1 AILBUS INDUSTRIE 

# CBA300

CUSTOMERSERVICES DIRECTORATE 1 Rond Point Maurice Bellonte 31707 BLAGNACCEDEXFRANCE SERVICE BULLETIN Tel : (33) 5 61 93 33 33 Telex : AIRBU 530526F REVISION TRANSMITTAL SHEET FAX : (33) 5 61 30 01 25

MODIFICATION No. : INSPECTION ATA SYSTEM : 53 T I T L E : FUSELAGE- INSPECT BONDEDINNER DOUBLERSOFLONGITUDINAL LAP JOINTS

IN SECTIONS 13 THRU 18 Herewith Revision No. 5 of ServickBuLLetin A300-53-229. No additional work is required by this Revision.
REASON This Revision is issued to show that no inspection is required on longitudinal lap joints at STGR31 LH and RH in section 16, after accomplishment of SBA300-53-0110 and to include the following changes and Change Notice 4.A. Pages 1 of 17 and 2 Para. 1.A. - Effectivity updated Page 5 Para. I.C. - MSN002 and MSN104, 153, 092 deleted Page II/12 Figure 2 - Figure updated
FILING INSTRUCTIONS Replace Service Bulletin pages 1 of 17, 2, 5 and 11/12. Discard Change Notice 4.A.
REVISION SEQUENCE Original: Aug 29/88 Revision No.: l- Apr IO/89 Revision No.: 2- Jul 28/89 Revision No.: 3- Jan 31/91 Revision No.: 4- Mar 30/94 Revision No.: 5- APA.

SERVICE BULLETIN No. : A300-53-229 PrintedinFrance PAGE: 1 of 1AIRBUS INDUSTRIE 

# CBA300

CUSTOMERSERVICES DIRECTORATE 

### SERVICEBULLETIN 1 Rond Point Maurice BeLLonte 31707 BLAGNAC CEDEXFRANCE Tel : (33) 5 61 93 33 33 Telex : 

### AIRBU530526F FAX : (33) 5 61 30 01 25 

### MODIFICATIONNo. : INSPECTION ATA SYSTEM : 53 

### TITLE : FUSELAGE- INSPECT BONDED

### INNERDOUBLERSOF

### LONGITUDINAL LAP

### JOINTS IN SECTIONS 13 THRU 18 1. PLANNING INFORMATION A. EFFECTIVITY (I> Aircraft Models: B2-IC, 82-203, B2K-3C, B4-2C, B4-103, B4-120, B4-203, C4-203 

# I I I (2) Aircraft:

Customer and Fleet No. AFR 001-003 005, 006, 007 051-054, 019, 023, 045, 047, 074, 078, 100, 056-060 129, 145 AJM 001-004 AUS001 AZA 101-102 151-157, 159-162 127, 131, 109, 143

134 049, 051 

### COA966-968 EAL 201-206, 209-210, 212-213, 215-217, 220-224 101, 106, 107, 123, 139, 140, 142,

067, 118, 120, 068 117, 121, 126 041, 042, 043; 044, 065, 066, 086, 087, 091, 108, 119, 124, 152, 154, 155

HFL 307 IAC 001-009 083

036, 038, 059, 060, 088, 111, 113, 026 

### IBE 251-255 130, 133, 135, 136, 156 281-282 076, 077 

### IRA001-002 061, 080 ITF 031, 015, 008, 027, 062, 097, 112, 033-037, 050, 132, 102, 048, 052 042-046 091-096 029, 057, 020, 017, 009, 012 JAS001-003 082, 089, 090 102,105 151, 110 MSN A00 Kits Kit No. Qty of

6 DATE : Aug 29188 I 

### REVISIONNo. : 5-APR.0519’1 SERVICEBULLETINNo. 

### : A300-53-229 PAGE: 1 of 17 PrintedinFrance

# GIA300

. SERVICE BULLETIN

Customer and Kit No. Wy of FLeet No. MSN A00 Kits KAL 001-008 MAS001-004 MSR002-003 OAL 001-006 OYC201-202, 204 PAL 001-003 PIA 001-004 01O-01 1, 014 RKA 551 SAA001-004 051 SY 002 THA 001-005, 007-010 

### VIA 001-002 014, 016, 018, 024, 028, 030, 031,

081 073, 093, 095, 147 116, 150 046, 056, 058, 103, 105, 148 079, 094, 128 063, 069, 125 096, 098, 099, 114 064, 144, 146 137 032, 037, 039, 040 138 003 033, 035, 054, 055, 071, 084, 085, 141, 149 053, 075 (31 Spares None B. REASON During inspection on in-service aircraft, debonding and corrosion were found on the bonded inner doublers of the longitudinal lap joints. For the most affected joints, modifications were defined 

### by Service 

### Bulletins A300-53-206, A300-53-209 and A300-53-215 or A300-53-216. For the remaining non-modified lap joints, this Service 

### Bulletin introduces a bonding inspection program for sections 13 thru 18. It is mandatory to inspect the longitudinal lap joints in sections 13 thru 18 before 24000 flights or 15 years, whichever occurs first except:

- 

### In sections 16 and 17, at STGR31 LH/RH the 

### longitudinal lap joint must be inspected before 24000 flights or 12 years, whichever occurs first.

DATE : Aug 29188 SERVICE BULLETIN No. : A300-53-229 I REVISION No. : 5- 

### APR.05197 PrintedinFrance PAGE : 2SERVICE BULLETIN

Since some aircraft will have a major Lay-over before reaching 24000 flights, the first inspection can be performed at a minimum threshold of 16000 flights or 8 years, whichever occurs first. Aircraft inspected before this threshold have to be reinspected at maximum threshold as stated above. The follow-up inspection intervals of the different areas are shown in the flow chart 1, Figure 1. This Service Bulletin is rendered mandatory by French Airworthiness Directive (Consigne de Navigabilite) No. 89-061-092(B).

DATE : Aug 29/88 SERVICE BULLETIN No. : A300-53-229 I RE"ISI(,,,, No. : 4- 

### f’ihfi30/94 Printed inFrance PAGE: 3

# CDA300 SERVICE BULLETIN

INSPECTlON OF BONDED INNER DOUBLERS OF LONGlTUDINAL LAP JOINTS

SECTIONS 13AND 14 ABOVE AND INCLUDING STGR 22 UIIRH,MCEPT STGR 22RH INSECT.13 

# I
THRESHOLD OF FIRST INSPECTION: 15YV\RSOR24000F 

# I FOLLOW-UP INSPECT. INTERVk 7YEARS OR 12OC0F I 

# I I AND: .~-“-‘.-‘--“-------‘--~ ;‘SECllONS 13AND 14 \

THRESHOLD OF FIRST INSPECTION: 15YEARSOR24000F

FOLLOW-UP INSPECT. IhlERVAlz 8,sYEARS OR

DATE : Aug 29/88 I REVISION No. : 4- 

### tm30194 l PRIOR TO THE APPUCATlON OF SB’S 53-206 nf 53-215 or 53-216 SECTIONS 16AND 17

THRESHOLD OF FIRST /INSPECTION: 12YEARS OR24000 F I I

I
FINDINGS 

# L-i

VAUD UPTO 48000 F

I 

# IDEBONDING CLASSlFlCA?lON REFER TO PARA: 2C. I 

# IFOLLOW-UP ACTlONS AS PER FLOW CHART 2 I

Flow Chart 1 Figure 1

Printed in France SERVICE BULLETIN No. : A300-53-229 PAGE: 4

# CBA300 SERVICE BULLETIN

C. DESCRIPTION Accomplishment of this Service Bulletin consists in carrying out the inspections on the aircraft as shown in Flow Chart 1. CAUTION: AS THE PRESENCEOF HUMIDITY IN DEBONDEDJOINTS NEGATIVELY AFFECTS

THE RELIABILITY OFBONDTEST RESULTS, ANY MEASURESTO INCREASE THE PROBABILITY OF MOISTURE INGRESSION (SUCH AS CLEANING WITH CHEMICAL AGENTS FROMTHE INSIDE OF THE FUSELAGE) ARETO BEAVOIDED BEFORE ACCOMPLISHMENT OF NONDESTRUCTIVE BONDTESTING. Perform a Fokker bond test according to A300 NTM PART5, 53-30-40 in the following areas: MSN003 thru 101 Sections 13 thru 18, completely MSN102, 103 Section 13, not affected Sections 14 thru 18, completely MSN 105 Section 13, not affected Section 14, STGR47 LH and STGR49 RHbetween FR26 and FR38.1 Sections 15 thru 18, completely MSN 107 Section 13, not affected Section 14, STGR22 LH, STGR31, LH between FR26 and FR39, STGR47 LH and

STGR49 RHbetween FR26 and FR38.1 Sections 15 thru 18, completely MSN109 Section 13, not affected Section 14, STGRSLH between FR26 and FR38 Sections 15 thru 18, completely MSN106, 108, 110 thru 156 Section 13, not affected Section 14, not affected Sections 15 thru 18, completely

DATE : Aug 29/88 I REVISION No. : 5- 

### APROS/ SERVICE BULLETIN No. : A300-53-229
Printed in France PAGE: 5

# @A300 SERVICE BULLETIN

NOTE: ALL inspection findings are to be entered on the Test Record Sheets and forwarded to Airbus Industrie Support Division. NOTE: The Lap joint repair solution variants 2, 3 and 4 of Service Bulletin
- A300-53-211 can be determined from inside the aircraft only. Therefore, the operators accomplishing this inner doubler inspection have to identify and record the performed Lap joint repair solutions for Later or parallel accomplishment of Service Bulletin A300-53-211. D. APPROVAL This Service Bulletin is approved by Direction G&-&r-ale de L'Aviation CiviLe - FRANCE (D.G.A.C.). E. MANPOWER Manhours

Gain access Inspection Close-up/Test TOTAL MANHOURS ELAPSED TIME (HOURS) 72

Gain access Inspection Close-up/Test TOTAL MANHOURS 

### SECTIONS13 THRU 18 COMPLETELY SECTIONS 13 AND 14 ABOVEAND INCL. STGR22, EXCEPT STGR22 RH IN SECTION 13 450 123.5 240 66 536 147 1226 336.5

SECTIONS 15 THRU 18 SECTIONS 16 AND 17 COMPLETELY STGR31 LH AND RH

219 33 117 17.5 260 39 596 84.5 ELAPSED TIME (HOURS) NOTE: The manhours for the inspection time are based on two teams including 4 inspectors. If more than two teams are used, the elapsed time decreases accordingLy. NOTE: The manhours for gain access and close-up are based on a typical aircraft configuration. The manhours for other aircraft configurations are subject to change.

DATE : Aug 29/88 SERVICE BULLETIN No. : A300-53-229 I REVISION No. : 4s 

### MAR3 0!34 Printed inFrance PAGE : 6SERVICE BULLETIN

NOTE: This Service Bulletin assumes that the aircraft has been placed in a maintenance status. The manhour/elapsed time estimates do not include preparation for the inspection, nonproductive elapsed time, or administrative functions. F. MATERIAL - COSTANDAVAILABILITY None G. TOOLING - PRICE ANDAVAILABILITY Fokker Bond tester model M70 or M80L Angle probe holder PN: MBB-APHID3814Bl Two part voltage adapter PN: MBB-TPVA-IDB/l Calibration standard set PN: 99A53307264000 NOTE: Equipment can be leased or purchased through Airbus Industrie on request. H. WEIGHT ANDBALANCE Not applicable I. REFERENCES Service Bulletin A300-53-206, A300-53-215, A300-53-216 A300 Nondestructive Testing Manual PART5, 53-30-40, NONE-SSI PART6, 53-30-10, NONE-SSI Aircraft Maintenance Manual 24-40-00 Structural Repair Manual 53-10-20 I Consigne de Navigabilite No. 89-061-092(B) J. PUBLICATIONS AFFECTED

DATE : Aug 29188 I REVISION No. : 4- 

### MARS0134 SERVICE BULLETIN No. : A300-53-229
Printed in France PAGE: 7/8

# CBA300 SERVICE BULLETIN

2. ACCOMPLISHMENT INSTRUCTIONS A. GENERAL To accomplish this Service Bulletin it is necessary to: 

### (I> (21 (3) (4) ELectrically ground aircraft (Ref. AMM24-40-00 P. Block 301). Gain access to passenger/crew compartment and cargo compartments. Open, safety and tag respective system circuit breakers and remove appropriate equipment to gain access to inspection areas. Remove and retain air conditioning channels LH and RHbetween FR33 and FR34 and between FR35 and FR36. (5) Remove and retain insulation mats in inspection areas. (6) Remove and retain overhead stowage compartments in inspection areas. B. INSPECTION 1 bonding inspection. Carry out an interna (I) Inspection area Refer to Figure 2 Inner doubler at rivet row 1 of all longitudinal joints with bonded doublers between FR18 and 80. (2) Inspection Method Bonding inspection from inside according to A300 NTMPART 5, 53-30-40, NONE-SSI Where necessary (Refer to Flow Chart 2, Figure 4): Eddy current crack inspection according to A300 NTMPART6, 53-30-10, NONE-SSI Crack inspection has to be performed from outside. (31 Inspection Frequency Refer to paragraph IB.

DATE : Aug 29188 I REVISION No. : 4- M%j0114 SERVICE BULLETIN No. : A300-53-229 Printed inFrance PAGE: 9/10

# SA300 SERVICE BULLETIN

C. DEBONDING CLASSIFICATION AND FOLLOW-UP ACTION (II Debonding Classification Debonding is divided into two classes MINOR and MAJORas shown in the table below and Figure 3. Number of debonded rivet pitches maximum 4 MINOR 5 or more MAJOR CRITICAL AREA maximum 4 5 or more maximum 4 5 or more MINOR MINOR MAJOR MAJOR MINOR MAJOR NOTE: To determine the actual classification of a frame bay, two
- values are to be taken into account: I) The number of dobonded rivet pitches in frame bay 2) The number of debonded rivet pitches in critical area. Whenever one of these values is equal or more than 5, the frame bay will be considered as major. NOTE: If the second rivet pitch, LH or RHof the frame, is found to be debonded, the first pitches, LH and RH, adjacent to the frame must be counted too. (2) Follow-up action Refer to Flow Chart, Figure 4.

DATE : Aug 29/88 I REVISION No. : 4- 

### f4AR30! 94 SERVICE BULLETIN No. : A300-53-229

Printed inFrance PAGE: 13

# CBA300 SERVICE BULLETIN K FRY FRZ



### FRX



## I FRZ



### FRX FRY FRZ

l IFTHE SECOND RIVET PITCH LH OR RH OF THE FRAME IS DEBONOED THE ADJACENT RIVET PITCH ATTHE FRAME HAS TO BE COUNTED AS DEBONDED TOO * DEBONDED RIVET PITCH

Examples of Debonding Classification

Figure 3, Sheet 1 of 2 DATE : Aug 29/88 I 

### REVISION No. : 4-WAR30!14 Printed inFrance SERVICE BULLETIN No. : A300-53-229 PAGE: 14

# CBA300 SERVICE BULLETIN

r 8tiet pitches - 

### FRX FRY F

### Ri

uitii area 8&t pitches 

### FRZ

l IFTHE SECOND RIVET PITCH LH OR RH OF THE FRAME ISDEBONDED THE ADJACENT RIVET PITCH ATTHE FRAME HAS TO BE COUNTED AS DEBONDED TOO y DEBONDED RIVET PITCH

Examples of Debonding Classification

Figure 3, Sheet 2 of 2 DATE : Aug 29/88 I REVISION No. : 4- 

### MAR3 oj94 Printed inFrance SERVICE BULLETIN No. : A300-53-229 PAGE: 15

# %A300 SERVICE BULLETIN

FOLLOW-UP ACTION AFTER DEBONDING FINDINGS



### MAJOR 

# P

THRESHOLD REPAIR *** OR CARRY OUT CRACK OF DEBONDED AREA

CARRY OUT CRACK INSPECTION OF DEBONDED AREA * AND REPEAT DEBONDING AND CRACK INSPECTION EVERY ** YEARS OR

REPAIR *** I

INSPECT DEBONDED AREA FOR DEBONDING PROPA- 

# i

GATION EVERY ** YEARS OR REPAIR ***
* PLUS 12RIVET PITCHES LH/RH OF DEBONDING AND INACCORDANCE WITH NTM PART 6,53-30-l O,NONE-SSI e ABOVE AND INCLUDING STAINGER 22 :2YEARS BELOW STRINGER 22 :1YEAR *** REPAIR TO BE PERFORMED INACCORDANCE WITH SRM 53-10-20, P.BLOCK 701.

FLOWChart 2 Figure 4
: Aug 29/88 SERVICE BULLETIN No. : A300-53-229 DATE REVISION No. : 4- 

### t~lAR30/34 Printed inFrance PAGE: 16

# CBA300 SERVICE BULLETIN

D. CLOSE-UP (I) Install retained insulation mats and appropriate equipment. (2) Install retained air conditioning channels between FR33 and FR34 and between FR35 and FR36. (3) Install retained overhead stowage compartments. (4) Remove safety clips and tags and close the respective system circuit breakers. (51 Remove access platforms and electrical ground connection. 3. MATERIAL INFORMATION None

DATE : Aug 29/88 I REVISION No. : 4- 

### MAE31!194 Printed inFrance SERVICE BULLETIN No. : A300-53-229 PAGE: 17

# GA300

DEBONDING CLASSIFICATION TEST RECORDOF LONGITUDINAL LAP JOINT INNER DOUBLERS
A/CMSN:
LAPJOINT STGRSRH

DATE : Aj:lI! j,(j,,/35 REVISION No. : Printed inFrance Appendix A300SB/53-229 Page 1 of 14

# GA300

AICMSN: DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT. DOUBLERS INTERNALSKIN DATE: RIVET ROW1

STGR13 RH

23-24

24-25 25-26

DATE : I:;pz i0;807 REVISION No. : Printed inFrance Appendix A300SB/53-229 Page 2 of 14DEBONDINGCUSSIFICATIONOFINNER CRACKINSPECT. A/C MSN: DOUBLERS INTERNALSKIN DATE: RIVET ROU1

DATE : .A?F i0,,'Ei 3 REVISION No. : PrintedinFrance Appendix A300SB/53-229 Page 3 of 14A/C MSN: DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT. DOUBLERS INTERNALSKIN DATE: RIVET ROW1.

DATE : Apr IO/89
m REVISION No. : 2- JUL 28/85’ Printed inFrance Appendix A300SB/53-229 Page 4 of 14

# @A300

DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT. A/C USN: DOUBLERS INTERNALSKIN DATE: RIVET ROW1 3 NO.OF NO BETWEEN LAPJOINT c FR DEBONDED ;EBON- ;;;& I;‘;;;;-

ii ...FR RIVET ;;;;E f;$;S REMARKS

PITCH DING DING DING INGS STGR6RH 76-77

77-78 18 78-79

AFTERACCOMDATE : Apr IO/89
I REVISION No. : 2- JUL 2!8/8y Appendix A300SB/53-229 Page 5 of 14 Printed iaFrance

# I A/CMSN:

LAPJOINT STGR43RH

STRG46 RH

STGR49 RH 14

13

14 BETWEEN FR... FR 26-27 27-28 28-29 29-30 30-31 31-32 32-33 33-34 34-35 35-36 36-37 37-38 38-38.1 38.1-38.2 38.2-39 19-20 20-21 21-22 22-23 23-24 24-25 25-26 26-27 27-28 28-29 29-30 30-31 31-32 32-33 33-34 34-35 35-36 36-37 37-38 DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT.

DOUBLERS INTERNALSKIN DATE: RIVET ROW1 NO.OF DEBoNDED ZBON- DEBON- DEBONMINOR MAJOR ;iAcK NO oF RIVET FIND- CRACKS REMARKS PITCH DING DING DING INGS

NOTTOBE INSPECTED AFTERACCOM- 'PLISHMENTOF SERVICE BULLETIN A300-53-206
-III-53-216

k0-53-215 or A3W-53-216.

DATE : Apr IO/89 1 REVISION No. : 2- JUL Z8/8? Printed in France Appendix A300SB/53-229 Page 6 of 14

# GA300

‘DEBONDING CLASSIFICATION OFINNER CRACKINSPECT. ’ A/C MSN: DOUBLERS INTERNAL SKIN DATE: RIVET ROW1

Printed in France Appendix A300SB/53-229 Page 7 of 14A/C MSN:

LAP JOINT

STGR13LH DEBONDINGCLASSIFICATIONOFINNER CRACK INSPECT. DOUBLERS INTERNALSKIN DATE: RIVET ROW1

17 66-67 67-68 68-69 69-70 70-71 71-72

DATE : ;;pg j,fl,'I" REVISION No. : Printed in France Appendix A300SB/53-229 Page 8 of 14

# GA300

A/C MSN:

LAPJOINT DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT. DOUBLERS INTERNALSKIN DATE: RIVET ROW

1 

### 5 NO.OF NO 2 BETWEEN z: FR

... FR DEBONDED ;FBON- ;:g;- ;:;;- RIVET DING DING DING ;;;;” ;;$K\ REMARKS L-7 PITCH INGS 26-27

14

54.1 -54.2 16 54.2- 54.3 54.3-55

DATE : ;;p" 1:J,'8" REVISION No. : Printed inFrance Appendix A300SB/53-229 Page 9 of 14A/CMSN:

LAPJOINT

STGR6LH 176-77

STGR17 LH

STGR.22LH 

# 5YEEN-I5 ..I

FR i-2 58-59

17 59-60 60-61 61-62 62-63 63-64 63-65 65-66 66-67 67-68 68-69 69-70 70-71 71 -72 DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT.

DOUBLERS INTERNAL SKIN DATE: RIVET ROW1 NO-OF DEBONDED &ON- MINOR MAJoR !iACK NO OF RIVET DEBON- DEBON- FIND- CR&S REMARKS PITCH DING DING DING INGS



### I I I I I

DATE : ,qi,1:: :j(ji'fyt ? REVISION No. : Printed inFrance Appendix A300Si3/53-229 Page 10 of 14

# @A300

A/CMSN:

LAPJOINT
STGRZZLH (CONTD)



# I

STGR24LH 

# s BETWEEN

F! FR ii ... FR 26-27 31-32 32-33 33-34 34-35 14 35-36 36-37 37-38 38-38.1 38.1-38.2 38.2-39 58-59

17 59-60 60-61 61-62 62-63 63-64 64-65 865-66 ~66-67 67-68 68-69 69-70 70-71 71-72 76-77 77-78 18 78-79 79-80 DEBONDINGCLASSIFICATIONOFINNER CRACKINSPECT.

DOUBLERS INTERNALSKIN DATE: RIVET ROW1 NO.OF NO DEBONDED RIVET ;&ON- i:g$- ;;;;;- PITCH DING DING DING ;;,";'i ;;$& REMARKS INGS

DATE : Apr IO/89 I REVISION No. : 2- J~j- 33/89 PrintedinFmme Appendix A300SB/53-229 Page 11 of 14A/C USN: DEBONDINGCLASSIFICATION OFINNER CRACKINSPECT. DOLBLERS INTERNALSKIN DATE: RIVET ROU1

64-65 65-66

DATE : ApF; i0,'8p REVISION No. : Printed inFrance Appendix A300SB/53-229 Page 12 of 14

# CGA300

A/C MSN :

LAPJOINT

STGR43 LH DEBONDING CLASSIFICATIONOF INNER



# /DOUQLERS /

%;igp:- 5 NO. OF ;1 BETWEEN DEBONDED ;&ON- DEZNMINOR MAJOR ;iACK NO oF
2 FR... FR RIVET DING DING DEBON- FIND- CRACKS PITCH DING INGS
67-68 68-69 17 69-70 DATE:

REMARKS

A300-53-216.

DATE : ~.(

p;“; j,0/3‘p REVISION No. : Printed inFrance Appendix A300SB/53-229 Page 13 of 14

# CGA300

A/CMSN:
LAPJOINT
STGR47 LH

STGR51 RH 14 27-28

28-29 29-30 30-31 31-32 32-33 33-34 34-35 35-36 37 -38 38 -38.1 38.1 -32.2 38.2 -39

REVISION No. : DEBONDING CLASSIFICATIONOF INNER CRACK INSPECT. DOUBLERS INTERNAL SKIN DATE: RIVET ROW1 NO-OF DEBONDED ;iBONRIVET PITCH DING MINOR MAJOR ;iAcK DEBON- DEBON- FINDDING DING INGS



## I

Printed in France NOTTOBE INSPECTED AFTER ACCOMPLISHMENTOF SERVICE BULLETIN A3W-53-204 %M-53-215 %Xl-53-216.

AFTER ACCOMPLISHMENTOF 

# ---I or

A300-53-216.

Appendix A300SB/53-229 Page 14 of 14