# @A340 SERVICE BULLETIN REVISION TRANSMITTAL SHEET AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F Fax : (33) 5 61 93 42 51



# MANDATORYMANDATORYMANDATORY
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.A340-27-4175 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. A340-27-4187 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 1 5

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# @A340 SERVICE BULLETIN REVISION TRANSMITTAL SHEET
MATERIAL INFORMATION INDUSTRY SUPPORT INFORMATION INDUSTRY SUPPORT INFORMATION UPDATED R ACCOMPLISHMENT INSTRUCTIONS TASK 274175- 832-801-001-Inspection Subtask 274175-220-001-001 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 2 5

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# @A340 SERVICE BULLETIN SUMMARY AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F Fax : (33) 5 61 93 42 51 This summary is for information only and is not approved for modification of the aircraft. 

# MANDATORYMANDATORYMANDATORY
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 A340-200/300 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 1 5

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# @A340 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 LROPS 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) :

15R 47W 56W 58X 83V ABD ABQ ACA AFR AIB ALK ARG CAL CCA CPA DGA DLH FIN GAF GFA HFY IBE IRC IRM KAC LAN M3R MAU MDG MSR NMB PAL QAF RJA S3R SAA SAS SFB SLM SVW SWR TAP THT THY UAE VCV VIR 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 274175-832-801-001: Inspection TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 2 5

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# @A340 SERVICE BULLETIN SUMMARY Task 274175-832-801-001: Inspection Additional manhours related to Vendor SB; refer to: Do a Detailed Inspection of the THSA Ballscrew Goodrich Actuation Systems Service Bulletin No. 47147-27-18 Task 274175-833-801-001: Repair TOTAL MANHOURS 13.00 ELAPSED TIME (HOURS) 9.00 APPENDICES Appendix 01 - Inspection Report

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 3 5

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# @A340 SERVICE BULLETIN SUMMARY

**CONF ALL

− Z311 Z312 1CS 

### A

312AR FR87

FR80



### B 

## A

**NOTE:** AREA TO BE INSPECTED 01 01



## B

F_SB_274175_5_SAAA_01_00 Figure A-FSAAA - Sheet 01

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 4 5

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# @A340 SERVICE BULLETIN
AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F Fax : (33) 5 61 93 42 51



# MANDATORYMANDATORYMANDATORY
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 340-211 340-212 340-213 340-311 340-312 340-313 (2) Effectivity by MSN 0002 0004-0006 0009 0011 0013-0014 0018-0020 0022-0029 0031-0035 0038 0041 0043-0044 0046-0049 0051-0053 0056-0058 0061 0063 0074-0076 0078-0081 0084-0085 0088-0091 0093-0094 0101 0104 0114-0115 0117 0123 0125-0126 0128 0131 0133-0137 0139 0141-0142 0145-0147 0149-0152 0154 0156-0161 0163-0164 0166-0170 0173-0176 0178-0180 0182 0185-0187 0190 0192-0194 0196-0197 0199 0201-0202 0204 0207-0208 0210 0212-0218 0220-0221 0225 0227-0228 0233 0235-0237 0242-0243 0245-0246 0252 0257 0260 0263-0264 0268 0270 0273-0274 0278 0280 0282 0292 0297 0302 0304 0307 0310 0318-0319 0321 0325 0327 0329 0331-0332 0335 0347 0352 0354-0355 0359 0363 0367 0373-0374 0377-0379 0381 0385 0387 0390 0395 0399 0402 0406 0411 0413-0415 0424 0429-0430 0433-0435 0438 0442 0446-0447 0450 0459 0467 0470 0474 0483 0528 0538 0541 0544-0546 0554 0556 0559 0561-0562 0582 0585 0590 0598 0643 0646 0651 0668 0793 0800 0835 0844 0921 0938 0955 DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 1 5

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# @A340 SERVICE BULLETIN (3) Effectivity by Operator The Operator/MSN relationship is provided for information only and is correct at the time of issue in accordance with the information available to AIRBUS. Any future changes resulting from transfer of an aircraft from one operator to another will not be reflected in this list unless the Service Bulletin is revised for another reason. OPERATOR MSN 15R 0151 47W 0009 56W 0011 0013 0018 0019 58X 0004 83V 0235 0280 0292 ABD 0210 ABQ 0216 0257 ACA 0170 AFR 0029 0078 0084 0186 0207 0237 0245 0246 0260 0307 0310 0377 0399 AIB 0131 0141 0161 0182 0302 0318 0332 ALK 0032 0033 0034 0367 0374 0381 ARG 0048 0063 0074 0080 0085 0093 0094 0123 0126 0128 0373 CAL 0402 0406 0411 0415 0433 0541 CCA 0192 0199 0201 0242 0243 0264 CPA 0136 0137 0142 0147 0157 0160 0208 0218 0220 0227 0228 DGA 0075 0081 DLH 0024 0027 0028 0035 0052 0053 0135 0158 0213 0233 0252 0297 0304 0321 0325 0327 0335 0347 0352 0354 0379 0390 0434 0447 FIN 0058 0168 0174 0835 0844 0921 0938 GAF 0274 0355 GFA 0212 0215 0282 0554 HFY 0117 0133 0190 0202 IBE 0005 0088 0125 0134 0145 0146 0193 0217 0221 0329 0387 0414 0459 0474 0483 IRC 0002 IRM 0020 0056 KAC 0089 0090 0101 0104 LAN 0167 0359 0363 0429 0442 M3R 0061 MAU 0076 0152 0194 0268 0793 0800 MDG 0319 MSR 0156 0159 0178 NMB 0047 0051 PAL 0173 0176 0187 0196 QAF 0026 0528 RJA 0014 0022 0038 0043 S3R 0204 SAA 0006 0197 0378 0544 0582 0590 0643 0646 0651 SAS 0413 0424 0430 0435 0450 0467 0470
DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 2 5

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# @A340 SERVICE BULLETIN

OPERATOR MSN SFB 0046 SLM 0049 SVW 0955 SWR 0150 0154 0169 0175 0179 0263 0538 0545 0546 0556 0559 0561 0562 0585 0598 TAP 0041 0044 0079 0091 THT 0385 0395 0438 0446 0668 THY 0023 0025 0057 0115 0180 0270 0331 UAE 0139 0149 0163 0166 0185 0236 VCV 0031 VIR 0114 0164 0214 0225 XAX 0273 0278 (4) Configuration by MSN MSN CONFIGURATION 0002 0004 0005 0006 0009 0011 0013 0014 0018 0019 0020 0022 0023 0024 0025 0026 0027 0028 0029 0031 0032 0033 0034 0035 0038 0041 0043 0044 0046 0047 0048 0049 0051 0052 0053 0056 0057 0058 0061 0063 0074 0075 0076 0078 0079 0080 0081 0084 0085 0088 0089 0090 0091 0093 0094 0101 0104 0114 0115 0117 0123 0125 0126 0128 0131 0133 0134 0135 0136 0137 0139 0141 0142 0145 0146 0147 0149 0150 0151 0152 0154 0156 0157 0158 0159 0160 0161 0163 0164 0166 0167 0168 0169 0170 0173 0174 0175 0176 0178 0179 0180 0182 0185 0186 0187 0190 0192 0193 0194 0196 0197 0199 0201 0202 0204 0207 0208 0210 0212 0213 0214 0215 0216 0217 0218 0220 0221 0225 0227 0228 0233 0235 0236 0237 0242 0243 0245 0246 0252 0257 0260 0263 0264 0268 0270 0273 0274 0278 0280 0282 0292 0297 0302 0304 0307 0310 0318 0319 0321 0325 0327 0329 0331 0332 0335 0347 0352 0354 0355 0359 0363 0367 0373 0374 0377 0378 0379 0381 0385 0387 0390 0395 0399 0402 0406 0411 0413 0414 0415 0424 0429 0430 0433 0434 0435 0438 0442 0446 0447 0450 0459 0467 0470 0474 0483 0528 0538 0541 0544 0545 0546 0554 0556 0559 0561 0562 0582 0585 0590 0598 0643 0646 0651 0668 0793 0800 0835 0844 0921 0938 0955 001

(5) Configuration definition **CONF 001 Config. 001 is valid for all the aircraft given in the effectivity of this Service Bulletin as a standard configuration. (6) Material Effectivity MATERIAL QTY PER A/C SEE NOTES Consumable CMLA01 1

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 3 5

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# @A340 SERVICE BULLETIN
B. CONCURRENT REQUIREMENTS None 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 A340-200/300 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 274175-832-801-001: Inspection (1) Do a Detailed Inspection of the THSA Ballscrew

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 4 5

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# @A340 SERVICE BULLETIN Task 274175-833-801-001: Repair (1) Replace the Trimmable Horizontal Stabilizer Actuator (THSA) 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 274175-220-001 001 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 274175-220-001 001 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 5 5

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# @A340 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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 274175-833-801 001 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 6 5

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# @A340 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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 274175-833-801 001 Repair Before next flight

If THSA is not replaced by PN 47147-500 or 47147-700: None *

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 7 5

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# @A340 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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 274175-833-801 001 Repair Before 10 days

If THSA is not replaced by PN 47147-500 or 47147-700: None *

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 8 5

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# @A340 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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 274175-833-801 001 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. A340-27-4178 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. A340-27-4187. 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 Aviation Safety Agency (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 Approval No. EASA.21J.031.

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 9 5

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# @A340 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 274175-832-801-001: Inspection Get Access 2.00 Close-Up 2.00 TOTAL MANHOURS 4.00 ELAPSED TIME (HOURS) 4.00 Additional manhours related to Vendor SB; refer to: Do a Detailed Inspection of the THSA Ballscrew Goodrich Actuation Systems Service Bulletin No. 47147-27-18 Task 274175-833-801-001: 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) A340-27-4178 A340-27-4187 Vendor Service Bulletin (VSB) Goodrich Actuation Systems Service Bulletin No. 47147-27-18 DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 10 5

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# @A340 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 11 5

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# @A340 SERVICE BULLETIN

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# @A340 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

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# @A340 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 14 5

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# @A340 SERVICE BULLETIN
3. ACCOMPLISHMENT INSTRUCTIONS Task 274175-832-801-001 - 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 274175-910-001-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 15 5

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# @A340 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 274175-839-001-001 - 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 274175-941-001-001 - 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 274175-010-001-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 16 5

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# @A340 SERVICE BULLETIN
C. PROCEDURE (1) Subtask 274175-220-001-001 - 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) A340-27-4178 A340-27-4187 Vendor Service Bulletin (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. A340-27-4178 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. A340-27-4187

. (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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 17 5

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# @A340 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 274175-833-801 001 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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. A340-27-4178 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. A340-27-4187. <b> Send the Appendix 01 - Inspection Report .

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 18 5

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# @A340 SERVICE BULLETIN
<2> If the test is not correct : <a> Before next flight, replace the THSA FIN 1CS, refer to TASK 274175-833-801 001 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (or -400 new) or within 3 months after SB issuance whichever occurs later. [2] If replacement THSA is replaced by 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. A340-27-4178 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. A340-27-4187. <b> Send the Appendix 01 - Inspection Report .

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 19 5

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# @A340 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 274175-833-801 001 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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. A340-27-4178 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. A340-27-4187. <b> Send the Appendix 01 - Inspection Report .

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 20 5

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# @A340 SERVICE BULLETIN
<2> If the test is not correct : <a> Before next flight, replace the THSA FIN 1CS, refer to TASK 274175-833-801 001 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 PN 47147-400 (or -400 new) but no later than 13 years since retrofit into PN 47147-400 (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. A340-27-4178 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. A340-27-4187. <b> Send the Appendix 01 - Inspection Report . D. TEST None E. CLOSE-UP (1) Subtask 274175-410-001-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 21 5

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# @A340 SERVICE BULLETIN (2) Subtask 274175-942-001-001 - 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 aircraft to normal operating condition.

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 22 5

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# @A340 SERVICE BULLETIN Task 274175-833-801-001 - 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 274175-910-002-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 23 5

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# @A340 SERVICE BULLETIN

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 274175-839-002-001 - 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 274175-941-002-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 24 5

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# @A340 SERVICE BULLETIN (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 274175-960-001-001 - 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 274175-720-001-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 25 5

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# @A340 SERVICE BULLETIN (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 274175-942-002-001 - 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.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 26 5

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# @A340 SERVICE BULLETIN

**CONF ALL

− Z311 Z312 1CS 

### A

312AR FR87

FR80



### B 

## A

**NOTE:** AREA TO BE INSPECTED 01 01



## B

F_SB_274175_5_BAAA_01_00 Figure A-FBAAA - Sheet 01 Inspection Area
DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 27 5

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# @A340 SERVICE BULLETIN

**CONF ALL

AT THE THRESHOLD GIVEN IN THE PLANNING INFORMATION PARAGRAPH E.(2). REFER TO SUBTASK 274175−220−001−001. 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 OK YES 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 274175−833−801−001 REFER TO TASK 274175−833−801−001 REFER TO TASK 274175−833−801−001 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 NO YES

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) NO YES

REPLACE THE THSA BEFORE NEXT FLIGHT 01

01

**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 27−4178 OR IN 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 27−4187. F_SB_274175_5_FAAA_01_09 Figure A-FFAAA - Sheet 01 Flow Chart
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# @A340 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 department SEEL6, on the attached inspection report sheet.

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 1 5

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# @A340 SERVICE BULLETIN Appendix 01 - Inspection Report

**CONF ALL **INSPECTION REPORT** SERVICE BULLETIN No. : A/C MSN : FLIGHT CYCLES : FLIGHT HOURS : A340−27−4175

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 YES TYPE 2 TYPE 3 NO YES NO YES NO YES NO N/A N/A 312AR

F_SB_274175_5_RAAA_01_04 Figure A-FRAAA - Sheet 01 Inspection Report
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# @A340 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 concerned (as per SB effectivity by default) and planned dates (month/year) of embodiment:

B - SB HAS BEEN embodied on aircraft: Operator comments:
From Airline: Name/Title: Signature: Date: If operational documentation is affected (see Paragraph 1.K of this SB): If information is needed prior to next normal revision or prior to SB embodiment, please indicate required service(s): Either: Modification Operational Impact (MOI), if available YES/NO Or : Intermediate revision YES/NO Important Information: This SB will only be incorporated in your maintenance and operational documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With the next feasible revision, this will result in - Updating of maintenance documentation to show pre and post SB data. - Updating of maintenance and operational documentation to show post SB data after embodiment. If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically include them in the manual revisions. Refer to SIL 00-037 for detailed information. Please return this completed sheet to: AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Attn: SDC32 Technical Data and Documentation Services FAX: (+33) 5 61 93 28 06 e-mail: sb.reporting@airbus.com or via your Resident Customer Support Office. Alternatively, SB lists via letters or fax are also accepted.

DATE: Feb 14/12 SERVICE BULLETIN No.: A340-27-4175 REVISION No.: 01 - Jun 13/13 Page: 1 5

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# @A340 SERVICE BULLETIN QUALITY PERCEPTION FORM Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data that you provide us will be used to analyse areas of difficulties and to take corrective action to further improve the quality of our Service Bulletins. We thank you for the time you have taken in completing this form. (Please rate on a scale of 1 to 4, with 4 being the highest score) - Quality rating of this SB 4321 - Quality rating of the Accomplishment Instructions 4321 - Quality rating of the Illustrations 4321 - Is this SB easy to understand ? Y/N If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a short description of the issue. Planning Material Instructions X Effectivity X Kit content X Preparation X Reason X List of Materials Operator Supplied X Mod/Inspection X Manpower X Industry support X Test X References X Re-identification X Close-Up X Publication X Tooling X Illustrations Comments:

Operator: Date: Name/Title: Please return this form to: AIRBUS CUSTOMER SERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNAC CEDEX FRANCE Attn : SEM4 Service Bulletins Management FAX : (33) 5 61 93 42 51 Or via your Resident Customer Support Office.

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