@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.

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 27

TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER

ACTUATOR - BALLSCREW INTEGRITY CHECK

**CONF ALL

MODIFICATIONS

None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

The aim of the AMM Task 27-44-51-220-801 is to perform the integrity check of the Trimmable

Horizontal Stabilizer Actuator (THSA) ballscrew shaft (Primary and Secondary Load path).

Current AMM Task 27-44-51-220-801 checks the ballscrew shaft integrity by applying a differential

torque between the ballscrew (Primary Load path) and the tie bar (Secondary Load path).

This check is satisfactorily passed if there is a limited differential rotation between the primary and the

secondary load paths.

AMM Task 27-44-51-220-801 is called by the MRB task 274000-12 every 16,000FH.

Further to corrosion issue identified in service on THSA PN 47147-500 and 47147-700 at the level of

the ballscrew lower splines (which are loaded only in case of ballscrew rupture), an interval reduction of

the ballscrew integrity check is proposed as a protective action.

This Inspection Service Bulletin requires the application of the Ballscrew Integrity Check as per MRB

task 274000-12 on THSA PN 47147-500 and 47147-700 every 12,000 FH / 4,400 FC.

Accomplishment of this Service Bulletin will permit to ensure a reliable function of the THSA by

checking the ballscrew integrity.

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

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SERVICE BULLETIN

SUMMARY

EVALUATION TABLE

COST SAVING NO LROPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED NO

NOTE (1): Service Bulletin must be accomplished.

MATERIAL PRICE INFORMATION

No Material

EFFECTIVITY

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

47W 56W 83V AAW AFR ALK ARG CAL CCA CES CPA DGA DLH

FIN GAF GFA HFY IBE IRC KAC KNE 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 None

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER None

NATURE OF THE WORK

AIRCRAFT NO

EQUIPMENT YES

HARD NO

SOFT NO

OBRM NO

MANPOWER

Task 274186-832-801-001: Inspection

TOTAL MANHOURS 15.00

ELAPSED TIME (HOURS) 11.00

APPENDICES

Appendix 01 - Elapsed Time Assumptions

Appendix 02 - Inspection Report

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SERVICE BULLETIN

SUMMARY

**CONF ALL

FR87

FR80

A

B

1CS

B

312AR

A

Z310

PANEL

ACCESS

F_SB_274186_5_SAAA_01_01

Figure A-FSAAA - Sheet 01

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SERVICE BULLETIN

SUMMARY

This Page Intentionally Left Blank

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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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

ATA SYSTEM: 27

TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER

ACTUATOR - BALLSCREW INTEGRITY CHECK

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

0002-0006 0009 0011 0013-0015 0018-0029 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 0128-0129 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 0239 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

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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

47W 0009

56W 0003 0013 0015

83V 0235 0239 0280 0292

AAW 0151

AFR 0029 0078 0084 0186 0207 0237 0245 0246 0260 0307 0310 0377

0399

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

CES 0129 0131 0141 0161 0182

CPA 0136 0137 0142 0147 0157 0160 0208 0218 0220 0227 0228

DGA 0075 0081

DLH 0020 0024 0027 0028 0035 0052 0053 0056 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

IBE 0005 0088 0125 0134 0145 0146 0170 0193 0217 0221 0302 0318

0329 0332 0387 0414 0459 0474 0483

IRC 0002

KAC 0089 0090 0101 0104

KNE 0004

LAN 0167 0359 0363 0429 0442

M3R 0061

MAU 0076 0152 0194 0268 0793 0800

MDG 0210 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 0011 0018 0019 0021 0197 0378 0544 0582 0590 0643 0646

0651

SAS 0413 0424 0430 0435 0450 0467 0470

SFB 0046

SLM 0049

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SERVICE BULLETIN

OPERATOR MSN

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 0216 0257 0270 0331

UAE 0139 0149 0163 0166 0185 0190 0202 0236

VCV 0031

VIR 0114 0164 0214 0225

XAX 0273 0278

(4) Configuration by MSN

MSN CONFIGURATION

0002 0003 0004 0005 0006 0009 0011 0013 0014 0015 0018

0019 0020 0021 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 0129 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 0239 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

No Material Set

B. CONCURRENT REQUIREMENTS

None

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SERVICE BULLETIN

C. REASON

(1) History

The aim of the AMM Task 27-44-51-220-801 is to perform the integrity check of the

Trimmable Horizontal Stabilizer Actuator (THSA) ballscrew shaft (Primary and Secondary

Load path).

Current AMM Task 27-44-51-220-801 checks the ballscrew shaft integrity by applying a

differential torque between the ballscrew (Primary Load path) and the tie bar (Secondary

Load path).

This check is satisfactorily passed if there is a limited differential rotation between the

primary and the secondary load paths.

AMM Task 27-44-51-220-801 is called by the MRB task 274000-12 every 16,000FH.

Further to corrosion issue identified in service on THSA PN 47147-500 and 47147-700

at the level of the ballscrew lower splines (which are loaded only in case of ballscrew

rupture), an interval reduction of the ballscrew integrity check is proposed as a protective

action.

(2) Objective/Action

This Inspection Service Bulletin requires the application of the Ballscrew Integrity Check

as per MRB task 274000-12 on THSA PN 47147-500 and 47147-700 every 12,000 FH /

4,400 FC.

(3) Advantages

Accomplishment of this Service Bulletin will permit to ensure a reliable function of the

THSA by checking the ballscrew integrity.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 274186-832-801-001: Inspection

(1) Do a Special Detailed Inspection of the THSA Ballscrew

(2) Replace the Trimmable Horizontal Stabilizer Actuator (THSA)

E. COMPLIANCE

(1) Classification

MANDATORY: Service Bulletin must be accomplished.

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SERVICE BULLETIN

(2) Accomplishment Timescale

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

intervals given below but reference should be made to the AD for confirmation of the

mandated accomplishment timescale.

Table 1, all Config. - Special Detailed Inspection of the THSA Ballscrew

Compliance Time (Whichever occurs

latest)

Condition Action

Threshold

(Whichever occurs

latest)

Grace Period

Repetitive Interval

(Whichever occurs

first)

For THSA which

PN are not

47147-500 or

47147-700.

No further action None None None

For THSA which

PN are 47147-500

or 47147-700

having

accumulated less

than 11,000 FH

since the last

application of MRB

Task 274000-12 or

since aircraft first

flight whichever

occurs the latest.

Do SUBTASK

274186-280-001

001 Do a Special

Detailed Inspection

of the THSA

Ballscrew

12,000 FH since

the last application

of MRB task

274000-12 or since

aircraft first flight.

None None

For THSA which

PN are 47147-500

or 47147-700

having

accumulated

between 11,000

FH and 15,000 FH

since the last

application of MRB

Task 274000-12 or

since aircraft first

flight whichever

occurs the latest.

Do SUBTASK

274186-280-001

001 Do a Special

Detailed Inspection

of the THSA

Ballscrew

Within 1,000 FH None None

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SERVICE BULLETIN

For THSA which

PN are 47147-500

or 47147-700

having

accumulated more

than 15,000 FH

since the last

application of MRB

Task 274000-12 or

since aircraft first

flight whichever

occurs the latest.

Do SUBTASK

274186-280-001

001 Do a Special

Detailed Inspection

of the THSA

Ballscrew

16,000 FH since

the last application

of MRB task

274000-12 or since

aircraft first flight.

None None

If the Ballscrew

integrity test is

correct.

Repeat the

Inspection, refer to

TASK

274186-832-801

001 Inspection

None None 12,000 FH / 4,400

FC

If THSA is not

replaced by PN

47147-500 or

47147-700:

No further action

If the Ballscrew

integrity test is not

correct.

Replace the THSA,

refer to SUBTASK

274186-960-001

001 Replace the

Trimmable

Horizontal

Stabilizer Actuator

(THSA)

Before next flight None

If THSA is replaced

by PN 47147-500

or 47147-700:

Repeat this

Inspection at

12,000 FH / 4,400

FC.

F. APPROVAL

The technical content of this document is approved under the authority of Design

Organisation Approval No. EASA.21J.031.

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

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

responsible for obtaining approval by its airworthiness authority for any adaptation necessary

before incorporation of the Service Bulletin.

G. MANPOWER

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

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

and may need to be revised upwards to suit operator’s circumstances. The estimates do not

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

and tools, drying times for paints, sealants, etc., and general administration work are also not

included.

Task 274186-832-801-001: Inspection

Get Access 2.00

On Aircraft

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SERVICE BULLETIN

Task 274186-832-801-001: Inspection

Do a Special Detailed Inspection of the THSA

Ballscrew

2.00

Replace the Trimmable Horizontal Stabilizer Actuator

(THSA)

8.00

Tests 1.00

Close-Up 2.00

TOTAL MANHOURS 15.00

ELAPSED TIME (HOURS) 11.00

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 06-20-00 06-31-53 06-41-53

12-34-24 27-44-51

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

K. PUBLICATION AFFECTED

Aircraft Wiring List (AWL)

Maintenance Planning Document (MPD) 274400-08-1

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

M. SPARES

Actuator-Ths 47147-500

Actuator-Ths 47147-700

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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

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

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.

(2) Components

None

(3) Equipment

None

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

(1) Tooling - Price and Availability

None

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SERVICE BULLETIN

(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

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 274186-832-801-001 - 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.

NOTE: The purpose of flow charts are for information only to show the various

Inspection/Repair phases described in this Service Bulletin.

Task Associated Data

Zone

From 311 to 312

Modified FIN

1CS

Access

Door 312AR

Manpower

TOTAL MANHOURS 15.00

ELAPSED TIME (HOURS) 11.00

A. GENERAL

(1) Subtask 274186-910-001-001 - Standard Practices

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 06-20-00, Page Block 001

06-31-53, Page Block 001

06-41-53, Page Block 001

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SERVICE BULLETIN

(a) For the Frame (FR) identification (Refer to AMM 06-31-53, Page Block 001).

(b) For the identification of zones (Refer to AMM 06-20-00, Page Block 001) and

Manual Front Matter, Zone List.

(c) For the identification of access panels (Refer to AMM 06-41-53, Page Block 001)

and Manual Front Matter, Panel List.

(d) Tag the parts that you must remove and retain to make the subsequent installation

easier.

(e) Put all the retained hardware in identified plastic bags and attach the bags to the

related unit.

(f) Put blanking caps on the disconnected electrical connectors.

(2) Subtask 274186-839-001-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

(a) Write in the applicable aircraft records that you have done all the work given in this

Service Bulletin.

B. PREPARATION

(1) Subtask 274186-941-001-001 - Job Set-up

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 12-34-24-860-802

Task 27-44-51-220-801

(a) Make sure that 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) Do the job set-up procedure as specified in the Check Integrity of the Trimmable

Horizontal Stabilizer Actuator (THSA) Ballscrew Shaft (Primary and Secondary

Load Path) (Refer to AMM Task 27-44-51-220-801).

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SERVICE BULLETIN

C. PROCEDURE

(1) Subtask 274186-280-001-001 - Do a Special Detailed Inspection of the THSA

Ballscrew

Work Zones and Access Panels

Zone Access/Work location

From 311 Access Door 312AR

To 312

Manpower Resources

Manhours 2.00

Minimum number of person 1

Subtask elapsed time 2.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-44-51-220-801

At the threshold given in the Planning Information Paragraph E.(2) :

(a) For THSA which PN are not 47147-500 or 47147-700:

- No further action.

(b) For THSA which PN are 47147-500 or 47147-700:

1 Do a Ballscrew integrity test in accordance with AMM Task 27-44-51-220-801:

a If the test is correct:

<1> Repeat the Special Detailed Inspection of the THSA Ballscrew at the

Interval given in the Planning Information paragraph E.(2) (refer to

SUBTASK 274186-280-001 001 Do a Special Detailed Inspection of

the THSA Ballscrew ).

<2> Send the Appendix 02 - Inspection Report .

b If the test is not correct:

<1> Before next flight, replace the THSA FIN 1CS, refer to SUBTASK

274186-960-001 001 Replace the Trimmable Horizontal Stabilizer

Actuator (THSA) .

<a> If the THSA is not replaced by PN 47147-500 or PN

47147-700:

[1] No further action

[2] Send the Appendix 02 - Inspection Report .

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<b> If the THSA is replaced by PN 47147-500 or PN 47147-700:

[1] Repeat the Special Detailed Inspection of the THSA

Ballscrew at the Interval given in the Planning Information

paragraph E.(2) (refer to SUBTASK 274186-280-001 001

Do a Special Detailed Inspection of the THSA Ballscrew ).

[2] Send the Appendix 02 - Inspection Report .

(2) Subtask 274186-960-001-001 - Replace the Trimmable Horizontal Stabilizer

Actuator (THSA)

Manpower Resources

Manhours 8.00

Minimum number of person 2

Subtask elapsed time 4.00

Skills NON SPECIFIC

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).

FIN 1CS

1 Actuator-Ths 47147-500 Discard

or

FIN 1CS

1 Actuator-Ths 47147-700 Discard

(b) Install the new THSA, FIN 1CS (Refer to AMM Task 27-44-51-400-801).

D. TEST

(1) Subtask 274186-720-001-001 - Test

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-44-51-000-801

Task 27-44-51-220-801

Task 27-44-51-400-801

(a) If the THSA has been replaced:

1 Job Set-up:

a Remove the safety clip(s) and/or tag(s) and close/unlock the circuit

breaker(s) as specified after the installation of the THS Actuator (Refer to

AMM Task 27-44-51-400-801).

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SERVICE BULLETIN

2 Procedure:

a 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 274186-942-001-001 - Close-up

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-44-51-220-801

(a) Do the close-up procedure as specified after the Check Integrity of the Trimmable

Horizontal Stabilizer Actuator (THSA) Ballscrew Shaft (Primary and Secondary

Load Path) (Refer to AMM Task 27-44-51-220-801).

(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.

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SERVICE BULLETIN

**CONF ALL

Z311 Z312 − 

1CS

A

312AR

FR87

FR80

B

A

NOTE:

01 AREA TO BE INSPECTED

01

B

F_SB_274186_5_BAAA_01_00

Figure A-FBAAA - Sheet 01

Inspection Area

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

**CONF ALL

QUESTION

ACTION

FINDING

AT THE THRESHOLD GIVEN IN THE PLANNING

INFORMATION PARAGRAPH E.(2).

THSA PN

NO YES

DO A SPECIAL DETAILED INSPECTION OF THE TRIMMABLE

HORIZONTAL STABILIZER ACTUATOR (THSA) FIN 1CS BALLSCREW

NO FURTHER ACTION

REFER TO AMM TASK 27−44−51−220−801

DO A BALLSCREW INTEGRITY TEST

47147−500 OR

47147−700

REFER TO TASK 274186−832−801−001

NO TEST OK YES

DO A SPECIAL DETAILED INSPECTION OF THE

TRIMMABLE HORIZONTAL STABILIZER

AT THE THRESHOLD GIVEN IN THE PLANNING

INFORMATION PARAGRAPH E.(2).

ACTUATOR (THSA) FIN 1CS BALLSCREW

REFER TO TASK 274186−832−801−001

BEFORE NEXT FLIGHT

REPLACE THE THSA

REFER TO SUBTASK

274186−960−001−001

REPLACED BY

NO THSA PN 47147−500 OR YES

47147−700

NO FURTHER ACTION

F_SB_274186_5_FAAA_01_00

Figure A-FFAAA - Sheet 01

Flow Chart

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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This Page Intentionally Left Blank

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

Appendix 01 - Elapsed Time Assumptions

**CONF ALL

The following chart is only a proposal. Operators may determine that another way to do the work is

more suitable for them.

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

Appendix 01 - Elapsed Time Assumptions

**CONF ALL

ELAPSED TIME ASSUMPTION SERVICE BULLETIN No. A330−27−4186

GET ACCESS

MH ET/S

TOTAL MANHOURS

SB ELAPSED TIME

15.00

11.00

STEPS

2.00 2.00

0 10

DO A SPECIAL DETAILED

2.00 2.00

8.00 4.00

TEST 1.00 1.00

CLOSE−UP 2.00 2.00

MH

ET/S:

PER

MANHOURS

ELAPSED TIME PER STEP

NUMBER OF PERSONS

01

02

THIS CHART IS ONLY A PROPOSAL.

OPERATORS MAY DETERMINE THAT ANOTHER WAY

TO DO THE WORK IS MORE SUITABLE FOR THEM.

01

02

NOTES:

PER

1

1

2

1

1

:

:

SB ELAPSED TIME

(HOURS)

2 4 6 8 12

IF A VSB IS INVOLVED, THE ASSOCIATED MANHOURS

ARE NOT REFLECTED IN THIS GANTT CHART.

INSPECTION OF THE THSA

BALLSCREW

REPLACE THE TRIMMABLE

HORIZONTAL STABILIZER

ACTUATOR (THSA)

F_SB_274186_5_AAAA_01_00

Figure A-FAAAA - Sheet 01

Elapsed Time Assumptions

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

Appendix 02 - Inspection Report

**CONF ALL

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: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

Appendix 02 - Inspection Report

**CONF ALL

INSPECTION REPORT

SERVICE BULLETIN No. :

A/C MSN :

FLIGHT CYCLES :

FLIGHT HOURS :

A340−27−4186

DATE OF INSPECTION :

RETURN TO :

AIRBUS

CUSTOMER SERVICES ENGINEERING − SEEL6

FLIGHT CONTROL SYSTEMS A330/A340 &

INSPECTION METHOD : SPECIAL DETAILED

WIDE BODY

1 ROND POINT MAURICE BELLONTE

31707 BLAGNAC CEDEX

FRANCE

FAX +33 (0)5 61 93 32 73

Z311 Z312 − 

1CS

A

312AR

FR87

FR80

A

BALLSCREW INTEGRITY THSA REPLACED BY

TEST CORRECT PN 4147−500 OR 4147−700

YES NO YES NO

BALLSCREW

THSA PN IS

4147−500 OR 4147−700

YES NO

INSPECTION

F_SB_274186_5_RAAA_01_01

Figure A-FRAAA - Sheet 01

Inspection Report

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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SERVICE BULLETIN

REPORTING SHEET

TITLE: FLIGHT CONTROLS - TRIMMABLE HORIZONTAL STABILIZER

ACTUATOR - BALLSCREW INTEGRITY CHECK

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: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

REVISION No.: 00 - Jun 07/12 Page: 1

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SERVICE BULLETIN

QUALITY PERCEPTION FORM

Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data

that you provide us will be used to analyse areas of difficulties and to take corrective action to further

improve the quality of our Service Bulletins.

We thank you for the time you have taken in completing this form.

(Please rate on a scale of 1 to 4, with 4 being the highest score)

- Quality rating of this SB 4321

- Quality rating of the Accomplishment Instructions 4321

- Quality rating of the Illustrations 4321

- Is this SB easy to understand ? Y/N

If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a

short description of the issue.

Planning Material Instructions

X Effectivity X Kit content X Preparation

X Reason X List of Materials Operator Supplied X Mod/Inspection

X Manpower X Industry support X Test

X References X Re-identification X Close-Up

X Publication X Tooling X Illustrations

Comments:

Operator: Date:

Name/Title:

Please return this form to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn : SEM4 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.

DATE: Jun 07/12 SERVICE BULLETIN No.: A340-27-4186

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