# Airbus Mandatory Service Bulletin A330-27-3179

Copy: Revision 01 ("U.S. DOT/FAA - Service Bulletin - A330-27-3179 R01"), 38 pages: PDF https://openairdocs.org/files/sha256/a0/2a/a02a117761a5c23c1b7fd94a1683ba1d033354ef693d993ce9c18a00638f181c; text https://openairdocs.org/service-documents/airbus/a330-27-3179/file/a02a117761a5.md. Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2013-0665; AD 2013-22-02 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Airbus](https://openairdocs.org/service-documents/airbus.md)
- Type: Service bulletin (Mandatory Service Bulletin)
- Number: A330-27-3179
- Latest revision known: A330-27-3179, Revision 01, dated June 13, 2013 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/airbus/a330-27-3179

## ADs that cite it (3) (OpenAirDocs)

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

- [AD 2024-25-11](https://openairdocs.org/ad/2024-25-11.md), effective Mar 7, 2025: Revision 01
- [AD 2013-22-02](https://openairdocs.org/ad/2013-22-02.md), effective Dec 5, 2013: Revision 01
- [AD 2013-16-11](https://openairdocs.org/ad/2013-16-11.md), effective Sep 27, 2013: No revision named

Also cited in [2 proposed ADs](https://openairdocs.org/service-documents/airbus/a330-27-3179/proposed.md).

## Text (38 pages)

Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2013-0665; AD 2013-22-02 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

@A330
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: 27
TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER
ACTUATOR - THSA SCREW SHAFT LOWER SPLINES INSPECTION
(P/N 47147-500 AND -700)
MODIFICATION No.: None
This page transmits Revision No.01 of Service Bulletin No.A330-27-3179
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 add reference to Service Bulletin No. A330-27-3194 for the final fix.
CHANGES
SUMMARY
REASON/DESCRIPTION/OPERATIONAL
CONSEQUENCES
REASON 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
REASON
Objective/Action
 OBJECTIVE/ACTION UPDATED
 R
COMPLIANCE
Accomplishment Timescale
 ACCOMPLISHMENT TIMESCALE UPDATED
 R
REFERENCES
 REFERENCED DOCUMENTATION UPDATED
 R
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 2

@A330
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
MATERIAL INFORMATION
INDUSTRY SUPPORT INFORMATION
 INDUSTRY SUPPORT INFORMATION UPDATED
 R
ACCOMPLISHMENT INSTRUCTIONS
TASK 273179- 832-801-001-Inspection
Subtask 273179-220-001-001
 SUBTASK SOLUTION UPDATED
REFERENCED DOCUMENTATION UPDATED
REFERENCES UPDATED
NOTE UPDATED
R
Fig. A-FFAAA
Fig. A-FFAAA Sheet 01
 SHEET UPDATED
 R
Appendix 01 - Inspection Report
Fig. A-FRAAA
Fig. A-FRAAA Sheet 01
 SHEET UPDATED
 R
FILLING INSTRUCTIONS
This Service Bulletin has been generated electronically and is reissued as a complete document.
Replace the complete document.
Put this Revision Transmittal Sheet in front of the Service Bulletin.
HISTORY OF PREVIOUS REVISIONS
No previous revision
REVISION SEQUENCE
ORIGINAL: Feb 14/12
REVISION No. : 01 - Jun 13/13
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 2
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 3

@A330
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: 27
TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER
ACTUATOR - THSA SCREW SHAFT LOWER SPLINES INSPECTION
(P/N 47147-500 AND -700)
**CONF ALL
MODIFICATIONS
None
REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES
Some Trimmable Horizontal Stabilizer Actuators (THSA) PN 47147-500 have been found with corrosion
affecting the ballscrew lower splines (between the tie bar and the screwjack).
Investigations have identified the root cause for the corrosion :
- Contact/friction between the tie bar and the inner surface of the ballscrew leads to the removal of
Molykote (corrosion protection) in front of the tie bar splines,
- Humidity ingress initiates surface oxidation starting from surfaces where Molykote is removed,
- Water retention in lower part leads to corrosion spread out and apparition of a brown deposit (iron
oxide).
This Inspection Service Bulletin requires an inspection of ballscrew lower splines on all THSA PN
47147-500 older than 11 years since retrofit -400 (or -400 new).
This inspection impacts also the THSA PN 47147-700 as the introduction of the CSP does not change
the material of the ballscrew.
This Service Bulletin is published to advise operators of A330-300 aircraft of the issuance of Goodrich
Actuation Systems Service Bulletin No. 47147-27-18 which defines the acceptable corrosion on the
lower splines on the THSA screwjack.
Accomplishment of this Service Bulletin permits to detect corrosion and contributes to ensure the
reliable function of the THSA.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 4

@A330
SERVICE BULLETIN
SUMMARY
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
 ETOPS AFFECTED
 NO
STRUCTURAL LIFE EXTN
 NO
 VENDOR SB INVOLVED
 YES
NOTE
 (1)
: Service Bulletin must be accomplished.
MATERIAL PRICE INFORMATION
No Material
EFFECTIVITY
This Service Bulletin is applicable to this (these) operator(s) :
AAR ACA AEA
 AFL BEL CAL CCA CES CHH CPA CSN DAL DLH
EDW EIN ETD FIN FWI GIA HDA HFY KAL MAS MSR OBS OHY
OMA PAL QFA QTR RSY SAI
 SAS SIA SVA SWR THA THY TSC
USA VIR VKG XAX
CONCURRENT REQUIREMENTS
None
REFERENCES / REPERCUSSIONS
TFU
 27.44.51.010
OEB
 None
AOT
 None
SIL
 None
LINE MAINTENANCE AFFECTED
 No
LIFE LIMIT
 None
OTHER
 OIT SE 999.0022/12
NATURE OF THE WORK
AIRCRAFT
 YES
EQUIPMENT
 NO
HARD
 NO
SOFT
 NO
OBRM
 NO
MANPOWER
Task 273179-832-801-001: Inspection
TOTAL MANHOURS
 4.00
ELAPSED TIME (HOURS)
 4.00
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 2
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 5

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SERVICE BULLETIN
SUMMARY
Task 273179-832-801-001: Inspection
Additional manhours relat ed to Vendor SB; refer to:
Do a Detailed Inspection of the THSA Ballscrew
 Goodrich Actuation Systems Service
Bulletin No. 47147-27-18
Task 273179-833-801-001: Repair
TOTAL MANHOURS
 13.00
ELAPSED TIME (HOURS)
 9.00
APPENDICES
Appendix 01 - Inspection Report
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 3
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 6

@A330
SERVICE BULLETIN
SUMMARY
**CONF ALL
 − Z311 Z312
1CS
A
312AR
FR87
FR80
B
A
NOTE:
AREA TO BE INSPECTED01
G_SB_273179_5_SAAA_01_00
01
B
Figure A-F SAAA - S heet 01
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 4
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 7

@A330
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: 27
TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER
ACTUATOR - THSA SCREW SHAFT LOWER SPLINES INSPECTION
(P/N 47147-500 AND -700)
MODIFICATION No.: None
This document contains AIRBUS PROPRIETARY INFORMATION and shall at all times remain the
property of AIRBUS; no intellectual property right or licence is granted by AIRBUS in connection with
any information contained in it. It is delivered on the express condition that said document and the
information contained in it shall be treated as confidential, shall not be used for any purpose other than
that for which it is hereby delivered. It shall not be disclosed in whole or in part to third parties and shall
not be duplicated in any manner (except for the purposes of performing the tasks described hereunder
and provided that any recipient of such document shall comply with the conditions herein), without
AIRBUS prior written consent.
1. PLANNING INFORMATION
**CONF ALL
A. EFFECTIVITY
(1) Models
330-301 330-302 330-303 330-321 330-322 330-323 330-341 330-342
330-343
(2) Effectivity by MSN
0012 0017 0030 0037 0045 0050 0054-0055 0060 0062 0064-0066
 0070-0072
 0077
0082-0083 0086-0087 0095-0096 0098-0099
 0102 0106-0107 0109
 0111-0113
 0116
0118-0122 0127 0132 0138 0140 0143-0144 0148 0153 0155 0162 0165 0171-0172
0177 0183-0184 0188-0189 0191 0198 0200 0203 0206 0209 0219 0224 0231 0234
0241 0244 0256 0267 0277 0279 0284 0315 0323 0333 0337-0338 0342 0344 0346
0349-0351 0356-0357 0368 0370 0375 0380 0386 0388-0389 0393 0400 0405
0407-0408 0412 0418-0421 0423 0425 0428 0439 0479 0484 0490 0496-0497 0512
0515 0524 0533 0539 0542 0548-0550 0552-0553 0558 0564-0565 0568 0570 0574
0576 0578-0579 0581 0588 0591 0593 0595 0602-0603 0607 0623 0629 0636-0637
0640-0642 0645 0648 0654 0659 0662-0663 0669-0671 0673-0676 0679-0680 0687
0690-0692 0695 0699 0701 0705 0707-0708 0711-0714 0716 0720-0721 0725 0734
0741 0752 0758 0769 0772-0773 0776-0777 0781-0782 0784 0786 0789 0791 0799
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 8

@A330
SERVICE BULLETIN
0803 0805-0806 0813 0817 0823 0826-0827 0830 0833 0836 0838 0843 0845 0847
0850-0851 0855 0857-0859 0861-0862 0865-0866 0879 0889 0893 0895-0896 0905
0907-0908 0913 0915 0918 0920 0922 0928 0935-0937 0942 0952 0954 0958-0959
0964-0965 0974 0978 0983 0985-0986 0989-0990 0994 0997 1000-1001 1003
1006-1007 1010 1012-1013 1015 1018 1021 1023 1025-1026 1029 1035 1037 1044
1048 1055 1058 1060 1063 1065-1067 1071-1072 1074-1075 1077-1078 1081
1084-1090 1093 1097-1099 1101 1103 1105-1108 1110 1124 1126-1127 1130-1132
1137 1141 1143 1145-1147 1149-1151 1153 1156-1157 1160 1163 1165 1167-1168
1170 1172-1173 1177-1178 1181 1187-1190 1192-1193 1195-1196 1199 1201
1204-1206 1209 1211-1212 1215-1216 1219 1222 1226 1228-1232 1234 1238-1239
1243 1245-1247
(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
AAR
 0640 0676 0708 0772 0803 0845 1001 1055 1151 1211
ACA
 0277 0279 0284 0344 0400 0408 0412 0419
AEA
 0670
 1097
AFL
 1058 1065 1072 1077 1103 1232 1247
BEL
 0030 0037 0045 0082 0095
CAL
 0602 0607 0641 0671 0675 0691 0699 0707 0714 0725 0752 0769
0805 0823 0838 0861 0920 1177
CCA
 1087 1110 1130 1187 1199 1216
CES
 0713 0720 0773 0777 0781 0782 0791 0830 0836 0851 0862 0866
0928 0936 0942
CHH
 1168 1178 1190
CPA
 0102 0113 0118 0121 0155 0386 0389 0393 0418 0420 0421 0423
0439 0539 0548 0565 0669 0673 0679 0776 0850 0855 0895 0915
0959 1163 1196 1222 1239
CSN
 0879 0889 0908 0935 0937 0954 0958 0964
DAL
 0524 0533 0542 0549 0552 0578 0588 0591 0663 0674 0690 0784
0799 0806 0817 0827 0843 0857 0858 0859 0865
DLH
 0570 0576 0579 0629 0636 0642 0645 0648 0687 0701 0896 0905
0913 0922 0989
EDW
 1193
EIN
 0847 0985 1025 1106
ETD
 1071 1081 1167 1205 1226 1245
FIN
 0994 1007 1013 1023 1067 1078 1088 1173
FWI
 0758 0965 1021
GIA
 0138 0140 0144 0148 0153 0165
HDA
 0012
 0017
 0071
 0083 0099 0106 0109 0234 0244
 0405 0479 0512
0581 0654 0692 0716 0741 0786
HFY
 0096 0127
KAL
 0162 0172 0206 0219 0241 0256 0267 0338 0350 0351 0368 0425
0428 0484 0490 0550
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 2
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 9

@A330
SERVICE BULLETIN
OPERATOR
 MSN
MAS
 0077 0107 0116 0119 1209 1219 1229 1234 1243
MSR
 1143 1230 1238 1246
OBS
 0833
OHY
 0072 0087 0098 0143
OMA
 1044 1063 1093
PAL
 0183 0184 0188 0189 0191 0198 0200 0203
QFA
 0553 0558 0564 0574 0593 0595 0603 0695 0705 0712
QTR
 0623 0637 0659 0680 0711 0721 0734 0789 0813 0826 0893 0907
0918
RSY
 0120
 0171
SAI
 0055
 0070
 0086
SAS
 0496 0497 0515 0568
SIA
 0978 0983 0986 0997 1006 1010 1012 1015 1085 1098 1099 1105
1107 1124 1132 1146 1149 1156 1157
SVA
 1108 1127 1137 1141 1147 1153 1189 1192
SWR
 1000 1018 1026 1029 1084 1089 1101 1145 1181 1188
THA
 0050 0060 0062 0064 0065 0066 0112 0122 0209 0224 0231 0346
0990 1003 1035 1037 1060 1074 1086 1090
THY
 1150 1160 1170 1172 1204 1212 1228
TSC
 0111 0132 0177 0407
USA
 0315 0323 0333 0337 0342 0370 0375 0380 0388
VIR
 1195 1201 1206
 1215
 1231
VKG
 0349 0356 0357
XAX
 0054 0662
 0952 0974 1048 1066 1075 1126 1131 1165
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 3
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 10

@A330
SERVICE BULLETIN
(4) Configuration by MSN
MSN
 CONFIGURATION
0012 0017 0030 0037 0045 0050 0054 0055 0060 0062 0064
0065 0066 0070 0071 0072 0077 0082 0083 0086 0087 0095
0096 0098 0099 0102 0106 0107 0109 0111 0112 0113 0116
0118 0119 0120 0121 0122 0127 0132 0138 0140 0143 0144
0148 0153 0155 0162 0165 0171 0172 0177 0183 0184 0188
0189 0191 0198 0200 0203 0206 0209 0219 0224 0231 0234
0241 0244 0256 0267 0277 0279 0284 0315 0323 0333 0337
0338 0342 0344 0346 0349 0350 0351 0356 0357 0368 0370
0375 0380 0386 0388 0389 0393 0400 0405 0407 0408 0412
0418 0419 0420 0421 0423 0425 0428 0439 0479 0484 0490
0496 0497 0512 0515 0524 0533 0539 0542 0548 0549 0550
0552 0553 0558 0564 0565 0568 0570 0574 0576 0578 0579
0581 0588 0591 0593 0595 0602 0603 0607 0623 0629 0636
0637 0640 0641 0642 0645 0648 0654 0659 0662 0663 0669
0670 0671 0673 0674 0675 0676 0679 0680 0687 0690 0691
0692 0695 0699 0701 0705 0707 0708 0711 0712 0713 0714
0716 0720 0721 0725 0734 0741 0752 0758 0769 0772 0773
0776 0777 0781 0782 0784 0786 0789 0791 0799 0803 0805
0806 0813 0817 0823 0826 0827 0830 0833 0836 0838 0843
0845 0847 0850 0851 0855 0857 0858 0859 0861 0862 0865
0866 0879 0889 0893 0895 0896 0905 0907 0908 0913 0915
0918 0920 0922 0928 0935 0936 0937 0942 0952 0954 0958
0959 0964 0965 0974 0978 0983 0985 0986 0989 0990 0994
0997 1000 1001 1003 1006 1007 1010 1012 1013 1015 1018
1021 1023 1025 1026 1029 1035 1037 1044 1048 1055 1058
1060 1063 1065 1066 1067 1071 1072 1074 1075 1077 1078
1081 1084 1085 1086 1087 1088 1089 1090 1093 1097 1098
1099 1101 1103 1105 1106 1107 1108 1110 1124 1126 1127
1130 1131 1132 1137 1141 1143 1145 1146 1147 1149 1150
1151 1153 1156 1157 1160 1163 1165 1167 1168 1170 1172
1173 1177 1178 1181 1187 1188 1189 1190 1192 1193 1195
1196 1199 1201 1204 1205 1206 1209 1211 1212 1215 1216
1219 1222 1226 1228 1229 1230 1231 1232 1234 1238 1239
1243 1245 1246 1247
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
Consumable CMLA01
 1
B. CONCURRENT REQUIREMENTS
None
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 4
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 11

@A330
SERVICE BULLETIN
C. REASON
(1) History
Some Trimmable Horizontal Stabilizer Actuators (THSA) PN 47147-500 have been found
with corrosion affecting the ballscrew lower splines (between the tie bar and the
screwjack).
Investigations have identified the root cause for the corrosion :
- Contact/friction between the tie bar and the inner surface of the ballscrew leads to
the removal of Molykote (corrosion protection) in front of the tie bar splines,
- Humidity ingress initiates surface oxidation starting from surfaces where Molykote is
removed,
- Water retention in lower part leads to corrosion spread out and apparition of a
brown deposit (iron oxide).
(2) Objective/Action
This Inspection Service Bulletin requires an inspection of ballscrew lower splines on all
THSA PN 47147-500 older than 11 years since retrofit -400 (or -400 new).
This inspection impacts also the THSA PN 47147-700 as the introduction of the CSP
does not change the material of the ballscrew.
This Service Bulletin is published to advise operators of A330-300 aircraft of the
issuance of Goodrich Actuation Systems Service Bulletin No. 47147-27-18 which defines
the acceptable corrosion on the lower splines on the THSA screwjack.
(3) Advantages
Accomplishment of this Service Bulletin permits to detect corrosion and contributes to
ensure the reliable function of the THSA.
(4) Operational/Maintenance Consequences
None
D. DESCRIPTION
To accomplish this Service Bulletin it is necessary to :
Task 273179-832-801-001: Inspection
(1) Do a Detailed Inspection of the THSA Ballscrew
Task 273179-833-801-001: Repair
(1) Replace the Trimmable Horizontal Stabilizer Actuator (THSA)
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 5
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 12

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SERVICE BULLETIN
E. COMPLIANCE
(1) Classification
MANDATORY: Service Bulletin must be accomplished.
(2) Accomplishment Timescale
CONDITION
 ACTION
 COMPLIANCE TIME
 REPETITIVE INTERVAL
For THSA which PN are
not 47147-500 and
47147-700
No further action *
 None
 None
For THSA which PN are
47147-500 or
47147-700 having
accumulated less than
11 years since retrofit
into PN 47147-400 or
(-400 new) at Service
Bulletin issuance
Do SUBTASK
273179-220-001 001 Do
a Detailed Inspection of
the THSA Ballscrew
Within 24 months after
the THSA has
accumulated 11 years
(since retrofit into -400
or -400 new)
None
For THSA which PN are
47147-500 or
47147-700 having
accumulated more than
11 years since retrofit
into PN 47147-400 or
(-400 new) at Service
Bulletin issuance
Do SUBTASK
273179-220-001 001 Do
a Detailed Inspection of
the THSA Ballscrew
Before reaching 13
years (since retrofit into
-400 or -400 new) or
within 3 months from
ISB issuance whichever
occurs later
None
THSA classified TYPE 1
 None
 None
 Repeat this inspection
every 24 months
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 6
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 13

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SERVICE BULLETIN
CONDITION
 ACTION
 COMPLIANCE TIME
 REPETITIVE INTERVAL
If THSA is replaced by
PN 47147-500 or
47147-700 (classified
type 1):
Repeat this inspection
at the first convenient
maintenance opportunity
which occurs after the
THSA have
accumulated 11 years
since retrofit into
PN47147-400 (or -400
new) but no later than
13 years since retrofit
into PN47147-400 (or
-400 new) or within 3
months after SB
issuance whichever
occurs later.
If replacement THSA is
PN 47147-500 or
47147-700 (not
classified type 1):
Replace the THSA
before next flight
THSA classified TYPE 2
and
Ballscrew integrity test
is OK
Replace the THSA, refer
to TASK
273179-833-801 001
Repair
Before 24 months or
4,400 FC whichever
occurs first from initial
inspection
If THSA is not replaced
by PN 47147-500 or
47147-700:
None *
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 7
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 14

@A330
SERVICE BULLETIN
CONDITION
 ACTION
 COMPLIANCE TIME
 REPETITIVE INTERVAL
If THSA is replaced by
PN 47147-500 or
47147-700 (classified
type 1):
Repeat this inspection
at the first convenient
maintenance opportunity
which occurs after the
THSA have
accumulated 11 years
since retrofit into
PN47147-400 (or -400
new) but no later than
13 years since retrofit
into PN47147-400 (or
-400 new) or within 3
months after SB
issuance whichever
occurs later.
If replacement THSA is
PN 47147-500 or
47147-700 (not
classified type 1):
Replace the THSA
before next flight
THSA classified TYPE 2
and
Ballscrew integrity test
is not OK
Replace the THSA, refer
to TASK
273179-833-801 001
Repair
Before next flight
If THSA is not replaced
by PN 47147-500 or
47147-700:
None *
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 8
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SERVICE BULLETIN
CONDITION
 ACTION
 COMPLIANCE TIME
 REPETITIVE INTERVAL
If THSA is replaced by
PN 47147-500 or
47147-700 (classified
type 1):
Repeat this inspection
at the first convenient
maintenance opportunity
which occurs after the
THSA have
accumulated 11 years
since retrofit into
PN47147-400 (or -400
new) but no later than
13 years since retrofit
into PN47147-400 (or
-400 new) or within 3
months after SB
issuance whichever
occurs later.
If replacement THSA is
PN 47147-500 or
47147-700 (not
classified type 1):
Replace the THSA
before next flight
THSA classified TYPE 3
and
Ballscrew integrity test
is OK
Replace the THSA, refer
to TASK
273179-833-801 001
Repair
Before 10 days
If THSA is not replaced
by PN 47147-500 or
47147-700:
None *
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 9
5
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SERVICE BULLETIN
CONDITION
 ACTION
 COMPLIANCE TIME
 REPETITIVE INTERVAL
If THSA is replaced by
PN 47147-500 or
47147-700 (classified
type 1):
Repeat this inspection
at the first convenient
maintenance opportunity
which occurs after the
THSA have
accumulated 11 years
since retrofit into
PN47147-400 (or -400
new) but no later than
13 years since retrofit
into PN47147-400 (or
-400 new) or within 3
months after SB
issuance whichever
occurs later.
If replacement THSA is
PN 47147-500 or
47147-700 (not
classified type 1):
Replace the THSA
before next flight
THSA classified TYPE 3
and
Ballscrew integrity test
is not OK
Replace the THSA, refer
to TASK
273179-833-801 001
Repair
Before next flight
If THSA is not replaced
by PN 47147-500 or
47147-700:
None *
NOTE *: In case MOD 49590 (introduction of the PN 47172-300 from 47172-200) is not yet recorded
as applied on the A/C, record application of MOD 200238 through Service Bulletin No.
 A330-27-3182
or in case the MOD 58916 (introduction of the PN 47172-530 from PN 47172-510) is not yet recorded
as applied on the A/C, record application of MOD 202802 through Service Bulletin No. A330-27-3194.
Detailed Inspection of the THSA Ballscrew
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
and/or intervals and/or date) given above 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 Approv al No. EASA. 21J.031.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 10
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SERVICE BULLETIN
If an aircraft listed in the effectivity has a modification or repair embodied that is not of
AIRBUS origin, and which affects the content of this Service Bulletin, the operator is
responsible for obtaining approval by its airworthiness authority for any adaptation necessary
before incorporation of the Service Bulletin.
G. MANPOWER
The manpower estimates given in this Service Bulletin are based on the direct labor cost to
do the work. These estimates assume that the work will be done by experienced personnel,
and may need to be revised upwards to suit operator’s circumstances. The estimates do not
include the time to prepare, plan or inspect the work. Manufacture and procurement of parts
and tools, drying times for paints, sealants, etc., and general administration work are also not
included.
Task 273179-832-801-001: Inspection
Get Access
 2.00
Close-Up
 2.00
TOTAL MANHOURS
 4.00
ELAPSED TIME (HOURS)
 4.00
Additional manhours relat ed to Vendor SB; refer to:
Do a Detailed Inspection of the THSA Ballscrew
 Goodrich Actuation Systems Service
Bulletin No. 47147-27-18
Task 273179-833-801-001: Repair
Get Access
 2.00
On Aircraft
Replace the Trimmable Horizontal Stabilizer Actuator
(THSA)
8.00
Tests
 1.00
Close-Up
 2.00
TOTAL MANHOURS
 13.00
ELAPSED TIME (HOURS)
 9.00
H. WEIGHT AND BALANCE
Not Changed
I. ELECTRICAL LOAD DATA
Not Changed
J. REFERENCES
Aircraft Maintenance Manual (AMM)
 06-20-00 06-41-53 12-34-24
27-44-51
Elec. Std. Practices Manual (ESPM)
 20-55-00
Service Bulletin (SB)
 A330-27-3182
A330-27-3194
Vendor Service B ulletin (VSB)
 Goodrich Actuation Systems
Service Bulletin No. 47147-27-18
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 11
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SERVICE BULLETIN
K. PUBLICATION AFFECTED
Impact on scheduled maintenance: Refer to Maintenance Planning Document (MPD)
L. INTERCHANGEABILITY/MIXABILITY
Not Applicable
M. SPARES
Actuator-THS 47147-500
Actuator-THS 47147-700
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 12
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SERVICE BULLETIN
2. MATERIAL INFORMATION
**CONF ALL
A. MATERIAL - PRICE AND AVAILABILITY
(1) Procurement Addresses
Vendor parts are to be procured from:
Goodrich Actuation Systems
13 avenue de l’Eguillette Saint-Ouen l’Aumone
95056 Cergy Pontoise
CEDEX France
(2) Price and Availability
No Airbus kit will be provided.
Procurement terms for the equipment must be negotiated with the equipment supplier.
B. INDUSTRY SUPPORT INFORMATION
Refer to the Goodrich Actuation Systems Service Bulletin No. 47147-27-18 for the industry
support terms of the Vendor Service Bulletin parts and labor.
C. LIST OF COMPONENTS
No Kit
D. LIST OF MATERIALS - OPERATOR SUPPLIED
(1) Consumable Materials
NOTE
: To accomplish this Service Bulletin it is necessary to use the
expendable parts listed in AMM Task 27-44-51-400-805 and AMM Task
27-44-51-400-801.
Consumable CMLA01
ITEM
 DESCRIPTION
 REFERENCE TO CML
MAT. No.
QTY PER A/C
 SEE
NOTES
Solvent General Purpose
 11-026
 As required
(2) Components
None
(3) Equipment
None
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 13
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SERVICE BULLETIN
E. PARTS TO BE RE-IDENTIFIED BY OPERATOR
None
F. TOOLING
(1) Tooling - Price and Availability
None
(2) Tools
NOTE
: To accomplish this Service Bulletin it is necessary to use the tools listed
in AMM Task 27-44-51-220-801 and AMM Task 27-44-51-400-801.
(3) Special Tools
None
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 14
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SERVICE BULLETIN
3. ACCOMPLISHMENT INSTRUCTIONS
Task 273179-832-801-001 - Inspection
WARNING
: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS
INCLUDED IN THE REFERENCED PROCEDURES.
CAUTION
: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP
ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY
AND MECHANICALLY SERVICEABLE) . WHEN YOU DO MAINTENANCE
WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING,
COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO
THIS :
- PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS
NECESSARY ON WIRING AND COMPONENTS.
- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND
OTHER CONTAMINATION.
THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION
AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.
IN CASE OF CONTAMINATION REFER TO ESPM 20-55-00.
Task Associated Data
Zone
From 311 to 312
Access
Door
 312AR
Manpower
TOTAL MANHOURS
 4.00
ELAPSED TIME (HOURS)
 4.00
Additional manhours related to Vendor SB; refer to:
Goodrich Actuation Systems Service Bulletin No. 47147-27-18
A. GENERAL
(1) Subtask 273179-910-001-001 - Standard Practices
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 06-20-00, Page Block 001
06-41-53, Page Block 001
(a) For the identification of zones (Refer to AMM 06-20-00, Page Block 001).
(b) For the identification of access panels (Refer to AMM 06-41-53, Page Block 001).
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 15
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SERVICE BULLETIN
(c) Tag the parts that you must remove and retain to make the subsequent installation
easier.
(d) Put all the retained hardware in identified plastic bags and attach the bags to the
related unit.
(2) Subtask 273179-839-001-001 - Administrative
Manpower Resources
Skills
 NON SPECIFIC
Write in the applicable aircraft records that you have done all the work given in this
Service Bulletin.
B. PREPARATION
(1) Subtask 273179-941-001-001 - Job Set-up
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 12-34-24-860-802
(a) Make sure that the aircraft is electrically grounded (Refer to AMM Task
12-34-24-860-802).
(b) Put the access platforms in position at the passenger/crew door and Zone 312.
(c) Open the passenger/crew door(s).
(d) Open the access door 312AR.
(e) Put the warning notices in position on the hydraulic controls to tell persons not to
operate the hydraulic systems.
(2) Subtask 273179-010-001-001 - Remove for Access the Lower Claw Stop
Manpower Resources
Skills
 AIRFRAME
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-000-805
(a) Remove the lower claw stop (Refer to AMM Task 27-44-51-000-805).
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 16
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SERVICE BULLETIN
C. PROCEDURE
(1) Subtask 273179-220-001-001 - Do a Detailed Inspection of the THSA Ballscrew
Work Zones and Access Panels
Zone
 Access/Work location
From
 311
To
 312
 Access
 Door 312AR
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-220-801
Service Bulletin (SB)
 A330-27-3182
A330-27-3194
Vendor Service B ulletin (VSB)
 Goodrich Actuation Systems 47147-27-18
Fig. A-FBAAA
Inspection Area
Sheet 01
Fig. A-FFAAA
Flow Chart
Sheet 01
At the threshold given in the Planning Information Paragraph E.(2) :
(a) For THSA which PN are not 47147-500 and 47147-700:
No further action.
NOTE
: In case MOD 49590 (introduction of the PN 47172-300 from
47172-200) is not yet recorded as applied on the A/C,
record application of MOD 200238 through Service Bulletin No.
A330-27-3182 or in case the MOD 58916 (introduction of the PN
47172-530 from PN 47172-510) is not yet recorded as applied on
the A/C, record application of MOD 202802 through Service Bulletin
No. A330-27-3194
 .
(b) For THSA which PN are 47147-500 or 47147-700:
Do a detailed inspection of the THSA ballscrew in accordance with Goodrich
Actuation Systems Service Bulletin No. 47147-27-18.
1
 If THSA is classified Type 1 (no corrosion) :
a
 Send Appendix 01 - Inspection Report .
b
 Repeat this inspection every 24 months.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 17
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SERVICE BULLETIN
2
 If THSA is classified Type 2 (local traces of corrosion) after cleaning :
a
 Do a ballscrew integrity test in accordance with AMM Task
27-44-51-220-801.
<1> If the test is correct :
<a> Before 24 months or 4,400FC whichever occurs first from
initial inspection, replace the THSA FIN 1CS, refer to TASK
273179-833-801 001 Repair .
[1] If THSA is replaced by PN 47147-500 or 47147-700
(classified type 1):
Repeat this inspection at the first convenient maintenance
opportunity which occurs after the THSA have
accumulated 11 years since retrofit into PN47147-400 (or
-400 new) but no later than 13 years since retrofit into
PN47147-400 (or -400 new) or within 3 months after SB
issuance whichever occurs later.
[2] If replacement THSA is PN 47147-500 or 47147-700 (not
classified type 1):
Replace the THSA before next flight.
[3] If THSA is not replaced by PN 47147-500 and 47147-700:
No further action.
NOTE
: In case MOD 49590 (introduction of the
PN 47172-300 from 47172-200) is not
yet recorded as applied on the A/C,
record application of MOD 200238 through
Service Bulletin No.
 A330-27-3182 or in
case the MOD 58916 (introduction of the
PN 47172-530 from PN 47172-510) is
not yet recorded as applied on the A/C,
record application of MOD 202802 through
Service Bulletin No. A330-27-3194
 .
<b> Send the Appendix 01 - Inspection Report .
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 18
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SERVICE BULLETIN
<2> If the test is not correct :
<a> Before next flight, replace the THSA FIN 1CS, refer to TASK
273179-833-801 001 Repair .
[1] If THSA is replaced by PN 47147-500 or 47147-700
(classified type 1):
Repeat this inspection at the first convenient maintenance
opportunity which occurs after the THSA have
accumulated 11 years since retrofit into PN47147-400 (or
-400 new) but no later than 13 years since retrofit into
PN47147-400 (or -400 new) or within 3 months after SB
issuance whichever occurs later.
[2] If replacement THSA is PN 47147-500 or 47147-700 (not
classified type 1):
Replace the THSA before next flight.
[3] If THSA is not replaced by PN 47147-500 and 47147-700:
No further action.
NOTE
: In case MOD 49590 (introduction of the
PN 47172-300 from 47172-200) is not
yet recorded as applied on the A/C,
record application of MOD 200238 through
Service Bulletin No.
 A330-27-3182 or in
case the MOD 58916 (introduction of the
PN 47172-530 from PN 47172-510) is
not yet recorded as applied on the A/C,
record application of MOD 202802 through
Service Bulletin No. A330-27-3194
 .
<b> Send the Appendix 01 - Inspection Report .
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 19
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SERVICE BULLETIN
3
 If THSA is classified Type 3 (significant corrosion) :
a
 Do a ballscrew integrity test in accordance with AMM Task
27-44-51-220-801.
<1> If the test is correct :
<a> Before 10 days, replace the THSA FIN 1CS, refer to TASK
273179-833-801 001 Repair .
[1] If THSA is replaced by PN 47147-500 or 47147-700
(classified type 1):
Repeat this inspection at the first convenient maintenance
opportunity which occurs after the THSA have
accumulated 11 years since retrofit into PN47147-400 (or
-400 new) but no later than 13 years since retrofit into
PN47147-400 (or -400 new) or within 3 months after SB
issuance whichever occurs later.
[2] If replacement THSA is PN 47147-500 or 47147-700 (not
classified type 1):
Replace the THSA before next flight.
[3] If THSA is not replaced by PN 47147-500 and 47147-700:
No further action.
NOTE
: In case MOD 49590 (introduction of the
PN 47172-300 from 47172-200) is not
yet recorded as applied on the A/C,
record application of MOD 200238 through
Service Bulletin No.
 A330-27-3182 or in
case the MOD 58916 (introduction of the
PN 47172-530 from PN 47172-510) is
not yet recorded as applied on the A/C,
record application of MOD 202802 through
Service Bulletin No. A330-27-3194
 .
<b> Send the Appendix 01 - Inspection Report .
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 20
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SERVICE BULLETIN
<2> If the test is not correct :
<a> Before next flight, replace the THSA FIN 1CS, refer to TASK
273179-833-801 001 Repair .
[1] If THSA is replaced by PN 47147-500 or 47147-700
(classified type 1):
Repeat this inspection at the first convenient maintenance
opportunity which occurs after the THSA have
accumulated 11 years since retrofit into PN47147-400 (or
-400 new) but no later than 13 years since retrofit into
PN47147-400 (or -400 new) or within 3 months after SB
issuance whichever occurs later.
[2] If replacement THSA is PN 47147-500 or 47147-700 (not
classified type 1):
Replace the THSA before next flight.
[3] If THSA is not replaced by PN 47147-500 and 47147-700:
No further action.
NOTE
: In case MOD 49590 (introduction of the
PN 47172-300 from 47172-200) is not
yet recorded as applied on the A/C,
record application of MOD 200238 through
Service Bulletin No.
 A330-27-3182 or in
case the MOD 58916 (introduction of the
PN 47172-530 from PN 47172-510) is
not yet recorded as applied on the A/C,
record application of MOD 202802 through
Service Bulletin No. A330-27-3194
 .
<b> Send the Appendix 01 - Inspection Report .
D. TEST
None
E. CLOSE-UP
(1) Subtask 273179-410-001-001 - Install the Lower Claw Stop
Manpower Resources
Skills
 AIRFRAME
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-400-805
(a) Install the lower claw stop (Refer to AMM Task 27-44-51-400-805).
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 21
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SERVICE BULLETIN
(2) Subtask 273179-942-001-001 - Close-up
Manpower Resources
Skills
 NON SPECIFIC
(a) Make sure that the work area is clean and clear of tools and other items.
(b) Close the access panel 312AR.
(c) Remove the WARNING NOTICE(S).
(d) Close the passenger/crew door(s).
(e) Remove the access platforms.
(f) Restore the systems and the air craft to normal operating condition.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 22
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SERVICE BULLETIN
Task 273179-833-801-001 - Repair
WARNING
: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS
INCLUDED IN THE REFERENCED PROCEDURES.
CAUTION
: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP
ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY
AND MECHANICALLY SERVICEABLE) . WHEN YOU DO MAINTENANCE
WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING,
COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO
THIS :
- PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS
NECESSARY ON WIRING AND COMPONENTS.
- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND
OTHER CONTAMINATION.
THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION
AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.
IN CASE OF CONTAMINATION REFER TO ESPM 20-55-00.
Task Associated Data
Zone
From 311 to 312
Modified FIN
1CS
Access
Door
 312AR
Manpower
TOTAL MANHOURS
 13.00
ELAPSED TIME (HOURS)
 9.00
A. GENERAL
(1) Subtask 273179-910-002-001 - Standard Practices
Manpower Resources
Skills
 NON SPECIFIC
Material necessary to do the job
Consumable CMLA01
ITEM
 DESCRIPTION
 REFERENCE TO
CML MAT. No.
QTY PER A/C
 SEE
NOTES
Solvent General Purpose
 11-026
 As required
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 23
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References
Aircraft Maintenance Manual (AMM)
 06-20-00, Page Block 001
06-41-53, Page Block 001
(a) For the identification of zones (Refer to AMM 06-20-00, Page Block 001).
(b) For the identification of access panels (Refer to AMM 06-41-53, Page Block 001).
(c) Tag the parts that you must remove and retain to make the subsequent installation
easier.
(d) Put all the retained hardware in identified plastic bags and attach the bags to the
related unit.
(e) Put blanking caps on the disconnected electrical connectors.
(f) Clean the area with :
Solvent General
Purpose
11-026 As required
(2) Subtask 273179-839-002-001 - 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 273179-941-002-001 - Job Set-up
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 12-34-24-860-802
Task 27-44-51-000-801
(a) Make sure that the aircraft is electrically grounded (Refer to AMM Task
12-34-24-860-802).
(b) Put the access platforms in position at the passenger/crew door and Zone 312.
(c) Open the passenger/crew door(s).
(d) Open the access door 312AR.
(e) Put the warning notices in position on the hydraulic controls to tell persons not to
operate the hydraulic systems.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 24
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(f) Do the job set-up procedure as specified in the removal of the Trimmable
Horizontal Stabilizer Actuator (THSA) (Refer to AMM Task 27-44-51-000-801).
C. PROCEDURE
(1) Subtask 273179-960-001-001 - Replace the Trimmable Horizontal Stabilizer
Actuator (THSA)
Work Zones and Access Panels
Zone
 Access/Work location
From
 311
To
 312
 Access
 Door 312AR
Manpower Resources
Manhours
 8.00
Minimum number of person
 2
Subtask elapsed time
 4.00
Skills
 AIRFRAME
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-000-801
Task 27-44-51-400-801
(a) Remove the THSA, FIN 1CS (Refer to AMM Task 27-44-51-000-801).
1 Actuator-THS 47147-500
or
1 Actuator-THS 47147-700
(b) Install the new THSA, FIN 1CS (Refer to AMM Task 27-44-51-400-801).
D. TEST
(1) Subtask 273179-720-001-001 - Test
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-400-801
(a) Job Set-up :
1
 Remove the Safety clips and tags and close the circuit breakers as
specified after the installation of the THS Actuator (Refer to AMM Task
27-44-51-400-801).
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 25
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(b) Procedure :
1
 Do the test procedure as specified after the installation of the THS Actuator
(Refer to AMM Task 27-44-51-400-801).
E. CLOSE-UP
(1) Subtask 273179-942-002-001 - Close-up
Manpower Resources
Skills
 NON SPECIFIC
References
Aircraft Maintenance Manual (AMM)
 Task 27-44-51-400-801
(a) Do the close-up procedure as specified in the installation of the THSA (Refer to
AMM Task 27-44-51-400-801).
(b) Make sure that the work area is clean and clear of tools and other items.
(c) Close the access panel 312AR.
(d) Remove the WARNING NOTICE(S).
(e) Close the passenger/crew door(s).
(f) Remove the access platforms.
(g) Restore the systems and the aircraft to normal operating condition.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 26
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 33

@A330
SERVICE BULLETIN
**CONF ALL
 − Z311 Z312
1CS
A
312AR
FR87
FR80
B
A
NOTE:
AREA TO BE INSPECTED01
01
B
G_SB_273179_5_BAAA_01_00
Figure A-F BAAA - S heet 01
Inspection Area
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 27
5
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### Page 34

@A330
SERVICE BULLETIN
**CONF ALL
AT THE THRESHOLD GIVEN IN THE PLANNING INFORMATION PARAGRAPH E.(2).
REFER TO SUBTASK 273179−220−001−001.
DO A DETAILED INSPECTION OF THE TRIMMABLE HORIZONTAL
STABILIZER ACTUATOR (THSA) FIN 1CS BALLSCREW
TEST OK NO YES
OR
THSA CLASSIFIED TYPE 2
(LOCAL TRACES OF
THSA CLASSIFIED TYPE 1
(NO CORROSION)
SEND THE INSPECTION
REPORT TO AIRBUS
THSA CLASSIFIED TYPE 3
(SIGNIFICANT CORROSION)
DO A BALLSCREW 
INTEGRITY TEST
REFER TO AMM TASK
27−44−51−220−801
TEST OKYES
NO FURTHER ACTION
REPEAT EVERY
24 MONTHS
DO A BALLSCREW 
INTEGRITY TEST
REFER TO AMM TASK
27−44−51−220−801
CORROSION)
QUESTION
ACTION
FINDING
BEFORE 10 DAYS
REPLACE THE THSA
BEFORE NEXT
FLIGHT
BEFORE 24 MONTHS
OR 4,400 FC
REPLACE THE THSA REPLACE THE THSA
REFER TO TASK
273179−833−801−001
REFER TO TASK
273179−833−801−001
REFER TO TASK
273179−833−801−001
GAPS BETWEEN SCREW SHAFT AND TIE ROD TEETH
REFER TO GOODRICH ACTUATION SYSTEMS SB No. 47147−27−18
DO A DETAILED INSPECTION OF THE PN 47147−500 OR PN 47147−700
47147−500 OR
THSA PN
47147−700
NOYES
SEND THE INSPECTION
REPORT TO AIRBUS
THSA PN 47147−500 OR
REPLACED BY
47147−700
NO YES
NO FURTHER ACTION
CLASSIFIED TYPE 1
THSA
(NO CORROSION) NOYES
REPLACE THE THSA
BEFORE NEXT FLIGHT
NOTE:
IN CASE MOD 49590 (INTRODUCTION OF THE PN 47172−300 FROM 47172−200) IS NOT YET RECORDED AS APPLIED ON THE A/C, RECORD APPLICATION OF MOD 200238 THROUGH SB 27−3182 OR IN01
01
01
CASE THE MOD 58916 (INTRODUCTION OF THE PN 47172−530 FROM PN 47172−510) IS NOT YET RECORDED AS APPLIED ON THE A/C, RECORD APPLICATION OF MOD 202802 THROUGH SB 27−3194. G_SB_273179_5_FAAA_01_08
Figure A-FFAAA - Sheet 01
Flow Chart
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 28
5
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### Page 35

@A330
SERVICE BULLETIN
Appendix 01 - Inspection Report
**CONF ALL
(1) Inspection Report
The results of the inspection, including no findings, replacement or action to be done, must be
forwarded to Airbus departm ent SEEL6, on th e attached inspec tion report sheet.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
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### Page 36

@A330
SERVICE BULLETIN
Appendix 01 - Inspection Report
**CONF ALL
INSPECTION REPORT
SERVICE BULLETIN No. :
A/C MSN :
FLIGHT CYCLES :
FLIGHT HOURS :
A330−27−3179
DATE OF INSPECTION :
RETURN TO :
AIRBUS
CUSTOMER SERVICES ENGINEERING − SEEL6
FLIGHT CONTROL SYSTEMS A330/A340 &
INSPECTION METHOD :
THSA BALLSCREW PN/SN:
CORROSION CLASIFICATION
DETAILED INSPECTION
WIDE BODY
1 ROND POINT MAURICE BELLONTE
31707 BLAGNAC CEDEX
FRANCE
FAX +33 (0)5 61 93 32 73
 − Z311 Z312
1CS
A
FR87
FR80
B
A
B
BALLSCREW INTEGRITY THSA REPLACED BY
TEST CORRECT PN 47147−500 OR 47147−700(CLASSIFIED TYPE 1)
TYPE 1
YESTYPE 2
TYPE 3
NO
YES NO YES NO
YES NO
N/A N/A
312AR
G_SB_273179_5_RAAA_01_04
Figure A-FRAAA - Sheet 01
Inspection Report
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 2
5
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### Page 37

@A330
SERVICE BULLETIN
REPORTING SHEET
TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER
ACTUATOR - THSA SCREW SHAFT LOWER SPLINES INSPECTION
(P/N 47147-500 AND -700)
MODIFICATION No.: None
Please complete the appropriate item (A or B):
A - SB WILL BE
 embodied YES/NO (if NO please comment)
If YES, aircraft concer ned (as per SB effectivity by default) and planned dates (month/year) of
embodiment:
B - SB HAS BEEN
 embodied on aircraft:
Operator comments:
From Airline:
Name/Title:
Signature: Date:
If operational documentation is affected (see Paragraph 1.K of this SB): If information is needed prior to
next normal revision or prior to SB embodiment, please indicate required service(s):
Either: Modification Operational Impact (MOI), if available YES/NO
Or : Intermediate revision YES/NO
Important Information:
 This SB will only be incorporated in your maintenance and operational
documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With
the next feasible revision, this will result in
- Updating of maintenance documentation to show pre and post SB data.
- Updating of maintenance and operational documentation to show post SB data after embodiment.
If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically
include them in the manual revisions. Refer to SIL 00-037 for detailed information.
Please return this completed sheet to:
AIRBUS
CUSTOMER SERVICES DIRECTORATE
1 Rond Point Maurice Bellonte
31707 BLAGNAC CEDEX FRANCE
Attn: SDC32 Technical Data and Documentation Services
F A X :( + 3 3 )56 19 32 80 6
e-mail: sb.reporting@airbus.com
or via your Resident Customer Support Office.
Alternatively, SB lists via letters or fax are also accepted.
DATE: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

### Page 38

@A330
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: Feb 14/12 SERVICE BULLETIN No.: A330-27-3179
REVISION No.: 01 - Jun 13/13 Page: 1
5
Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.

---
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