# Airbus Service Bulletin A320-28-1242

Copy: Revision 01 ("A320-28-1242 R01"), 32 pages: PDF https://openairdocs.org/files/sha256/d4/ff/d4ffa83cb26e2c00e904a91d10cdde295309334ca635a32a7bb74aaba3d42ddf; text https://openairdocs.org/service-documents/airbus/a320-28-1242/file/d4ffa83cb26e.md. Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2018-0411; AD 2018-17-22 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: A320-28-1242
- Latest revision known: A320-28-1242, Revision 01, dated October 3, 2017 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/airbus/a320-28-1242

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

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

- [AD 2018-17-22](https://openairdocs.org/ad/2018-17-22.md), effective Oct 4, 2018: Revision 01

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/airbus/a320-28-1242/proposed.md).

## Text (32 pages)

Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2018-0411; AD 2018-17-22 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

@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 - FUEL RECIRCULATION - ESTABLISH MISSING GROUND
CONNECTION TO INHIBIT RECIRCULATION
MODIFICATION No.: 159331J4303
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.A320-28-1242
ADDITIONAL WORK
**CONF ALL
REASON
Revision No. 01 has been issued to provide sufficient access to do the modification and to update the
effectivity.
CHANGES
The main changes of this revision are:
- Update the procedure to provide sufficient access
- Update the Job Set-up procedure
- Update the Close-up procedure
- Update the Test procedure
- Update the effectivty
SUMMARY
MATERIAL PRICE INFORMATION
 MATERIAL PRICE INFORMATION TABLE
UPDATED
R
EFFECTIVITY
 OPERATOR LIST UPDATED
 R
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 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
REFERENCES / REPERCUSSIONS
 REFERENCES/REPERCUSSIONS TABLE
UPDATED
R
MANPOWER
 MANPOWER UPDATED
 R
PLANNING INFORMATION
EFFECTIVITY
 EFFECTIVITY RELATED INFORMATION
UPDATED
R
Configuration definition
CONF 001
 CONFIGURATION DEFINITION UPDATED
 R
COMPLIANCE
Accomplishment Timescale
 ACCOMPLISHMENT TIMESCALE UPDATED
 R
MANPOWER
 MANPOWER UPDATED
 R
REFERENCES
 REFERENCED DOCUMENTATION UPDATED
 R
MATERIAL INFORMATION
MATERIAL - PRICE AND AVAILABILITY
Price and Availability
 PRICE AND AVAILABILITY UPDATED
MATERIAL PRICE UPDATED
R
ACCOMPLISHMENT INSTRUCTIONS
TASK 281242- 831-895-001-Modification
 TASK SOLUTION UPDATED
NOTE UPDATED
R
Task associated data - 001
 ZONE UPDATED
MAN HOURS UPDATED
ELAPSED TIME UPDATED
R
Subtask 281242-910-401-001
 SUBTASK SOLUTION UPDATED
 R
Subtask 281242-941-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
REFERENCES UPDATED
R
Subtask 281242-010-401-001
 SUBTASK SOLUTION ADDED
 N
Subtask 281242-831-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
FIN UPDATED
MANPOWER RESSOURCE UPDATED
R
Subtask 281242-410-401-001
 SUBTASK SOLUTION ADDED
 N
Subtask 281242-720-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
FIN UPDATED
REFERENCES UPDATED
R
Subtask 281242-710-401-001
 SUBTASK SOLUTION ADDED
 N
Subtask 281242-942-401-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION 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.
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 2
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 3

@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
HISTORY OF PREVIOUS REVISIONS
No previous revision
REVISION SEQUENCE
ORIGINAL: Dec 21/16
REVISION No. : 01 - Oct 03/17
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 3
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 4

@A318/A319/A320/A321
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
This Page Intentionally Left Blank
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 4
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### 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 - FUEL RECIRCULATION - ESTABLISH MISSING GROUND
CONNECTION TO INHIBIT RECIRCULATION
**CONF ALL
MODIFICATIONS
MODIFICATION CLASSIFICATION
MAJOR
 None
MINOR
 159331J4303
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
When introducing the A321 Centre Tank Fuel Transfer System onto A319CEO and A320CEO
154327J3527, a ground signal to the fuel level Sensor Control Unit (FLSCU) 1 & 2 that replicates the
centre tank pressure switch was not installed due to an error in the application of the wiring schematics.
This is affecting the IDG cooling logic which potentially can have an impact of the gravity feed ceilings.
This Modification Service Bulletin is published to add a wire connected to ground on FIN’s 9QJ and 7QJ
and associated wiring harness. This Mod is for In-service retrofit only. Forward fit aircraft are covered
by Mod 158740J4302.
This will restore the correct design intent and update the FCOM to increase the gravity feed ceiling.
GENERAL EVALUATION
EVALUATION TABLE
COMPLIANCE
 MANDATORY (1)
 CANCELS INSPECTION SB
 NO
POTENTIAL AD
 YES
 A/C OPERATION AFFECTED
 YES
RELIABILITY AFFECTED
 NO
 PAX COMFORT AFFECTED
 NO
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 1
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### 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
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 281242B01R01
 1
 204.00
 Ground Wires
EFFECTIVITY
This Service Bulletin is applicable to this (these) operator(s) :
41N 46U AAL ABY AEE AFL AHY AIC AIJ AMU ANZ APJ AVA
AXM BAW BER BTK CBG CBJ CCA CDC CEB CES CGH
 CHB CQH
CRK CSC CSN CSZ CTV DKH DLH DRK ETD EWE EWG EZY FFT
GCR HIM HKE IBE IGO ISR JCC
 JJP JST KAC MAC MEA MON
NKS ONE PGT PIC QDA QTR RBA RNA SAA SGQ SHJ TAR TBA
TGW THD TTW UEA VIV VJC VLG VNL VOI VRD VTI WZZ
CONCURRENT REQUIREMENTS
None
REFERENCES / REPERCUSSIONS
TFU
 28.16.00.002
OEB
 None
AOT
 None
SIL
 None
ISI
 None
LINE MAINTENANCE AFFECTED
 No
LIFE LIMIT
 None
OTHER
 None
NATURE OF THE WORK
AIRCRAFT
 YES
EQUIPMENT
 NO
HARD
 NO
SOFT
 NO
OBRM
 NO
MANPOWER
Task 281242-831-895-001: Modification
TOTAL MANHOURS
 13.25
ELAPSED TIME (HOURS)
 13.25
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 2
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 7

@A318/A319/A320/A321
SERVICE BULLETIN
SUMMARY
APPENDICES
None
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 3
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 8

@A318/A319/A320/A321
SERVICE BULLETIN
SUMMARY
This Page Intentionally Left Blank
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 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 - FUEL RECIRCULATION - ESTABLISH MISSING GROUND
CONNECTION TO INHIBIT RECIRCULATION
MODIFICATION No.: 159331J4303
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
: The intent of this modification is achieved in production on aircraft with
Manufacturer Serial Number (MSN) 7370 for A320, 7711 for A319, and
subsequent through modification No. 158740J4302.
(1) Models
319-115 319-132 320-214 320-216 320-232 320-233
(2) Effectivity by MSN
5935 5972 6006 6033 6092 6141 6195 6197-6198 6200 6202 6204 6206-6209
6212-6213 6215-6218 6220 6223-6226 6228-6229 6231 6234-6235 6237 6239-6240
6242-6244 6246-6248 6250-6251 6254 6257-6260 6262-6263 6265 6267 6269-6270
6274-6275 6277-6278 6280-6285 6287-6290 6292-6293 6296-6298 6300-6302 6304
6306-6307 6309-6311 6315 6317-6318 6320-6323 6325 6327-6329 6331-6333
6335-6336 6338-6341 6343 6345 6347-6350 6352-6353 6355-6358 6360-6362 6365
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 1
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 10

@A318/A319/A320/A321
SERVICE BULLETIN
6367-6370 6372-6375 6377-6381 6383-6384 6386 6388 6391-6394 6397 6400
6402-6405 6408 6410-6413 6416-6418 6421-6424 6426 6428-6431 6434 6436-6437
6439 6441-6442 6444-6447 6449-6450 6452-6453 6455-6458 6460 6462-6463
6465-6467 6469-6471 6474 6476 6478 6480-6481 6483 6485-6487 6489 6491-6492
6494 6496-6498 6500 6502-6503 6505-6507 6509-6510 6513-6514 6516 6518-6519
6521-6522 6524-6525 6527-6530 6533 6535-6536 6538 6540-6542 6544 6546-6547
6549-6553 6555 6557 6559 6561-6562 6564-6566 6568 6570-6572 6574 6576-6578
6580 6582-6584 6586-6589 6591 6593-6598 6600 6602-6608 6610-6612 6614
6616-6617 6619 6622 6624 6626 6628 6631 6633-6637 6640 6643-6646 6648 6651
6654-6655 6659 6661-6662 6664-6666 6668-6669 6671 6674-6677 6679-6681 6683
6686 6688-6690 6692 6694-6695 6697 6699-6700 6702 6704-6706 6708 6710
6712-6717 6721-6722 6724 6727-6728 6730 6732-6733 6735 6737-6739 6741-6743
6746 6749-6750 6752-6755 6759 6764-6765 6769 6771 6773 6775-6779 6782
6784-6789 6792 6794-6795 6800 6803 6805-6808 6811 6813 6815-6816 6820
6823-6824 6826 6830-6832 6834-6838 6841 6843 6846-6847 6851 6854 6856-6858
6862 6865 6870-6871 6874-6878 6881-6883 6885-6886 6888-6890 6892-6893 6896
6898 6900-6902 6906 6911 6917-6919 6921-6922 6924-6925 6927 6929 6931-6932
6934 6937 6939 6941-6944 6947-6948 6950-6951 6953-6955 6958-6959 6961-6966
6969-6972 6974 6977-6978 6980-6982 6984-6986 6989 6991-6993 6995-6997 7000
7002 7004 7006 7008 7012 7014 7016-7017 7019-7020 7022 7024-7028 7030 7035
7038-7041 7043-7044 7049-7050 7056-7057 7059 7062-7063 7066-7068 7070-7071
7075 7077 7080 7082 7086-7088 7091-7093 7095-7096 7099-7100 7104 7109-7111
7113 7115-7116 7118 7120-7123 7132 7134 7136 7138 7145 7148 7151 7153 7156
7158-7160 7163-7164 7167-7170 7174 7177-7178 7183 7189-7190 7197 7200-7201
7203 7207 7210-7211 7213 7215-7216 7219 7221 7223-7226 7228 7231-7232
7234-7235 7238 7240 7243 7245 7247 7251 7253 7256 7258-7259 7261-7264 7267
7270 7272 7275 7279 7282 7284 7289 7292 7295 7297 7302 7308 7312 7314-7315
7318-7319 7325 7328 7337-7338 7340 7345 7347 7350-7351 7355-7356 7361-7362
7365
(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
41N
 6727
46U
 6749
AAL
 6263 6277 6310 6349 6384 6393 6429 6437 6456 6491 6552 6595
6644
ABY
 6234 6293 6365 6430 6444 6481 6553 6665 6737 6942 7096 7225
7226 7315
AEE
 6611 6643 6655 6832 6961 6989 7014
AFL
 6954 6963 7038 7071 7215 7240 7275 7279 7295
AHY
 6285
AIC
 6446 6690 6715 6724 6803
AIJ
 7238 7264 7345
AMU
 6934
ANZ
 6460 6471 6533 6694 6706 7086 7362
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 2
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 11

@A318/A319/A320/A321
SERVICE BULLETIN
OPERATOR
 MSN
APJ
 6335 6640 6674 6824
AVA
 6209 6411 6617 6692 6739 6746 6862 7120 7284 7318
AXM
 6240 6262 6405 6428 6676 6702 6972 7030
 7057 7136 7164
BAW
 6290
BER
 6831 6856 6877 6892 6902 6927 6966 7312
BTK
 6280 6309 6356 6361 6372 6505 6628 6695 6697 6722 6782 6823
6951 6962 6991 7002 7050 7160 7223 7231 7245 7289 7337 7365
CBG
 6204
 6215
CBJ
 6198 6206 6212 6229 6426 6480 6580 6664 6730 6759 6769
CCA
 6239 6251 6283 6466 6514 6603 6699 6743 6882 6921 6932 7041
7134 7234
CDC
 6600 6648 6671 6679 6714 6764 6789 6805 6847 6941 7025 7027
7070 7178 7258
CEB
 6317 6325 6418 6441 6741 6777 6925 6929 7066
CES
 6213 6228 6250 6258 6260 6269 6274 6284 6298 6307 6323 6340
6355 6368 6373 6379 6431 6453 6469 6519 6578 6582 6593 6624
6661 6668 6688 6752 6792 6794 6836 6854 6890 6900 6901 6950
6959 6971 7004 7049 7113 7168 7189 7253
CGH
 7356
CHB
 6237
 6492 6870
 6924
 6931
 6964
 7325
CQH
 6216 6218 6220 6231 6318 6329 6358 6403 6410 6452 6497 6524
6591 6765 6786 6815 6826 6846 6858 6874 6881 7016 7099 7122
7159 7219 7282 7308 7338
CRK
 6246 6442 6776 7035 7077
CSC
 6339 6367 6369 6386 6397 6402 6421 6486 6540 6635 6654 6677
6710 6713 6732 6937 6982 7328 7350
CSN
 6462 6506 6530 6551 6612 6645 6974 6996 7022 7039 7151
CSZ
 6197 6217 6564 6686 6708 6721 6728 6742 6911 6984 7075 7190
7197 7232 7247 7270
CTV
 6207 6224 6243 6270 6322 6333 6408 6434 6503 6596 6753 6980
7091 7221 7297
 7319
DKH
 6315 6392 6542 6637 6808 6843 6944 7116 7169
DLH
 5935 5972 6006 6033 6092 6141 6202 6225 6265 6301 6423 6521
6549 6577 6636 6807 6947 6985 7024 7115 7158 7174 7251 7256
7355
DRK
 6496
ETD
 6226 6527
EWE
 6953 6992
 7012
 7019
 7056
 7148
EWG
 7087 7121 7210 7216 7259 7261 7263
EZY
 6267 6353 6412 6416 6485 6502 6509 6525 6541 6546 6562 6565
6568 6572 6587 6605 6606 6633 6675 6680 6754 6788 6834 6837
6885 6918 6970 6977 6981 7040 7044 7067 7093 7104 7132 7177
7183 7228 7235 7243 7340
FFT
 6773 6838 7095 7272
GCR
 6348 6449 6570 6820 6851 6898 6919 7068
HIM
 6626
HKE
 6302
IBE
 6244 6328
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 3
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 12

@A318/A319/A320/A321
SERVICE BULLETIN
OPERATOR
 MSN
IGO
 6208 6247 6275 6287 6289 6336
ISR
 7110
JCC
 7224
JJP
 6296 6381
JST
 6362
KAC
 6350 6375 6458 6476 6500 6516 6538
MAC
 6896
MEA
 6978 7006
MON
 6550
NKS
 6300 6304 6327 6331 6345 6370 6383 6424 6436 6463 6487 6507
6566 6586 6616 7008 7062 7156
ONE
 6528 6536 6561 6598 6634 6651 6689 6712 6800 6806 6813 6871
6876
PGT
 6465 6597 6619 6666 7145 7200
PIC
 7213 7262
QDA
 6259 6413 6547 6608 6681 6784 6893 6993 6995 7082
QTR
 6347 6467 6494 6529 6622 6646 6717 6811
RBA
 6771 6816
RNA
 6445 6555
SAA
 6200 6306 6439 6478
SGQ
 6455 6474 6583 6733
SHJ
 6659
TAR
 6338
TBA
 6380 6391 6404 6588 6716 6986 7059 7092 7302 7361
TGW
 7203
THD
 6254 6297 6374 6417 6775 6795
TTW
 6522 6604 6700 6917 6943
UEA
 6248 6281 6292 6357 6830 6922 7111 7201 7211 7292 7314
VIV
 6574 6602 6750 6755 6857 6875 6886 6888 6955 7020 7043 7153
VJC
 6242 6341 6378 6457 6498 6584 6738 6779 6878 6958 6997 7167
7170
VLG
 6377 6400 6450 6483 6510 6518 6535 6557 6571 6594 6607 6841
6883 7017 7026 7028 7109 7351
VNL
 6257 6282 6320 6422 6447 7080
VOI
 6288 6321 6332 6470 6610 6705 6778 6906 6948 6969 7000 7088
7118 7123
VRD
 6669 6704 6787 6835 6889 6939 6965 7063 7138 7207
VTI
 6223 6278 6311 6343 6388 6513 6735 6785 6865 7100 7163 7267
7347
WZZ
 6195 6235 6352 6360 6394 6489 6544 6559 6576 6589 6614 6631
6662 6683
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 4
7
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 13

@A318/A319/A320/A321
SERVICE BULLETIN
(4) Configuration by MSN
MSN
 CONFIGURATION
5935 5972 6006 6033 6092 6141 6195 6197 6198 6200 6202
6204 6206 6207 6208 6209 6212 6213 6215 6216 6217 6218
6220 6223 6224 6225 6226 6228 6229 6231 6234 6235 6237
6239 6240 6242 6243 6244 6246 6247 6248 6250 6251 6254
6257 6258 6259 6260 6262 6263 6265 6267 6269 6270 6274
6275 6277 6278 6280 6281 6282 6283 6284 6285 6287 6288
6289 6290 6292 6293 6296 6297 6298 6300 6301 6302 6304
6306 6307 6309 6310 6311 6315 6317 6318 6320 6321 6322
6323 6325 6327 6328 6329 6331 6332 6333 6335 6336 6338
6339 6340 6341 6343 6345 6347 6348 6349 6350 6352 6353
6355 6356 6357 6358 6360 6361 6362 6365 6367 6368 6369
6370 6372 6373 6374 6375 6377 6378 6379 6380 6381 6383
6384 6386 6388 6391 6392 6393 6394 6397 6400 6402 6403
6404 6405 6408 6410 6411 6412 6413 6416 6417 6418 6421
6422 6423 6424 6426 6428 6429 6430 6431 6434 6436 6437
6439 6441 6442 6444 6445 6446 6447 6449 6450 6452 6453
6455 6456 6457 6458 6460 6462 6463 6465 6466 6467 6469
6470 6471 6474 6476 6478 6480 6481 6483 6485 6486 6487
6489 6491 6492 6494 6496 6497 6498 6500 6502 6503 6505
6506 6507 6509 6510 6513 6514 6516 6518 6519 6521 6522
6524 6525 6527 6528 6529 6530 6533 6535 6536 6538 6540
6541 6542 6544 6546 6547 6549 6550 6551 6552 6553 6555
6557 6559 6561 6562 6564 6565 6566 6568 6570 6571 6572
6574 6576 6577 6578 6580 6582 6583 6584 6586 6587 6588
6589 6591 6593 6594 6595 6596 6597 6598 6600 6602 6603
6604 6605 6606 6607 6608 6610 6611 6612 6614 6616 6617
6619 6622 6624 6626 6628 6631 6633 6634 6635 6636 6637
6640 6643 6644 6645 6646 6648 6651 6654 6655 6659 6661
6662 6664 6665 6666 6668 6669 6671 6674 6675 6676 6677
6679 6680 6681 6683 6686 6688 6689 6690 6692 6694 6695
6697 6699 6700 6702 6704 6705 6706 6708 6710 6712 6713
6714 6715 6716 6717 6721 6722 6724 6727 6728 6730 6732
6733 6735 6737 6738 6739 6741 6742 6743 6746 6749 6750
6752 6753 6754 6755 6759 6764 6765 6769 6771 6773 6775
6776 6777 6778 6779 6782 6784 6785 6786 6787 6788 6789
6792 6794 6795 6800 6803 6805 6806 6807 6808 6811 6813
6815 6816 6820 6823 6824 6826 6830 6831 6832 6834 6835
6836 6837 6838 6841 6843 6846 6847 6851 6854 6856 6857
6858 6862 6865 6870 6871 6874 6875 6876 6877 6878 6881
6882 6883 6885 6886 6888 6889 6890 6892 6893 6896 6898
6900 6901 6902 6906 6911 6917 6918 6919 6921 6922 6924
6925 6927 6929 6931 6932 6934 6937 6939 6941 6942 6943
6944 6947 6948 6950 6951 6953 6954 6955 6958 6959 6961
6962 6963 6964 6965 6966 6969 6970 6971 6972 6974 6977
6978 6980 6981 6982 6984 6985 6986 6989 6991 6992 6993
6995 6996 6997 7000 7002 7004 7006 7008 7012 7014 7016
7017 7019 7020 7022 7024 7025 7026 7027 7028 7030 7035
7038 7039 7040 7041 7043 7044 7049 7050 7056 7057 7059
7062 7063 7066 7067 7068 7070 7071 7075 7077 7080 7082
001
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 5
7
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MSN
 CONFIGURATION
7086 7087 7088 7091 7092 7093 7095 7096 7099 7100 7104
7109 7110 7111 7113 7115 7116 7118 7120 7121 7122 7123
7132 7134 7136 7138 7145 7148 7151 7153 7156 7158 7159
7160 7163 7164 7167 7168 7169 7170 7174 7177 7178 7183
7189 7190 7197 7200 7201 7203 7207 7210 7211 7213 7215
7216 7219 7221 7223 7224 7225 7226 7228 7231 7232 7234
7235 7238 7240 7243 7245 7247 7251 7253 7256 7258 7259
7261 7262 7263 7264 7267 7270 7272 7275 7279 7282 7284
7289 7292 7295 7297 7302 7308 7312 7314 7315 7318 7319
7325 7328 7337 7338 7340 7345 7347 7350 7351 7355 7356
7361 7362 7365
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 281242B01R01
 1
B. CONCURRENT REQUIREMENTS
None
C. REASON
(1) History
When introducing the A321 Centre Tank Fuel Transfer System onto A319CEO and
A320CEO 154327J3527, a ground signal to the fuel level Sensor Control Unit (FLSCU)
1 & 2 that replicates the centre tank pressure switch was not installed due to an error in
the application of the wiring schematics. This is affecting the IDG cooling logic which
potentially can have an impact of the gravity feed ceilings.
(2) Objective/Action
This Modification Service Bulletin is published to add a wire connected to ground on
FIN’s 9QJ and 7QJ and associated wiring harness. This Mod is for In-service retrofit
only. Forward fit aircraft are covered by Mod 158740J4302.
(3) Advantages
This will restore the correct design intent and update the FCOM to increase the gravity
feed ceiling.
(4) Operational/Maintenance Consequences
None
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 6
7
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D. DESCRIPTION
To accomplish this Service Bulletin it is necessary to :
Task 281242-831-895-001: Modification
(1) Remove the Shelf 92VU for Access
(2) Modify the Wiring in the Avionics Compartment Shelf 92VU
(3) Install the Shelf 92VU Removed for Access
E. COMPLIANCE
(1) Classification
MANDATORY: Service Bulletin must be accomplished.
(2) Accomplishment Timescale
Accomplishment of this Service Bulletin must be done within 2 years from the date of
issuance of Revision 00 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 2 year
compliance time 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 281242-831-895-001: Modification
Get Access
 1.50
On Aircraft
Remove the Shelf 92VU for Access
 3.50
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 7
7
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Task 281242-831-895-001: Modification
Modify the Wiring in the Avionics Compartment Shelf
92VU
0.75
Install the Shelf 92VU Removed for Access
 4.00
Tests
 2.00
Close-Up
 1.50
TOTAL MANHOURS
 13.25
ELAPSED TIME (HOURS)
 13.25
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 20-21-15
20-28-00 21-58-00
 21-58-34
24-41-00
 24-41-34
 28-42-00
28-42-34
 28-46-00 28-46-34
Elec. Std. Practices Manual (ESPM)
 20-33-00 20-33-44 20-48-00
20-51-20 20-52-10 20-52-21
20-54-50 20-55-00 20-56-51
Standards Manual (SM)
K. PUBLICATION AFFECTED
Aircraft Schematic Manual (ASM)
 28-16-01
Aircraft Wiring List (AWL)
Aircraft Wiring Manual (AWM)
 28-16-01
Illustrated Parts Catalog (IPC)
 28-16-00
This Service Bulletin has an impact on flight operations documentation. Refer to ISI
00.00.00135 paragraph "Flight Operations Products" for further information on the update of
affected Flight Operations Products.
Technical queries should be addressed through TechRequest on Airbus World using
"Technical Data / Support to report Service Bulletins" form.
L. INTERCHANGEABILITY/MIXABILITY
Not Applicable
M. SPARES
None
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 8
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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 281242B01R01
 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 281242B01R01
Cost
 204.00
 USD
Availability
 120 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
AirbusSpares portal or through a request for quotation to airbus.kit@airbus.com.
B. INDUSTRY SUPPORT INFORMATION
AIRBUS will share the costs of accomplishment of this Service Bulletin by providing the kits at
no charge for orders placed before the Dec 30/18.
AIRBUS will credit the man hours indicated in this Service Bulletin at the agreed in-house
warranty labor rate for claims received no later than 90 days after completion of the last
affected aircraft of your fleet, for the accomplishment of this Service Bulletin before Dec
30/18.
This Service Bulletin is the subject of an monitored retrofit campaign.
For the organization of this retrofit, you are kindly requested to contact AIRBUS retrofit
management department.
AIRBUS
AIRBUS CUSTOMER SERVICES DIRECTORATE
1 Rond Point Maurice Bellonte
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 9
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31707 BLAGNAC CEDEX
France
E-mail : monitored.retrofit@airbus.com
C. LIST OF COMPONENTS
Kit 281242B01R01
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 ITEM
 OLD PART N˚
 INT
 SEE
NOTES
D9000095028795
 1
 BUNDLE
NSA935401-04
 4
 TIE
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
None
E. PARTS TO BE RE-IDENTIFIED BY OPERATOR
None
F. TOOLING
None
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 10
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3. ACCOMPLISHMENT INSTRUCTIONS
Task 281242-831-895-001 - 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.
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 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
: 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. To allow more flexibility, the rule "refer to" and "in
accordance with" will apply to these paragraphs 3.C. and 3.D. 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
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 11
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SERVICE BULLETIN
long as the RC paragraphs can be done and the aircraft can be put back into a
serviceable condition.
Task Associated Data
Zone
120
 122
Modified FIN
7QJ 9QJ 92VU
Access
Door
 811
Manpower
TOTAL MANHOURS
 13.25
ELAPSED TIME (HOURS)
 13.25
A. GENERAL
(1) Subtask 281242-910-401-001 - 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 20-16-00-912-001
Task 20-21-15-912-001
Task 20-28-00-912-003
Elec. Std. Practices Manual (ESPM)
 20-33-00
20-33-44
20-51-20
20-52-10
20-54-50
20-56-51
(a) For the general installation of electr ical wire harnesses, re fer to ESPM 20-33-00.
(b) Do a check of the electr ical connectors before you connect them, r efer to ESPM
20-52-10.
(c) For the protection of the connectors , contacts and termi nals, refer to ESPM
20-54-50.
(d) To install new wires, cut them to the necessary length, crimp the terminals and
connect them.
(e) For the Frame (FR) identification, refer to AMM 06-31-53, Page Block 001.
(f) For the identification of zones, refer to AMM 06-20-00, Page Block 001.
(g) For the identification of access panels, refer to AMM 06-41-53, Page Block 001.
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 12
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(h) To torque tighten the electrical component fasteners, refer to AMM Task
20-21-15-912-001.
(i) For the electrical bonding, re fer to ESPM 20-51-20 and AMM Task
20-28-00-912-003.
(j) For the cable tie application and tooling, refer to ESPM 20-33-44 and ESPM
20-56-51.
(k) For circuit breaker safety practices, refer to AMM Task 20-16-00-912-001.
(l) Put all the retained hardware in identified plastic bags and attach the bags to the
related unit.
(2) Subtask 281242-839-401-001 - 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 281242-941-401-001 - Job Set-up
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-41-53, Page Block 001
Task 12-34-24-869-002
Task 21-58-34-000-001
Task 24-41-34-000-001
Task 28-42-34-000-001
Task 28-46-34-000-001
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
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 13
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- 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
12-34-24-869-002.
(b) Put an access platform in position under the access door 811 zone 122.
(c) Open the avionics compartment access door 811, refer to AMM 06-41-53, Page
Block 001.
(d) Do the job set-up procedure as specified in the Removal of the Fuel Level-Sensing
Control-Unit (FLSCU), refer to
 AMM Task 28-46-34-000-001.
(e) Do the job set-up procedure as specified in the Removal of the Conditioned Service
Air System (CSAS) Control Unit, re fer to AMM Task 21-58-34-000-001.
(f) Do the job set-up procedure as specified in the Removal of the Fuel Quantity
Indicating Computer (FQIC), refer to AMM Task 28-42-34-000-001.
(g) Do the job set-up procedure as specified in the Removal of the Ground Auxiliary
Power Control Unit (GAPCU), refer to AMM Task 24-41-34-000-001.
C. PROCEDURE
(1) Subtask 281242-010-401-001 - Remove the Shelf 92VU for Access
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
Manpower Resources
Manhours
 3.50
Minimum number of person
 1
Subtask elapsed time
 3.50
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 21-58-34-000-001
Task 24-41-34-000-001
Task 28-42-34-000-001
Task 28-46-34-000-001
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 14
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(a) Remove the Shelf
 92VU:
1
 Remove the equipment from Shelf
 92VU:
a
 Remove the FLSCU FIN
 7QJ and FIN
 9QJ, refer to AMM Task
28-46-34-000-001.
FIN 7QJ
1
 FLSCU-1
 Retain
FIN 9QJ
1
 FLSCU-2
 Retain
b
 Remove the CSAS Control Unit FIN
 100HW, refer to AMM Task
21-58-34-000-001.
FIN 100HW
1
 CSAS Control Unit
 Retain
c
 Remove the FQIC FIN
 3QT, refer to AMM Task 28-42-34-000-001.
FIN 3QT
1
 FQIC
 Retain
d
 Remove the GAPCU FIN
 24XG, refer to AMM Task 24-41-34-000-001.
FIN 24XG
1
 GAPCU
 Retain
2
 Put blanking caps on the disconnected connectors and receptacles.
3
 Disconnect the bonding braid from Shelf
 92VU.
4
 Remove the attachment hardware from the shelf.
NOTE
: Retain the hardware.
5
 Remove Shelf
 92VU and install it on the bench.
(2) Subtask 281242-831-401-001 - Modify the Wiring in the Avionics Compartment
Shelf 92VU
Work Zones and Access Panels
Zone
 Access/Work location
122
 Access
 Door 811
Work location
 from Frame 1 to Frame 9
Manpower Resources
Manhours
 0.75
Minimum number of person
 1
Subtask elapsed time
 0.75
Skills
 ELECTRICAL
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 15
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Material necessary to do the job
Kit 281242B01R01
ITEM
 NEW PART N˚
 QTY (UM)
 KEYWORD
 SEE
NOTES
D9000095028795
 1
 BUNDLE
NSA935401-04
 4
 TIE
References
Elec. Std. Practices Manual (ESPM)
 20-33-00
20-33-44
20-48-00
20-52-10
20-52-21
20-54-50
20-56-51
Fig. A-UBAAA
Location of Equipment
Sheet 01
Fig. A-UHAAA
Hook-Up Chart of the Additional Ground
Wire on FLSCU 1 and 2
Sheet 01
Fig. A-UWAAA
Wiring Modification in the Avionics
Compartment Shelf 92VU
Sheet 01
(a) On the Aft face of the Avionics Compartment Shelf 92VU, modify the wiring, refer to
ESPM 20-33-00, ESPM 20-52-10, ESPM 20-54-50, ESPM 20-48-00 and Fig. A-
UBAAA Sheet 01
.
1
 Install ground wires for FIN 7QJ and FIN 9QJ as shown on the wiring diagram
and the related hook-up chart:
- Fig. A-UWAAA Sheet 01
- Fig. A-UHAAA Sheet 01
 , supplied in:
1 Bundle D9000095028795
2
 Do a continuity test of the new gr ound wires, refer t o ESPM 20-52-21.
3
 Attach the wires as necessary with, refer to ESPM 20-33-44 and ESPM
20-56-51:
4 Tie-Cable NSA935401-04
(3) Subtask 281242-410-401-001 - Install the Shelf 92VU Removed for Access
Work Zones and Access Panels
Zone
 Access/Work location
120
 Access
 Door 811
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 16
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Manpower Resources
Manhours
 4.00
Minimum number of person
 1
Subtask elapsed time
 4.00
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 20-28-00-912-003
Task 21-58-34-400-001
Task 24-41-34-400-001
Task 28-42-34-400-001
Task 28-46-34-400-001
Elec. Std. Practices Manual (ESPM)
 20-51-20
(a) Install the Shelf
 92VU:
1
 Install Shelf
 92VU on the FWD Electronics Rack
 90VU with the retained
hardware.
2
 Connect the bonding braid to Shelf
 92VU and do the electrical bonding, refer
to AMM Task 20-28-00- 912-003 and ESPM 20-51-20.
3
 Remove the blanking caps from the connectors.
4
 Install the equipment on Shelf
 92VU:
a
 Install the FLSCU FIN
 7QJ and FIN
 9QJ, refer to AMM Task
28-46-34-400-001.
FIN 7QJ
1
 FLSCU-1
 Retained at
removal
FIN 9QJ
1
 FLSCU-2
 Retained at
removal
b
 Install the CSAS Control Unit FIN
 100HW, refer to AMM Task
21-58-34-400-001.
FIN 100HW
1
 CSAS Control Unit
 Retained at
removal
c
 Install the FQIC FIN
 3QT, refer to AMM Task 28-42-34-400-001.
FIN 3QT
1
 FQIC
 Retained at
removal
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 17
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d
 Install the GAPCU FIN
 24XG, refer to AMM Task 24-41-34-400-001.
FIN 24XG
1
 GAPCU
 Retained at
removal
D. TEST
(1) Subtask 281242-720-401-001 - Functional
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 28-42-00-740-001
Task 28-46-00-740-001
(a) Do the functional bite test of the FLSCU-1 FIN
 7QJ and FLSCU-2 FIN
 9QJ, refer to
AMM Task 28-46-00-740-001.
(b) Do the functional bite test of the FQIC FIN
 3QT, refer to AMM Task
28-42-00-740-001 and AMM Task 28-46-00-740-001.
(2) Subtask 281242-710-401-001 - Operational
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 21-58-00-710-001
Task 24-41-00-740-002
(a) Do an operational test of the CSAS without bleed air, refer to AMM Task
21-58-00-710-001.
(b) Do an operational test of the GAPCU with the CFDS, refer to AMM Task
24-41-00-740-002.
E. CLOSE-UP
(1) Subtask 281242-942-401-001 - Close-up
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-41-53, Page Block 001
Task 21-58-34-400-001
Task 24-41-34-400-001
Task 28-42-34-400-001
Task 28-46-34-400-001
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 18
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(a) Do the close-up procedure as specified in the Installation of the FLSCU, refer to
AMM Task 28-46-34-400-001.
(b) Do the close-up procedure as specified in the Installation of the CSAS Control Unit,
refer to AMM Task 21-58-34-400-001.
(c) Do the close-up procedure as specified in the Installation of the FQIC, refer to AMM
Task 28-42-34-400-001.
(d) Do the close-up procedure as specified in the Installation of the GAPCU, refer to
AMM Task 24-41-34-400-001.
(e) Make sure that the work areas are clean and clear of tools and other items of
equipment.
(f) Close the avionics compartment access door 811, refer to AMM 06-41-53, Page
Block 001.
(g) Remove the access platform from under the avionics compartment access door 811
zone 122.
(h) Put the aircraft back to its initial configuration.
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 19
7
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**CONF ALL
FLSCU 2 FLSCU 1
9QJ 7QJ
92VU
FWD ELECTRONICS RACK 90VU
A
FR9
811
Z122
Z121
VIEW LOOKING AFT
A
N_SB_281242_7_BAAA_01_01
Figure A-UBAAA - Sheet 01
Location of Equipment
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 20
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**CONF ALL
9QJ FLSCU−2
AA
600VG
DC1
2012C
AFTER
UNLESS OTHERWISE SPECIFIED PREFIX ALL
UNLESS OTHERWISE SPECIFIED ALL WIRES ARE GAUGE
UNLESS OTHERWISE SPECIFIED ALL ROUTES ARE
WIRE IDENTIFICATION WITH ATA
SHIELDING CONTINUITY WIRES ARE GAUGE
NOTE :
CF24
000000
1M
2816
N_SB_281242_5_WAAA_01_00
NEW WIRE
606VG
DC2
2112C
AA
FLSCU−17QJ
2M
Figure A-UWAAA - Sheet 01
Wiring Modification in the Avionics Compartment Shelf 92VU
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 21
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**CONF ALL
END1 LEAD END2
InstructionsZone or
Panel Elec.Ident. Term Terminal P/N
Wire
Ident. Co Rte Gauge
Length
mm Inch
Zone or
Panel Elec.Ident. Term Terminal P/N
L
i
n
e
 1   92VU       7QJ−AA    12C E0170FA2200 2816−0021   2M  CF24  2100    84   92VU      606VG      / EN3155−015F2018 (a) A
 2   92VU       9QJ−AA    12C E0170FA2200 2816−0020   1M  CF24  1470    58   92VU      600VG      / EN3155−015F2018 (a) A
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 (a)    = BUNDLE D9000095028795
 A      = ADDED WIRE
Figure A-UHAAA - Sheet 01
Hook-Up Chart of the Additional Ground Wire on FLSCU 1 and 2
DATE: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 22
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Service Bulletin REPORTING
TITLE: FUEL - FUEL RECIRCULATION - ESTABLISH MISSING GROUND
CONNECTION TO INHIBIT RECIRCULATION
MODIFICATION No.: 159331J4303
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: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 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: Dec 21/16 SERVICE BULLETIN No.: A320-28-1242
REVISION No.: 01 - Oct 03/17 Page: 1
7
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