) Put the aircraft back to its initial configuration.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 20
7
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SERVICE BULLETIN
**CONF ALL
(7)
(9)
(10)
(8)
RIB24
B
(11)
(12)
(1)
(2) (13)
(5)
(6)
LH
RH
LH SHOWN
RH SYMMETRICAL
550CB (650CB)
RIB24
A C
(3) LH
RH(4)
28QJ1
28QJ2
FWD
STGR16STGR15
A
BEFORE
VIEW LOOKING 
INBOARD ON RIB24
B
N_SB_281239_7_BAAA_01_01
Figure A-UBAAA - Sheet 01
Replace the LH and RH Fuel Level Sensor Support Brackets
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 21
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**CONF ALL
D
AFTER
ASSEMBLE WITH MAT. NO. 06ABC1.
01
NOTE:
02 TORQUE TIGHTEN TO 2.25 − 2.8 Nm (19.91 − 24.78 lbf. in)
03 TORQUE TIGHTEN TO 4.5 − 5.6 Nm (39.83 − 49.56 lbf. in)
04
(11)
(12)
(1) (2) (13)
(7)
(9)
5
6
LH
RH
10
8
04 05
01 03
01 02 04 05
ALL CADMIUM PLATED BOLT HEADS AND TAILS AND STEEL NUTS
NOT IN THE TANK BOUNDARIES BUT INSIDE THE TANK ARE TO BE
OVERCOAT SEALED WITH MAT. NOS 06PAG1 AND 06ABC1.
ELECTRICALLY BOND AND TEST05
RIB24
STGR16STGR15
FWD
VIEW LOOKING 
INBOARD ON RIB24
C
D
(3) LH
RH(4)
28QJ1
28QJ2
01
01
01
01
N_SB_281239_7_BAAA_02_02
Figure A-UBAAA - Sheet 02
Replace the LH and RH Fuel Level Sensor Support Brackets
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 22
7
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Appendix 01 - Manpower Gantt Chart
**CONF ALL
ELAPSED TIME ASSUMPTION SERVICE BULLETIN No A320−28−1239
GET ACCESS
MH ET/S
TOTAL MANHOURS
SB ELAPSED TIME
7.00
4.00
STEPS
2.00 1.00
0
CLOSE−UP
MH
ET/S:
PER
MANHOURS
ELAPSED TIME PER STEP
NUMBER OF PERSONS
01
02
THIS CHART IS ONLY A PROPOSAL.
OPERATORS MAY DETERMINE THAT ANOTHER WAY
TO DO THE WORK IS MORE SUITABLE FOR THEM.
01
02
NOTE:
PER
2
:
:
SB ELAPSED TIME
(HOURS)
4
IF A VSB IS INVOLVED, THE ASSOCIATED MANHOURS
ARE NOT REFLECTED IN THIS GANTT CHART.
REPLACE THE LH FUEL LEVEL 1.00 1.00 1
TESTS
SENSOR SUPPORT BRACKET
REPLACE THE RH FUEL LEVEL
SENSOR SUPPORT BRACKET
1.00 1.00 1
1.00 1.00 1
2.00 1.002
321
N_SB_281239_7_AAAA_01_01
Figure A-UAAAA - Sheet 01
Appendix 01 - Manpower Gantt Chart
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
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Service Bulletin REPORTING
TITLE: FUEL - INDICATING - INTRODUCE COMMON FUEL LEVEL SENSOR
SUPPORT BRACKET
MODIFICATION No.: 158133J4169
NOTE
: This modification is related to an airworthiness issue which has been re-classified
and confirmed by EASA as minor in acco rdance with EU Part 21.A.91. As
such, this is handled by AIRBUS under its Design Organisation Approval No.
EASA.21J.031.
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: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
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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
F A X:( 3 3 )56 19 34 25 1
Or via your Resident Customer Support Office.
DATE: Nov 22/16 SERVICE BULLETIN No.: A320-28-1239
REVISION No.: 01 - Sep 15/17 Page: 1
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

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