# @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 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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 DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 2 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 3 5

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# @A318/A319/A320/A321 SERVICE BULLETIN REVISION TRANSMITTAL SHEET

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# @A318/A319/A320/A321 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. 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 DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 1 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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 REVISION No.: 01 - Feb 12/13 Page: 2 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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 REVISION No.: 01 - Feb 12/13 Page: 3 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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 REVISION No.: 01 - Feb 12/13 Page: 4 5

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# @A318/A319/A320/A321 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 DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 1 5

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# @A318/A319/A320/A321 SERVICE BULLETIN
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 REVISION No.: 01 - Feb 12/13 Page: 2 5

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# @A318/A319/A320/A321 SERVICE BULLETIN 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 REVISION No.: 01 - Feb 12/13 Page: 3 5

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# @A318/A319/A320/A321 SERVICE BULLETIN - 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 REVISION No.: 01 - Feb 12/13 Page: 4 5

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# @A318/A319/A320/A321 SERVICE BULLETIN
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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# @A318/A319/A320/A321 SERVICE BULLETIN

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# @A318/A319/A320/A321 SERVICE BULLETIN
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

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 7 5

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# @A318/A319/A320/A321 SERVICE BULLETIN

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# @A318/A319/A320/A321 SERVICE BULLETIN
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 147to 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.

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 9 5

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# @A318/A319/A320/A321 SERVICE BULLETIN
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 DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 10 5

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# @A318/A319/A320/A321 SERVICE BULLETIN
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.

DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 11 5

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# @A318/A319/A320/A321 SERVICE BULLETIN

**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. DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 12 5

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# @A318/A319/A320/A321 SERVICE BULLETIN

**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? NO YES 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. DATE: Apr 01/08 SERVICE BULLETIN No.: A320-57-1149 REVISION No.: 01 - Feb 12/13 Page: 13 5

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# @A318/A319/A320/A321 SERVICE BULLETIN

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# @A318/A319/A320/A321 SERVICE BULLETIN 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.

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# @A318/A319/A320/A321 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

YES: TOP BOTTOM NO 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 YES: TOP BOTTOM NO 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 5

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# @A318/A319/A320/A321 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 5

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# @A318/A319/A320/A321 SERVICE BULLETIN Appendix 01: Inspection Report

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# @A318/A319/A320/A321 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:

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# @A318/A319/A320/A321 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

5 0 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 5

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# @A318/A319/A320/A321 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 5

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# @A318/A319/A320/A321 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 5

Printed in FRANCE ©AIRBUS S.A.S. 2007. All rights reserved.