@A318/A319/A320/A321

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: 57

TITLE: WINGS - CENTER WING - INSPECTION OF CENTER WING BOX

STRUTS.

MODIFICATION No.: None

This page transmits Revision No.01 of Service Bulletin No.A320-57-1149

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 update the accomplishment Timescale, to delete CONF 001 and to apply

minor changes.

CHANGES

FRONT MATTER

WINGS - CENTER WING - INSPECTION

OF CENTER WING BOX STRUTS.

CONFIGURATION UPDATED R

SUMMARY

GENERAL EVALUATION GENERAL EVALUATION TABLE UPDATED R

EFFECTIVITY OPERATOR LIST UPDATED R

CONCURRENT REQUIREMENTS CONCURRENT REQUIREMENTS DELETED FOR

APPLICABLE MSN

D

CONCURRENT REQUIREMENTS UPDATED

CONFIGURATION UPDATED

R

REFERENCES / REPERCUSSIONS REFERENCES/REPERCUSSIONS TABLE

UPDATED

R

MANPOWER MANPOWER UPDATED

CONFIGURATION UPDATED

R

MANPOWER DELETED FOR APPLICABLE MSN D

APPENDICES APPENDICES UPDATED R

Fig. A-FSAAA FIGURE SOLUTION ADDED N

Fig. A-FSAAA Sheet 01 SHEET ADDED N

Fig. A-FSU FIGURE DELETED FOR APPLICABLE MSN D

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 1

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REVISION TRANSMITTAL SHEET

PLANNING INFORMATION

EFFECTIVITY EFFECTIVITY RELATED INFORMATION

UPDATED

R

Configuration definition CONFIGURATION LIST UPDATED R

Configuration definition CONFIGURATION DELETED D

CONF 002 CONFIGURATION DEFINITION UPDATED

CONFIGURATION DESCRIPTION UPDATED

R

CONCURRENT REQUIREMENTS CONCURRENT SB LIST DELETED FOR

APPLICABLE MSN

D

CONCURRENT SB LIST UPDATED

CONFIGURATION UPDATED

R

REASON

Operational/Maintenance

Consequences

OPERATIONAL/MAINTENANCE CONSEQUENCES

UPDATED

R

DESCRIPTION DESCRIPTION UPDATED R

COMPLIANCE

Classification CLASSIFICATION UPDATED R

Accomplishment Timescale ACCOMPLISHMENT TIMESCALE DELETED FOR

APPLICABLE MSN

D

Accomplishment Timescale ACCOMPLISHMENT TIMESCALE UPDATED

CONFIGURATION UPDATED

R

APPROVAL APPROVAL UPDATED R

MANPOWER MANPOWER UPDATED

CONFIGURATION UPDATED

R

MANPOWER DELETED FOR APPLICABLE MSN D

REFERENCES REFERENCED DOCUMENTATION DELETED FOR

APPLICABLE MSN

D

REFERENCED DOCUMENTATION UPDATED

CONFIGURATION UPDATED

R

MATERIAL INFORMATION

MATERIAL - PRICE AND AVAILABILITY

Procurement Addresses PROCUREMENT ADDRESSES UPDATED R

Price and Availability PRICE AND AVAILABILITY UPDATED R

ACCOMPLISHMENT INSTRUCTIONS

TASK 571149- 832-802-001-Inspection TASK SOLUTION ADDED N

Task associated data - 002 TASK ASSOCIATED DATA ADDED N

Subtask 571149-839-003-001 SUBTASK SOLUTION ADDED N

Subtask 571149-941-002-001 SUBTASK SOLUTION ADDED N

Subtask 571149-832-001-001 SUBTASK SOLUTION ADDED N

Subtask 571149-942-002-001 SUBTASK SOLUTION ADDED N

Fig. A-FBAAA FIGURE SOLUTION ADDED N

Fig. A-FBAAA Sheet 01 SHEET ADDED N

Fig. A-FFAAA FIGURE SOLUTION ADDED N

Fig. A-FFAAA Sheet 01 SHEET ADDED N

Fig. A-FAA FIGURE DELETED FOR APPLICABLE MSN D

Fig. A-FAB FIGURE DELETED FOR APPLICABLE MSN D

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REVISION TRANSMITTAL SHEET

Appendix 01: Inspection Report

APPENDIX CONTENT APPENDIX CONTENT UPDATED R

Fig. A-FRAAA FIGURE SOLUTION ADDED N

Fig. A-FRAAA Sheet 01 SHEET ADDED N

Fig. A-FRAAA Sheet 02 SHEET ADDED N

Fig. A-FAC FIGURE DELETED FOR APPLICABLE MSN D

Appendix 02: Elapsed Time Assumptions

APPENDIX CONTENT APPENDIX CONTENT ADDED N

Fig. A-FADAA FIGURE SOLUTION ADDED N

Fig. A-FADAA Sheet 01 SHEET ADDED N

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: Apr 01/08

REVISION No. : 01 - Feb 12/13

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REVISION No.: 01 - Feb 12/13 Page: 3

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REVISION TRANSMITTAL SHEET

This Page Intentionally Left Blank

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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.

ATA SYSTEM: 57

TITLE: WINGS - CENTER WING - INSPECTION OF CENTER WING BOX

STRUTS.

**CONF ALL

MODIFICATIONS

None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

The Center Wing Box (CWB) contains 38 structural struts. These struts made from aluminium alloy are

fitted to the CWB upper and lower panels. They have a circular section in the current zone and a

tapered shape near their ends.

Two cases of CWB struts found broken have been reported on A320 aircraft. For each case an

expertise of the broken strut was carried out to determine the cause and the rupture process.

These expertise have revealed that the struts had cracked in their tapered area under the effect of the

load.

For both struts some quality defects, linked to the manufacturing, have been emphasized: strut

thickness in the crack initiation area was lower than specified in the production drawings. The first strut

suffered also a slight accidental damage during manufacturing.

The manufacturer: SARMA, confirmed that manufacturing process has been improved. The use of

numerical control machine since 1989 ensures that all aircraft from MSN 0137 are equipped with struts

manufactured with a higher precision.

This Service Bulletin recommends a repetitive Detailed Visual Inspection of the lower and upper ends

(including tapered shape) of the 38 CWB struts fitted on aircraft up to MSN 0136 included; in order to

detect cracks.

Accomplishment of this Inspection Service Bulletin will permit early detection of cracks on CWB struts.

GENERAL EVALUATION

EVALUATION TABLE

COMPLIANCE RECOMMENDED (1) CANCELS INSPECTION SB NO

POTENTIAL AD YES A/C OPERATION AFFECTED NO

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SUMMARY

EVALUATION TABLE

RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO

COST SAVING NO ETOPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED NO

DE FUELLING /

VENTILATION

YES

NOTE (1): Service Bulletin recommended to be accomplished to prevent significant operational

disruptions.

MATERIAL PRICE INFORMATION

No Material

EFFECTIVITY

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

35U 36V 73W 98W ACA AFR DAL DLH FPY IAC JAV MMA TAR

UDC USA

CONCURRENT REQUIREMENTS

- This Service Bulletin can be done at the same time as:

. ALI task No. 571189-01-1 MPD 57-11-89

or:

. MPD Task No.ZL-141-01-1Zonal Section

REFERENCES / REPERCUSSIONS

TFU None

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER None

NATURE OF THE WORK

AIRCRAFT YES

EQUIPMENT NO

HARD NO

SOFT NO

OBRM NO

MANPOWER

Task 571149-832-802-001: Inspection

TOTAL MANHOURS 12.00

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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SUMMARY

Task 571149-832-802-001: Inspection

ELAPSED TIME (HOURS) 6.00

APPENDICES

Appendix 01: Inspection Report

Appendix 02: Elapsed Time Assumptions

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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SUMMARY

**CONF ALL

FR36

FR42

RIB0

Z141

Z142

B

A

LH SIDE (SHOWN)

RH SIDE (SYM)

AREA TO BE INSPECTED A

B

N_SB_571149_5_SAAA_01_00

Figure A-FSAAA - Sheet 01

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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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

ATA SYSTEM: 57

TITLE: WINGS - CENTER WING - INSPECTION OF CENTER WING BOX

STRUTS.

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

320-211 320-212 320-231

(2) Effectivity by MSN

0029 0039 0042 0044-0059 0061 0063-0078 0080-0090 0093-0097 0099 0102-0104

0109-0127 0135-0136

(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

35U 0088

36V 0136

73W 0087

98W 0039 0042 0103 0109 0120

ACA 0059 0068 0073 0084 0122 0126 0127

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OPERATOR MSN

AFR 0044 0061 0063 0102 0115

DAL 0118 0121 0125

DLH 0069 0070 0071 0072 0078 0083 0086 0093 0094 0104 0110 0111

0116 0117 0135

FPY 0112

IAC 0045 0046 0047 0048 0049 0050 0051 0056 0057 0058 0074 0075

0080 0089 0090 0095 0096 0097

JAV 0029

MMA 0113 0114

TAR 0119 0123 0124

UDC 0085

USA 0052 0053 0054 0055 0064 0065 0066 0067 0076 0077 0081 0082

0099

(4) Configuration by MSN

MSN CONFIGURATION

0029 0039 0042 0044 0045 0046 0047 0048 0049 0050 0051

0052 0053 0054 0055 0056 0057 0058 0059 0061 0063 0064

0065 0066 0067 0068 0069 0070 0071 0072 0073 0074 0075

0076 0077 0078 0080 0081 0082 0083 0084 0085 0086 0087

0088 0089 0090 0093 0094 0095 0096 0097 0099 0102 0103

0104 0109 0110 0111 0112 0113 0114 0115 0116 0117 0118

0119 0120 0121 0122 0123 0124 0125 0126 0127 0135 0136

002

(5) Configuration definition

**CONF 002

Config. 002 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

- This Service Bulletin can be done at the same time as:

. ALI task No. 571189-01-1 MPD 57-11-89

or:

. MPD Task No.ZL-141-01-1Zonal Section

C. REASON

(1) History

The Center Wing Box (CWB) contains 38 structural struts. These struts made from

aluminium alloy are fitted to the CWB upper and lower panels. They have a circular

section in the current zone and a tapered shape near their ends.

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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Two cases of CWB struts found broken have been reported on A320 aircraft. For each

case an expertise of the broken strut was carried out to determine the cause and the

rupture process.

These expertise have revealed that the struts had cracked in their tapered area under

the effect of the load.

For both struts some quality defects, linked to the manufacturing, have been

emphasized: strut thickness in the crack initiation area was lower than specified in the

production drawings. The first strut suffered also a slight accidental damage during

manufacturing.

The manufacturer: SARMA, confirmed that manufacturing process has been improved.

The use of numerical control machine since 1989 ensures that all aircraft from MSN

0137 are equipped with struts manufactured with a higher precision.

(2) Objective/Action

This Service Bulletin recommends a repetitive Detailed Visual Inspection of the lower

and upper ends (including tapered shape) of the 38 CWB struts fitted on aircraft up to

MSN 0136 included; in order to detect cracks.

(3) Advantages

Accomplishment of this Inspection Service Bulletin will permit early detection of cracks

on CWB struts.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 571149-832-802-001: Inspection

(1) Detailed Inspection of Center Wing Box Struts.

E. COMPLIANCE

(1) Classification

RECOMMENDED: Service Bulletin recommended to be accomplished to prevent

significant operational disruptions.

(2) Accomplishment Timescale

This Service Bulletin must be accomplished whichever occurs later:

- before 31,700 Flight Cycles (FC) or within 63,400 Flight Hours (FH) from aircraft first

flight, whichever occurs first.

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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- before 16,800 Flight Cycles (FC) or within 33,600 Flight Hours (FH) since the last

inspection per ISB 57-1149, whichever occurs first.

- within 2,500 Flight Cycles (FC) or 5,000 Flight Hours (FH) from the Service Bulletin

issue date, whichever occurs first.

The inspection must be repeated every 16,800 Flight Cycles (FC) or 33,600 Flight Hours

(FH), whichever occurs first.

This Service Bulletin has been classified Recommended. It is expected that an

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

will be issued to change this classification to Mandatory. It is anticipated that the AD will

confirm the thresholds and intervals given above but reference should be made to the

AD for confirmation of the mandated accomplishment timescale.

NOTE: The new figures are based on the new fatigue mission.

F. APPROVAL

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

Organization 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 571149-832-802-001: Inspection

Get Access 4.00

On Aircraft

Detailed Inspection of Center Wing Box Struts. 4.00

Close-Up 4.00

TOTAL MANHOURS 12.00

ELAPSED TIME (HOURS) 6.00

NOTE: For detail concerning the elapsed time assumption, refer to Appendix 02:

Elapsed Time Assumptions .

H. WEIGHT AND BALANCE

Not Changed

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

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I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 12-34-24 57-17-11

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

Maintenance Planning Document (MPD) Zonal Section

MPD 57-11-89

K. PUBLICATION AFFECTED

None

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

M. SPARES

None

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2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

None

(2) Price and Availability

None

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

None

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

None

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3. ACCOMPLISHMENT INSTRUCTIONS

Task 571149-832-802-001 - 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 141 to 142

From 147 to 148

Access

Door 147AZ 148AZ

Manpower

TOTAL MANHOURS 12.00

ELAPSED TIME (HOURS) 6.00

A. GENERAL

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

Inspection/Repair phases described in this Service Bulletin.

(1) Subtask 571149-839-003-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

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

Service Bulletin.

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B. PREPARATION

(1) Subtask 571149-941-002-001 - Job Set-up

Work Zones and Access Panels

Zone Access/Work location

From 147 Access Door 147AZ

Work location Frame 42

To 148 Access Door 148AZ

Work location Frame 42

Manpower Resources

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) Task 12-34-24-869-001

Task 57-17-11-000-001

(a) Make sure that the aircraft is electrically grounded (Refer to AMM Task

12-34-24-869-001).

(b) Put access platform(s) in position.

(c) Remove the access-covers 147AZ and 148AZ (Refer to AMM Task

57-17-11-000-001).

C. PROCEDURE

(1) Subtask 571149-832-001-001 - Detailed Inspection of Center Wing Box Struts.

Work Zones and Access Panels

Zone Access/Work location

From 141

To 142

Manpower Resources

Manhours 4.00

Minimum number of person 2

Subtask elapsed time 2.00

Skills AIRFRAME

References

Fig. A-FBAAA

AREA TO BE INSPECTED.

Sheet 01

Fig. A-FFAAA

FLOW - CHART.

Sheet 01

(a) At the threshold given in the PLANNING INFORMATION paragraph E.(2):

Do a detailed inspection of all Center Wing Box struts concerned areas

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Refer to Fig. A-FBAAA Sheet 01 and Fig. A-FFAAA Sheet 01

1 If there are any cracks:

a Contact Airbus for further action before next flight.

2 If there are no cracks:

a Repeat this inspection at the interval given in the PLANNING

INFORMATION paragraph E.(2).

(b) Send Appendix 01: Inspection Report .

D. TEST

None

E. CLOSE-UP

(1) Subtask 571149-942-002-001 - Close-up

Work Zones and Access Panels

Zone Access/Work location

From 147

To 148

Manpower Resources

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) Task 12-34-24-869-001

Task 57-17-11-400-001

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

equipment.

(b) Install the access-covers 147AZ and 148AZ (Refer to AMM Task

57-17-11-400-001).

(c) Remove the access platform(s).

(d) Restore the systems and the aircraft to normal operating condition.

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**CONF ALL

FR36

FR42

RIB0

Z141

Z142

B

A

LH SIDE (SHOWN)

RH SIDE (SYM)

AREA TO BE INSPECTED

B

AREA TO BE INSPECTED

TYPE OF POTENTIAL DAMAGE: CRACK

STRUT SHAPE

TRANSITION AREA

POTENTIAL CRACK

A

N_SB_571149_5_BAAA_01_00

Figure A-FBAAA - Sheet 01

AREA TO BE INSPECTED.

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**CONF ALL

DO A DETAILED INSPECTION OF ALL CENTER

WING BOX STRUTS CONCERNED AREAS

AT THE THRESHOLD GIVEN IN THE PLANNING

QUESTION

ACTION

FINDING

CRACKS?

YES NO

INFORMATION PARAGRAPH E.(2).

REFER TO SUBTASK 571149−832−001−001

REPEAT THIS INSPECTION

AT THE INTERVAL GIVEN IN THE PLANNING

INFORMATION PARAGRAPH E.(2).

ARE THERE ANY

CONTACT AIRBUS FOR

FURTHER ACTION BEFORE

NEXT FLIGHT

N_SB_571149_5_FAAA_01_04

Figure A-FFAAA - Sheet 01

FLOW - CHART.

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Appendix 01: Inspection Report

**CONF ALL

The result of the inspection, including no finding, replacement or action to be done, must be forwarded

to AIRBUS Department SEES4, on the attached Inspection Report Sheet.

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 1

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SERVICE BULLETIN

Appendix 01: Inspection Report

**CONF ALL

INSPECTION REPORT

SERVICE BULLETIN NO.: A320−57−1149

A/C MSN:

FLIGHT CYCLES:

FLIGHT HOURS:

DATE OF INSPECTION:

RETURN TO:

PAX DOORS − FUSELAGE (SA/LA) − WINDOWS −

CENTER WING BOX

(SA/LA)

INSPECTION METHOD:

1 ROND POINT MAURICE BELLONTE

31707 BLAGNAC CEDEX

FRANCE

FAX +33 (0)5 61 93 36 14

DETAILED

INSPECTION

NO YES: TOP BOTTOM

CRACK ON

STRUT NO

Z141 (LEFT SIDE) Z142 (RIGHT SIDE)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

NO YES: TOP BOTTOM

AIRBUS

CUSTOMER SERVICES ENGINEERING − SEES4

N_SB_571149_5_RAAA_01_02

Figure A-FRAAA - Sheet 01

Appendix 01

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 2

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SERVICE BULLETIN

Appendix 01: Inspection Report

**CONF ALL

FR36

FR42

RIB0

Z141

Z142

B

A

A

B

LH SIDE (SHOWN)

RH SIDE (SYM)

1

2

3 5

6

7

8

9

12

10

11

13

14

15

16

17

18

19

4

AREA TO BE INSPECTED

POTENTIAL CRACK AREA TO BE INSPECTED

POTENTIAL CRACK

TYPICAL STRUT

N_SB_571149_5_RAAA_02_00

Figure A-FRAAA - Sheet 02

Appendix 01

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 3

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SERVICE BULLETIN

Appendix 01: Inspection Report

This Page Intentionally Left Blank

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 4

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SERVICE BULLETIN

Appendix 02: Elapsed Time Assumptions

**CONF ALL

(1) For detail concerning the elapsed time assumptions, refer to Gantt chart shown in the next page:

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 1

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SERVICE BULLETIN

Appendix 02: Elapsed Time Assumptions

**CONF ALL

ELAPSED TIME ASSUMPTION SERVICE BULLETIN No. A320−57−1149

GET ACCESS

MH ET/S

TOTAL MANHOURS

SB ELAPSED TIME

12.00

6.00

STEPS

4.00 2.00

0 5

INSPECTION OF CENTER 4.00 2.00

CLOSE−UP 4.00 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

2

2

2

:

:

SB ELAPSED TIME

(HOURS)

1 2 3 4 6

IF A VSB IS INVOLVED, THE ASSOCIATED MANHOURS

ARE NOT REFLECTED IN THIS GANTT CHART.

WING BOX STRUTS

N_SB_571149_5_ADAA_01_00

Figure A-FADAA - Sheet 01

Gantt Chart

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 2

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SERVICE BULLETIN

REPORTING SHEET

TITLE: WINGS - CENTER WING - INSPECTION OF CENTER WING BOX

STRUTS.

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: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 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: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149

REVISION No.: 01 - Feb 12/13 Page: 1

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