A330

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

ATA SYSTEM : 27

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

This page transmits Revision No. 08 of Service Bulletin No. A330-27-3102

ADDITIONAL WORK

No additional work is required by this revision for aircraft modified by any previous issue.

REASON

This Revision is issued to divide this Service Bulletin into :

- Config. 01 is for aircraft without Service Bulletin No. A330-27-3137 (for THSA PN 47172-XXX)

accomplished.

- Config. 02 is for aircraft with Service Bulletin No. A330-27-3137 accomplished and without Service

Bulletin No. A330-92-3046 accomplished.

CHANGES

SUMMARY :

- REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

. Sentence added.

- MANPOWER

. References to Configs. 01 and 02 added.

- Figure

. Reference to Config. 01 added.

- Figure

. Figure for Config. 02 added.

PLANNING INFORMATION :

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1 of 3

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

- EFFECTIVITY

. 1.A. NOTES added.

- History

. 1.C.(1) Sentence added.

- DESCRIPTION

. 1.D. Reference to Config. 01 and Worksteps for Config. 02 added.

. 1.D.(1)(d) Workstep added.

- COMPLIANCE

- Accomplishment Timescale

. 1.E.(2) Sentence added.

- MANPOWER

. 1.G. Reference to Configs. 01 and 02 added.

- REFERENCES

. 1.J. References to Service Bulletins added.

ACCOMPLISHMENT INSTRUCTIONS :

- Preparation

. 3.A.(1) Reference to Configs. 01 and 02 added.

. 3.A.(1)(a)6 Text amended.

- INSPECTION

. 3.B. Reference to Config. 01 and Worksteps for Config. 02 added.

- CLOSE-UP

. 3.D. Reference to Configs. 01 and 02 added.

- Figure 2

. detail updated.

- Figure 3

. New Figure for Config. 02 added.

- Figure 4

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 2

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

. Figure for inspection of the Checkable Shear-Pins added.

NOTE : Layout changes due to computerization of this revision are not identified.

FILING INSTRUCTIONS

This Service Bulletin has been generated electronically and is reissued as a complete document.

Replace the complete document.

Put this Revision Transmittal Sheet in front of the Service Bulletin.

HISTORY OF PREVIOUS REVISIONS

Refer to the previous issues of AOT 27A3102.

- The AOT 27A3102 was issued on May 30/02 to inform the operators about a repetitive inspection to

be performed on the ball screw assy for integrity of the primary and secondary load path.

- The AOT 27A3102 was revised on Jul 25/02 to provide operators with a simpler Inspection procedure

and clearer GO/NOGO criteria.

Revision No. 02 was issued to supersede AOT 27A3102 Rev. 01 (dated Jul 25/02).

Revision No. 03 was issued to extend the effectivity and to amend worksteps in the para. preparation.

Revision No. 04 was issued to correct the AMM reference, to add the inspection procedure for

RH THS/THSA lower attachment and to change the inspection procedure from THS/THSA lower

attachment to LH THSA.

Revision No. 05 was issued to :

- extend the effectivity to all A330-200 until MSN 0650 and A330-300 until MSN 0648.

Revision No. 06 was issued to :

- extend the effectivity up to aircraft MSN 0758,

- update the preparation para.

Revision No. 07 was issued to update the Effectivity.

ORIGINAL : May 30/02

REVISION No. : 01 - Jul 25/02

REVISION No. : 02 - Nov 07/02

REVISION No. : 03 - Jun 06/03

REVISION No. : 04 - Dec 08/03

REVISION No. : 05 - Jul 07/04

REVISION No. : 06 - Dec 16/05

REVISION No. : 07 - Mar 16/07

REVISION No. : 08 - Dec 06/07

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 3

Printed in France © AIRBUS 2007 All rights reserved

A330

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

MANDATORY MANDATORY MANDATORY MANDATORY

ATA SYSTEM : 27

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

The THSA (Trimmable Horizontal Stabilizer Actuator) comprises a ball nut, which forms the primary load

path and a threaded nut as a secondary load path. Both run on the screw shaft. In case of failure of the

primary load path, loads are transferred to the secondary one. When the secondary nut is loaded, the

friction increases between the titanium nut and steel screw due to material characteristics. Investigations

of the THSA transfer tube have indicated that the THSA secondary nut does not lock the THSA after few

movements as expected under certain cyclic load conditions but continues to operate with high friction which

results in damage to the screw and the secondary nut. Operation of the secondary load path is detected by

the Flight Control Primary Computers (FCPC) if the THSA efficiency decreases to such an extent that the

position error monitoring threshold is exceeded. If this condition remains undetected, a primary load path

failure may result in damage to the screw and secondary nut and, in extreme cases, in failure of the actuator.

Accomplishment of this Service Bulletin is mandatory as per the latest issue of Consigne de Navigabilite (CN)

(Airworthiness Directive (AD)) No. F-2002-414(B).

This Service Bulletin is not applicable for aircraft with the CSP-System electrical connected to the FCPCs. It

means that this Service Bulletin is not applicable for aircraft having accomplished Service Bulletin No.

A330-92-3046 and Service Bulletin No. A330-27-3137 (for THSA PN 47172-XXX).

This Service Bulletin which replaces AOT 27A3102 Rev. 01 (dated Jul 25/02) introduces a repetitive detailed

visual inspection of the THSA ball screw assy and a check of the gap between the secondary tenons and the

transfer plates with a feeler gage. The THSA must be replaced before next flight if cracks, distortion, dents or

corrosion are found on the screw shaft, gimbal, fail safe plates, transfer plates, ball nut body, return tubes or

collar, or if the feeler gage has failed at any 4 gaps.

The inspection detailed in this Service Bulletin has to be repeated at intervals not exceeding 700 FH.

The accomplishment of this Service Bulletin will ensure the reliable function of the THSA.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1 of 5

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

SUMMARY

EVALUATION TABLE

COMPLIANCE Mandatory CANCELS INSPECTION SB No

AD F-2002-414(B) A/C OPERATION AFFECTED No

RELIABILITY AFFECTED Yes PAX COMFORT AFFECTED No

COST SAVING No ETOPS AFFECTED No

STRUCTURAL LIFE EXTN No VENDOR SB INVOLVED No

KIT PRICE (USD) No Kit

EFFECTIVITY

This Service Bulletin is applicable to these operator(s) :

99Y AAR ACA ACI AEA AFR ALK AUA AWW BMA CAL CCA CES CPA CRL CSN CYP DAH DAT DLH

EDW EEZ EIN ETD EVA FWI GFA GIA GRL HDA HFY HVN I2L IWD IYE JAI JST KAL KLM LTU LVG

MAS MEA MON MSR MYT NVR NWA OBS PAL QAF QFA QTR SAS SSV SWR TAM TAP TCX THA

THY TSC UAE USA VKG XLF

CONCURRENT REQUIREMENTS

None

REFERENCES/REPERCUSSIONS

TFU : 27.44.51.008

OEB : None

AOT : 27A3102

SIL : None

LIFE LIMIT : None

LINE MAINTENANCE AFFECTED : No

OTHERS : None

NATURE OF THE WORK

AIRCRAFT : YES

EQUIPMENT : NO

HARD : NO

SOFT : NO

OBRM : NO

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 2

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

SUMMARY

MANPOWER

Config. 01 thru Config. 02

TOTAL MANHOURS 1.00

ELAPSED TIME (HOURS) 1.00

MATERIAL INFORMATION

AIRCRAFT DATA

None

APPENDICES

Refer to Appendix 1 - Report Sheet

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 3

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

SUMMARY

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 4

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

SUMMARY

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 5

Printed in France © AIRBUS 2007 All rights reserved

A330

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

MANDATORY MANDATORY MANDATORY MANDATORY

ATA SYSTEM : 27

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

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 the 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

A. EFFECTIVITY

(1) Models

330-202 330-203 330-223 330-243 330-301 330-302 330-303 330-321 330-322 330-323

330-341 330-342 330-343

(2) Aircraft

(a) Effectivity by MSN

This Service Bulletin is applicable to aircraft MSN :

0012 0017 0030 0037 0045 0050 0054 0055 0059 0060 0062 0064-0067 0069-0073

0077 0082 0083 0086 0087 0095 0096 0098-0100 0102 0106 0107 0109-0113 0116

0118-0122 0127 0132 0138 0140 0143 0144 0148 0153 0155 0162 0165 0171 0172

0177 0181 0183 0184 0188 0189 0191 0195 0198 0200 0203 0205 0206 0209 0211

0219 0222-0224 0226 0229-0232 0234 0238 0240 0241 0244 0247-0251 0253-0256

0258 0259 0261 0262 0265-0267 0269 0271 0272 0275-0277 0279 0281 0283-0288

0290 0291 0293-0296 0299-0301 0303 0305 0306 0308 0309 0311-0317 0320

0322-0324 0326 0328 0330 0333 0334 0337-0340 0342-0346 0348-0351 0353

0356-0358 0361 0362 0364-0366 0368-0370 0372 0375 0380 0382 0384 0386 0388

0389 0392 0393 0396-0398 0400 0401 0403-0405 0407-0409 0412 0418-0423 0425

0427 0428 0432 0437 0439 0441 0443 0444 0448 0451 0452 0454-0456 0458

0461-0463 0465 0466 0469 0472 0473 0476 0477 0479-0481 0484 0486 0487

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1 of 26

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A330

SERVICE BULLETIN

0489-0491 0493 0494 0496-0498 0500-0513 0515 0516 0518 0519 0521 0522

0524-0527 0529 0530 0532 0533 0535 0536 0539 0542 0548-0553 0555 0558 0564

0565 0567 0568 0570 0571 0573 0574 0576 0578 0579 0581 0584 0587 0588 0591

0593 0595 0597 0600 0602 0603 0605 0607 0609 0610 0612 0614 0616 0618 0620

0621 0623 0625 0627 0629 0631-0638 0640-0642 0644 0645 0647-0650 0652-0667

0669-0671 0673-0676 0678-0680 0682-0684 0686-0688 0690-0693 0695-0697

0699-0701 0703-0705 0707-0709 0711-0714 0716-0718 0720-0722 0724-0726

0728-0730 0732-0735 0737-0739 0741-0743 0745-0747 0749-0752 0754-0756

0758-0760 0769 0770 0772-0774 0776-0778 0780-0782 0784-0786 0788 0789

0791 0792 0795-0797 0799 0801-0803

(b) 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

99Y 0747

AAR 0640 0676 0708 0772 0803

ACA 0277 0279 0284 0344 0400 0408 0412 0419

ACI 0507 0510

AEA 0733 0745 0749

AFR 0422 0443 0448 0458 0465 0481 0498 0500 0502 0503 0516

0519 0567 0584 0657 0660

ALK 0303 0306 0311 0313

AUA 0181 0195 0223 0317

AWW 0054

BMA 0398 0401 0404

CAL 0602 0607 0641 0671 0675 0691 0699 0707 0714 0725 0752 0769

CCA 0750 0756 0759 0780 0785 0797

CES 0713 0720 0728 0732 0735 0773 0777 0781 0782 0791

CPA 0012 0017 0071 0083 0099 0102 0109 0113 0118 0121 0155

0244 0386 0389 0393 0418 0420 0421 0423 0439 0539 0548

0565 0669 0673 0679 0776

CRL 0285 0320

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 2

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A330

SERVICE BULLETIN

OPERATOR MSN

CSN 0649 0652 0656 0664

CYP 0505 0526

DAH 0644 0647 0650 0653 0667

DAT 0030 0037 0045 0082

DLH 0570 0576 0579 0629 0636 0642 0645 0648 0687 0701

EDW 0369

EEZ 0358 0364 0665 0802

EIN 0055 0059 0070 0086 0269 0330 0397

ETD 0272 0339 0658 0688 0717 0724 0729 0730 0737 0788

EVA 0530 0535 0555 0573 0587 0634 0655 0661 0678 0693 0755

FWI 0240 0253 0758

GFA 0276 0281 0286 0287 0334 0340

GIA 0138 0140 0144 0148 0153 0165

GRL 0230

HDA 0098 0106 0132 0177 0234 0405 0407 0479 0512 0581 0654

0662 0692 0716 0741 0786

HFY 0096

HVN 0087 0255 0262

I2L 0205 0211

IWD 0072 0670

IYE 0625 0632

JAI 0751

JST 0506 0508 0513 0522

KAL 0162 0172 0206 0219 0222 0226 0241 0256 0258 0267 0338 0350

0351 0368 0425 0428 0484 0490 0550

KLM 0682 0686 0703 0738 0770 0801

LTU 0120 0127 0171 0403 0432 0444 0454 0469 0476 0493 0739

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 3

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

OPERATOR MSN

LVG 0551 0597 0627

MAS 0067 0069 0073 0077 0095 0100 0107 0110 0116 0119 0143

0290 0296 0300

MEA 0527 0529 0532

MON 0261 0265

MSR 0600 0610 0666 0683 0696 0709 0726

MYT 0254 0266 0301 0309

NVR 0353 0362

NWA 0524 0533 0542 0549 0552 0578 0588 0591 0609 0614 0618 0620

0621 0631 0633 0663 0674 0690 0718 0722 0778 0784 0796 0799

OBS 0461

PAL 0183 0184 0188 0189 0191 0198 0200 0203

QAF 0487 0605

QFA 0553 0558 0564 0574 0593 0595 0603 0695 0705 0712

QTR 0441 0463 0473 0489 0504 0511 0521 0571 0612 0616 0623 0637

0638 0659 0680 0684 0711 0721 0734 0743 0746 0760 0789 0792

SAS 0496 0497 0515 0568

SSV 0357

SWR 0229 0249 0275 0288 0291 0294 0299 0322 0324 0343 0366

TAM 0232 0238 0247 0259 0361 0466 0472 0477 0486 0700

TAP 0305 0308 0312

TCX 0427 0456 0795

THA 0050 0060 0062 0064 0065 0066 0112 0122 0209 0224 0231 0346

THY 0697 0704 0742 0754 0774

TSC 0111 0250 0271 0480

UAE 0248 0251 0283 0293 0295 0314 0316 0326 0328 0345 0348 0365

0372 0382 0384 0392 0396 0409 0437 0451 0452 0455 0462 0491

0494 0509 0518 0525 0536

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 4

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

OPERATOR MSN

USA 0315 0323 0333 0337 0342 0370 0375 0380 0388

VKG 0349 0356

XLF 0501 0635

(c) Effectivity by MSN and Kit/Configuration

The Kits and configurations applicable to these MSNs are given at the end of this list

0012 0017 0030 0037 0045 0050 0054-0055 0059-0060 0062 0064-0067 0069-0073

0077 0082-0083 0086-0087 0095-0096 0098-0100 0102 0106-0107 0109-0113

0116 0118-0122 0127 0132 0138 0140 0143-0144 0148 0153 0155 0162 0165

0171-0172 0177 0181 0183-0184 0188-0189 0191 0195 0198 0200 0203 0205-0206

0209 0211 0219 0222-0224 0226 0229-0232 0234 0238 0240-0241 0244 0247-0251

0253-0256 0258-0259 0261-0262 0265-0267 0269 0271-0272 0275-0277 0279

0281 0283-0288 0290-0291 0293-0296 0299-0301 0303 0305-0306 0308-0309

0311-0317 0320 0322-0324 0326 0328 0330 0333-0334 0337-0340 0342-0346

0348-0351 0353 0356-0358 0361-0362 0364-0366 0368-0370 0372 0375 0380 0382

0384 0386 0388-0389 0392-0393 0396-0398 0400-0401 0403-0405 0407-0409

0412 0418-0423 0425 0427-0428 0432 0437 0439 0441 0443-0444 0448 0451-0452

0454-0456 0458 0461-0463 0465-0466 0469 0472-0473 0476-0477 0479-0481 0484

0486-0487 0489-0491 0493-0494 0496-0498 0500-0513 0515-0516 0518-0519

0521-0522 0524-0527 0529-0530 0532-0533 0535-0536 0539 0542 0548-0553

0555 0558 0564-0565 0567-0568 0570-0571 0573-0574 0576 0578-0579 0581

0584 0587-0588 0591 0593 0595 0597 0600 0602-0603 0605 0607 0609-0610 0612

0614 0616 0618 0620-0621 0623 0625 0627 0629 0631-0638 0640-0642 0644-0645

0647-0650 0652-0667 0669-0671 0673-0676 0678-0680 0682-0684 0686-0688

0690-0693 0695-0697 0699-0701 0703-0705 0707-0709 0711-0714 0716-0718

0720-0722 0724-0726 0728-0730 0732-0735 0737-0739 0741-0743 0745-0747

0749-0752 0754-0756 0758-0760 0769-0770 0772-0774 0776-0778 0780-0782

0784-0786 0788-0789 0791-0792 0795-0797 0799 0801-0803

KIT No. QTY PER A/C CONFIGURATION

None 01

None 02

NOTE(01) Config. 01 is valid for aircraft without Service Bulletin No. A330-27-3137

(for THSA PN 47172-XXX) accomplished.

NOTE : Config. 02 is valid for aircraft with Service Bulletin No. A330-27-3137

accomplished and without Service Bulletin No. A330-92-3046

accomplished.

(3) Spares

None

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 5

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A330

SERVICE BULLETIN

B. CONCURRENT REQUIREMENTS

None

C. REASON

(1) History

The THSA (Trimmable Horizontal Stabilizer Actuator) comprises a ball nut, which forms the

primary load path and a threaded nut as a secondary load path. Both run on the screw

shaft. In case of failure of the primary load path, loads are transferred to the secondary

one. When the secondary nut is loaded, the friction increases between the titanium nut and

steel screw due to material characteristics. Investigations of the THSA transfer tube have

indicated that the THSA secondary nut does not lock the THSA after few movements as

expected under certain cyclic load conditions but continues to operate with high friction

which results in damage to the screw and the secondary nut. Operation of the secondary

load path is detected by the Flight Control Primary Computers (FCPC) if the THSA

efficiency decreases to such an extent that the position error monitoring threshold is

exceeded. If this condition remains undetected, a primary load path failure may result in

damage to the screw and secondary nut and, in extreme cases, in failure of the actuator.

Accomplishment of this Service Bulletin is mandatory as per the latest issue of Consigne de

Navigabilite (CN) (Airworthiness Directive (AD)) No. F-2002-414(B).

This Service Bulletin is not applicable for aircraft with the CSP-System electrical connected

to the FCPCs. It means that this Service Bulletin is not applicable for aircraft having

accomplished Service Bulletin No. A330-92-3046 and Service Bulletin No. A330-27-3137

(for THSA PN 47172-XXX).

(2) Objective/Action

This Service Bulletin which replaces AOT 27A3102 Rev. 01 (dated Jul 25/02) introduces a

repetitive detailed visual inspection of the THSA ball screw assy and a check of the gap

between the secondary tenons and the transfer plates with a feeler gage. The THSA must

be replaced before next flight if cracks, distortion, dents or corrosion are found on the screw

shaft, gimbal, fail safe plates, transfer plates, ball nut body, return tubes or collar, or if

the feeler gage has failed at any 4 gaps.

The inspection detailed in this Service Bulletin has to be repeated at intervals not

exceeding 700 FH.

(3) Advantages

The accomplishment of this Service Bulletin will ensure the reliable function of the THSA.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 6

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

(1) Config. 01

(a) Do a detailed visual inspection

(b) Check the gap between the secondary nut tenons and the transfer plates with a

feeler gage

(c) Assessment criteria

(d) Repeat the check at intervals not exceeding 700 FH.

(2) Config. 02

(a) Do a detailed visual inspection

(b) Do a detailed inspection of the checkable shear-pins.

(c) Assessment criteria

(d) Repeat the check at intervals not exceeding 700 FH.

E. COMPLIANCE

(1) Classification

Mandatory

(2) Accomplishment Timescale

Accomplishment of this Service Bulletin is mandatory as per the latest issue of Consigne de

Navigabilite (CN) (Airworthiness Directive (AD)) No. F-2002-414(B).

Accomplishment of this revision is expected to be rendered mandatory by the issue of an

Airworthiness Directive (AD) published by the European Aviation Safety Agency (EASA).

It is anticipated that the applicable AD will confirm the existing threshold and interval,

but reference should be made to the applicable AD for confirmation of the mandated

accomplishment timescale.

F. APPROVAL

Approved under EASA Design Organisation Approval No. EASA 21J.031.

If an aircraft listed in the effectivity has a modification or repair embodied that is not of AIRBUS

origin, and which affects the content of this Service Bulletin, the operator is responsible for

obtaining approval by its airworthiness authority for any adaptation necessary before incorporation

of the Service Bulletin.

G. MANPOWER

The manpower estimates given in this Service Bulletin are based on the direct labor cost to do the

work. These estimates assume that the work will be done by experienced personnel, and may

need to be revised upwards to suit operators’ circumstances. The estimates do not include the

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 7

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A330

SERVICE BULLETIN

time to prepare, plan or inspect the work. Manufacture and procurement of parts and tools, drying

time for paints, sealants, etc. and general administration work are also not included.

Config. 01 thru Config. 02

Get Access 0.25

Inspection 0.50

Close-up 0.25

TOTAL MANHOURS 1.00

ELAPSED TIME (HOURS) 1.00

H. WEIGHT AND BALANCE

Not changed

I. ELECTRICAL LOAD DATA

Not changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) : 12-34-24 24-42-00 27-40-00 27-44-00

27-44-51 29-00-00 29-14-00

Elec. Std. Practices Manual (ESPM) : 20-55-00

Appendix 1

Airworthiness Directive (AD) F-2002-414(B)

Service Bulletin No. A330-27-3137

Service Bulletin No. A330-92-3046

K. PUBLICATIONS AFFECTED

Aircraft Maintenance Manual (AMM) : 27-44-51

L. INTERCHANGEABILITY/MIXABILITY

Not applicable

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 8

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A330

SERVICE BULLETIN

2. MATERIAL INFORMATION

A. MATERIAL - PRICE AND AVAILABILITY

None

B. INDUSTRY SUPPORT INFORMATION

AIRBUS will not provide industrial support for accomplishment of this Service Bulletin.

C. LIST OF COMPONENTS

None

D. LIST OF MATERIALS - OPERATOR SUPPLIED

None

E. PARTS TO BE RE-IDENTIFIED BY THE OPERATOR

None

F. TOOLING - PRICE AND AVAILABILITY

None

G. SPECIAL TOOLS

None

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 9

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SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 10

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A330

SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL

WARNING : MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS

INCLUDED IN THE REFERENCED PROCEDURES.

WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS

ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO

PERSONS AND/OR DAMAGE.

WARNING : MAKE SURE THAT SAFETY DEVICES AND THE WARNING NOTICES ARE IN

POSITION BEFORE YOU START A TASK ON OR NEAR :

- THE FLIGHT CONTROLS,

- THE FLIGHT CONTROL SURFACES,

- THE LANDING GEAR AND THE RELATED DOORS,

- COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR INJURE PERSONS.

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 ELECTRICAL WIRING AND COMPONENTS

- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND OTHER

CONTAMINATION.

THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION AND

DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.

IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00.

(1) Preparation

(a) Config. 01 thru Config. 02

1 Make sure that the aircraft is electrically grounded, refer to AMM 12-34-24,

Page block 201.

2 Energize the aircraft electrical circuits, refer to AMM 24-42-00, Page block 201.

3 Move the THS actuator in the 0 deg. position, refer to AMM 27-40-00, Page

block 201.

4 Depressurize the Blue, Green and Yellow hydraulic systems, refer to AMM

29-00-00, Page block 201.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 11

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A330

SERVICE BULLETIN

5 Depressurize the reservoirs of the Blue, Green and Yellow hydraulic systems,

refer to AMM 29-14-00, Page block 201.

6 Put the warning notices in the cockpit to tell persons :

- Not to pressurize the Blue, Green and Yellow hydraulic systems,

- Not to pressurize the reservoirs of the Blue, Green and Yellow hydraulic

systems,

- Not to operate the THS actuator.

7 Put the warning notices in position :

- On the panel 215VU, to tell persons not to start the APU,

- On the panel 990VU, to tell persons not to refuel the aircraft.

8 Put the access platform in position below the access door 312AR.

9 Open the access door 312AR and set the LIGHT switch 4LJ to the ON position.

10 Open, safety and tag this (these) circuit breaker(s) :

- refer to AMM 27-44-00, Page block 601

(2) Standard Practices

None

(3) Work Breakdown

None

B. INSPECTION

(1) Config. 01

(a) Do a detailed visual inspection

1 Visually inspect the ball screw assy

Refer to Figure 1

Refer to Figure 2

a Clean the THSA screw shaft, ball nut assy and its connection to the THSA

arms, refer to AMM 27-44-51, Page block 401, Figure "THS Arms Assembly".

b Inspect these items for absence of cracks, dents, corrosion, metallic debris,

loose nut, damaged or missing lock washers and pins :

Refer to Figure 1, Sheet 1, Detail B

1 screw shaft Item (6)

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 12

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A330

SERVICE BULLETIN

Refer to Figure 1, Sheet 2, Detail C

2 fail safe plate Item (1)

1 ball nut body Item (2)

1 gimbal Item (3)

2 transfer plate Item (4)

Refer to Figure 1, Sheet 2, Detail D

1 collar Item (7)

3 return tube Item (8)

2 Visually inspect the THS/THSA lower attachment LH

Refer to Figure 2, Sheet 1 and 2, Section D-D

a Inspect these items for presence of :

1 THS arm bush LH Item (15)

b Inspect these items of the ball screw assy for presence and correct

installation of ball screw assy to the THS arms.

1 cotter pin Item (17)

1 nut Item (18)

1 cap washer Item (19)

1 key washer Item (20)

1 bolt Item (21)

3 Visually inspect the THS/THSA lower attachment RH

Refer to Figure 2, Sheet 1 and 2, Section E-E

a Inspect these items for presence of :

1 THS arm bush RH Item (16)

b Inspect these items of the ball screw assy for presence and correct

installation of ball screw assy to the THS arms.

1 cap washer Item (19)

1 key washer Item (20)

1 bolt Item (21)

4 Visually inspect the ball nut to secondary nut interface

Refer to Figure 1, Sheet 1 and 2, Detail D

a Inspect the interface for presence of :

2 blind rivet Item (10)

4 drive pin Item (11)

b Inspect this item for integrity :

1 locking bush Item (9)

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 13

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A330

SERVICE BULLETIN

NOTE : The linkage plate may be deformed (static condition). This fact

does not impact THSA serviceability.

(b) Check the gap between the secondary nut tenons and the transfer plates with a

feeler gage

Refer to Figure 1, Sheet 2, Detail C

1 Make sure that the fixture strut PN 98A27407514004 is not installed.

NOTE : There is no specific requirement as for the position of the horizontal

stabilizer.

2 Check the gap at the secondary nut tenon

a Use a feeler gage 0.4 mm (0.016 in.) and check along the upper and

lower gap at the interface of :

2 secondary tenon Item (5)

to :

2 transfer plate Item (4)

The gage should move along freely between both surfaces.

(c) Assessment criteria

1 In case of findings by visual inspection

a Replace the THSA before next flight in case cracks, dents corrosion are

found on the parts inspected in Para. (1) (a) 1.

b Contact AIRBUS CUSTOMER SERVICES, ENGINEERING SERVICES,

FLIGHT CONTROL SYSTEMS, for damage assessment before next flight in

case of :

- metallic debris,

- loose nut,

- damaged or missing lock washers, pins and parts or

- incorrect installation of items,

found during the inspection of the parts mentioned in Para. (1) (a).

c Record the findings on the Report Sheet ref. Appendix 1.

2 In case of findings by checking the gap at the secondary nut tenons

a Replace the THSA before next flight if the feeler gage has failed at any

of the 4 gaps.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

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SERVICE BULLETIN

3 In case of no findings by visual inspection and gap checking at the secondary

nut tenons

a No further action is required.

(d) Repeat the check at intervals not exceeding 700 FH.

(2) Config. 02

(a) Do a detailed visual inspection

Refer to Figure 2

Refer to Figure 3

Refer to Figure 4

1 Visually inspect the ball screw assy

Refer to Figure 3

a Clean the THSA screw shaft, ball nut assy and its connection to the THSA

arms, refer to AMM 27-44-51, Page block 401, Figure "THS Arms Assembly".

b Inspect these items for absence of cracks, dents, corrosion, metallic debris,

loose nut, damaged or missing lock washers and pins :

Refer to Figure 3, Sheet 1, Detail B

1 screw shaft Item (6)

Refer to Figure 3, Sheet 2, Detail C

2 fail safe plate Item (1)

1 ball nut body Item (2)

1 gimbal Item (3)

2 transfer plate Item (4)

Refer to Figure 3, Sheet 2, Detail D

1 collar Item (7)

3 return tube Item (8)

2 Visually inspect the THS/THSA lower attachment LH

Refer to Figure 2, Sheet 1 and 2, Section D-D

a Inspect these items for presence of :

1 THS arm bush LH Item (15)

b Inspect these items of the ball screw assy for presence and correct

installation of ball screw assy to the THS arms.

1 cotter pin Item (17)

1 nut Item (18)

1 cap washer Item (19)

1 key washer Item (20)

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 15

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A330

SERVICE BULLETIN

1 bolt Item (21)

3 Visually inspect the THS/THSA lower attachment RH

Refer to Figure 2, Sheet 1 and 2, Section E-E

a Inspect these items for presence of :

1 THS arm bush RH Item (16)

b Inspect these items of the ball screw assy for presence and correct

installation of ball screw assy to the THS arms.

1 cap washer Item (19)

1 key washer Item (20)

1 bolt Item (21)

(b) Do a detailed inspection of the checkable shear-pins.

Refer to Figure 4, Sheet 2, Section A-A

Refer to AMM 27-44-51, Page block 601

1 If the dimension of both check buttons is 10 mm (0.394 in.) or less :

- no further action is required.

2 If the dimension of one or two check buttons is more than 10 mm (0.394 in.) :

- Replace the THSA before next flight.

(c) Assessment criteria

1 In case of findings by visual inspection

a Replace the THSA before next flight in case cracks, dents corrosion are

found on the parts inspected in Para. (2) (a) 1.

b Contact AIRBUS CUSTOMER SERVICES, ENGINEERING SERVICES,

FLIGHT CONTROL SYSTEMS, for damage assessment before next flight in

case of :

- metallic debris,

- loose nut,

- damaged or missing lock washers, pins and parts or

- incorrect installation of items,

found during the inspection of the parts mentioned in Para. (2) (a).

c Record the findings on the Report Sheet ref. Appendix 1.

(d) Repeat the check at intervals not exceeding 700 FH.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 16

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A330

SERVICE BULLETIN

C. TEST

None

D. CLOSE UP

(1) Config. 01 thru Config. 02

(a) Make sure that the work areas are clean and clear of tools and other items of

equipment.

(b) Set the LIGHT switch 4LJ to the OFF position and close the access door 312AR

(c) Remove the safety clip(s) and tag(s) and close this (these) circuit breaker(s) :

- refer to AMM 27-44-00, Page block 601.

(d) Remove the warning notices.

(e) Remove the access platform(s).

E. DOCUMENTATION

Write in the applicable aircraft records that you have done all the work given in this Service Bulletin.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 17

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A330

SERVICE BULLETIN

Figure 1, Sheet 1

Config. 01: Inspection of THS-Actuator Attachments, Screw Shaft, Primary and Secondary Nut

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 18

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A330

SERVICE BULLETIN

Figure 1, Sheet 2

Config. 01: Inspection of THS-Actuator Attachments, Screw Shaft, Primary and Secondary Nut

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 19

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

Figure 2, Sheet 1

Config. 01 thru 02: THS-Arm Assemblies

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 20

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

Figure 2, Sheet 2

Config. 01 thru 02: THS-Arm Assemblies

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 21

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A330

SERVICE BULLETIN

Figure 3, Sheet 1

Config. 02: Inspection of THS-Actuator Attachments, Screw Shaft, Primary and Secondary Nut

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 22

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

Figure 3, Sheet 2

Config. 02: Inspection of THS-Actuator Attachments, Screw Shaft, Primary and Secondary Nut

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 23

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A330

SERVICE BULLETIN

Figure 4, Sheet 1

Config. 02: Inspection of the Checkable Shear-Pins

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 24

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A330

SERVICE BULLETIN

Figure 4, Sheet 2

Config. 02: Inspection of the Checkable Shear-Pins

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 25

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A330

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 26

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SERVICE BULLETIN

APPENDIX 1

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

ATA SYSTEM : 27

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW OF THE PRIMARY AND SECONDARY

LOAD PATH

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1

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A330

SERVICE BULLETIN

APPENDIX 1

Figure 1, Sheet 1

Report Sheet

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 2

Printed in France © AIRBUS 2007 All rights reserved
A330

SERVICE BULLETIN

REPORTING SHEET

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

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 embodiement:

.............................................................................................................................................................................

.............................................................................................................................................................................

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 : Advance data................................................................................... YES/NO

Or : Intermediate/Temporary 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 : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1 of 1

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A330

SERVICE BULLETIN

REPORTING QUALITY

TITLE : FLIGHT CONTROLS - THSA - INSPECTION OF THE BALL SCREW ASSY FOR INTEGRITY OF

THE PRIMARY AND SECONDARY LOAD PATH

MODIFICATION No. : INSPECTION

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 futher 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 4 3 2 1

-Quality rating of the Accomplishment Instructions 4 3 2 1

-Quality rating of the Illustrations 4 3 2 1

-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 X Mod/Inspection

X Manpower Operator Supplied 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.

DATE : May 30/02 SERVICE BULLETIN No. : A330-27-3102

REVISION No. : 08 - Dec 06/07 Page : 1 of 1

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