AIRBUS INDUSTRIE

CUSTOMERSERVICES DIRECTORATE aA300-600 1 Rond Point Maurice BELLONTE 31707 BLAGNACCEDEXFRANCE SERVICE BULLETIN Tel : (33) 61-93-33-33 Telex : AIRBU 530526 F SUMMARY

This summary is for information only and is not approved for

modification on the aircraft. TITLE : NACELLES/PYLONS - MODIFY RIB 5 IN THE PYLONBOX(RETROFIT

SOLUTION). 

### MODIFICATIONNo, 11109820987 ATASYSTEM: 54 

### REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES Two operators of A300 A/C fitted with GEengine pylons have reported cracks on the Lower side of rib 5 in the pylon box. The concerned area is similar on A300/600 A/C fitted with GEengine pylons. The cracks were encountered on aircraft which have Logged between 16,000 and 27,000 flight hours approximately. Investigations disclosed that these cracks are due to the stresses resulting from the pressure applied by the thrust reverser cowl bumpers. This Service Bulletin recommends the replacement of the stiffeners made out of bent extrusion by new thicker machined stiffeners. Accomplishment of this Service Bulletin is recommended on GECF6-8OC pylons at 15,000 flight hours, or at the next C-check for aircraft having reached 15,000 flight hours. Accomplishment of this Service Bulletin cancels requirements of 

### Inspection Service 

### Bulletin No. 

### A300-54-6034. EFFECTIVITY This Service Bulletin is applicable to the following customer(s) : AAL, CCA, CNW, DLH, FDX, IRA, KAC, MON, OAL, THA, UAE, XFand X0. 

### SERVICEBULLETINTOBEACCOMPLISHED PREVIOUSLY

ORSIMULTANEOUSLY None.

5 DATE : May 30/96 

### REVISIONNo. : SERVICEBULLETINNo. : A300-54-6031 PAGE: 1 of 4
Printed inFranceREFERENCES/REPERCUSSIONS

TFU OEB AOT SIL LIFE LIMIT 

### LINE MAINTENANCE AFFECTED OTHER
NATUREOFTHEWORK 

### AIRCRAFT : YES EQUIPMENT: NO HARD : NO SOFT : NO OBRM: NO
COMPLIANCE Recommended.
MANPOWER Per 

### pylon TOTAL MANHOURS 

### SERVICEBULLETIN SUMMARY

: 54-51-16-001
: None
: None
: None
: None
: NO
: None

ELAPSED

### TIME(HOURS) 32.0 26.0

DATE : May 30/96 

### REVISIONNo. : SERVICEBULLETINNo. : A300-54-6031 PAGE : 2
Printed inFrance

# t$A300-600 SERVICE BULLETIN SUMMARY MATERIAL INFORMATION AIRCRAFT DATA Qty per engine pylon : 3 fittings. EQUIPMENT DATA None.
APPENDICES None.

DATE : Nay 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 3
Printed inFranceSERVICE BULLETIN SUMMARY

GE PYLON

DATE : May 30% REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 4
Printed inFranceAIRBUS INDUSTRIE

CUSTOMERSERVICES DIRECTORATE G &30@600 1 Rond Point Maurice BELLONTE 31707 BLAGNACCEDEXFRANCE SERVICE BULLETIN Tel : (33) 61-93-33-33 Telex : AIRBU 530526 F

TITLE : NACELLES/PYLONS - MODIFY RIB 5 IN THE PYLONBOX(RETROFIT

SOLUTION). MODIFICATION No. 11109S20987 ATASYSTEM: 54

1. PLANNING INFORMATION A. EFFECTIVITY (1) Aircraft models : B4-601, B4-603, B4-605R, F4-605R. (2) Aircraft Customer and Fleet No. AAL050-084

CCA601-607 651-653 CNWOOI-003 DLH601-611
FDX650-661 663-665 667-669 IRA601,602 KAC601-605 MONOOI-004 OAL001,002

5 DATE : May 30/96 REVISION No. : MSN 423,455',460,420,461,462 463,465,466,469,470,471 474,506,507,508,509,510 511,512,513,514,515,516 517,606,610,612,615,619 626,639,643,645,675 521,525,532,707,732,746 754 709,713,715 725,741,763 380,391,401,405,408,411 414,546,553,618,623 726,728,735,736,738,742 745,748,752,757,759,760 766,768,769 771,772,774 723,727 673,694,699,719,721 540,556,604,605 632,696 Kit No. Qty 546031 of Kits A01 70

A01 14 A01 06 A01 06 A01 22
A01 24 A01 06 A01 06 A01 04 A01 IO A01 08 A01 04

SERVICE BULLETIN No. : A300-54-6031

PAGE: 1of 23
Printed inFrance

# 9A300-600

c SERVICE BULLETIN Customer and MSN Kit No. Qty Fleet No. 546031 of Kits THA051-058 368,371,377,384,395,398 A01 16

464,518 IJAEIOI-105 505,558,563,608,701 A01 IO 151 747 A01 02 XF501 744 A01 02 503,504 749,764 A01 04 x0 001,002 584,603 A01 04
This modification (Retrofit SoLution) is applicable by Service 

### Bulletin only. The modification No. 11110820983 (Production Solution) is embodied before 

### delivery onA/CMSN761, 767, 773, 775 and subsequent. NOTE1 : This Service 

### Bulletin is 

### applicable on aircraft equipped

with GEEand GEGengines. NOTE2 : Modification of one aircraft requires 2Kits 546031AOl. (3) Spares None.
B. REASON (I) History Two operators of A300 A/C fitted with GEengine 

### pylons have reported cracks on the 

### lower side of rib 5 in the pylon box. The concerned area is similar on A300/600 A/C fitted with GEengine 

### pylons. The 

### cracks were encountered on aircraft which have 

### logged between 16,000 and 27,000 

### flight hours approximately. Investigations disclosed that these cracks are due to the stresses resulting from the pressure applied by the thrust reverser 

### cowl bumpers. (2) Objective/Action This Service Bulletin recommends the replacement of the stiffeners made out of bent extrusion by new thicker machined stiffeners.

DATE : May 30/96 SERVICE BULLETIN No. : A300-54-6031 REVISION No. : PAGE: 2

# GA3000600

w SERVICE BULLETIN (3) Advantages The replacement of the stiffeners cancels requirements of Inspection Service Bulletin No. 

### A300-54-6034. (4) Operational/Maintenance Consequences None. (5) Accomplishment Timescale Accomplishment of this Service Bulletin is recommended on GECF6-80C pylons at 15,000 flight hours. C, DESCRIPTION To accomplish this Service Bulletin, it is necessary to : On the two pylons, in zones 

### 415-416 (left pylon) and 425-426 (right pylon) (1) Gain access to the working area. (21 Remove the ventilation duct between rib 2 and rib 7. (3) Lift the external mating strips between rib 3 and rib 5. (4) Remove the fittings and the shims at rib 5. (5) Install.the fitting and the shim at rib 5, left side. 

### (6) Install the fitting and the shim at rib 5, right side. (7) Install the external mating strips between rib 3 and rib 5. (8) Install the ventilation duct between rib 2 and rib 7.

DATE : May 30196 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 3
Printed inFrance

# GA3C?U-600 SERVICE BULLETIN D. APPROVAL The design data contained in this Service Bulletin has been approved under the authority of DGACDesign Organisation Approval No. C01. The changes specified in this Service 

### Bulletin have been approved by the DGACwhen they are major , or under the authority of DGACDesign Organisation Approval No. C01, when they are minor.
E. MANPOWER This Service Bulletin is written for an aircraft in a maintenance condition. The manhours/elapsed time estimates do not include the time to prepare for the modification, non-productive elapsed time or administration. Kit No. 546031AOl is 

### valid for one 

### pylon. Gain 

### access Remove/install the thrust reverser cowls 

### Remove/install the ventilation duct Lift/install the mating strips Remove the fittings and the shims 

### Install the fitting and the shims Tests 

### Close-up TOTAL MANHOURS ELAPSED

### TIME(HOURS)

DATE : May 30/96 

### REVISIONNo. 

### : 5.0 6.0 2.5 4.0 3.5 6.0 1.0 4.0 32-O 26.0

SERVICE BULLETIN No. : A300-54-6031

PAGE: 4
Printed inFrance

# $411300-600
SERVICE BULLETIN F.

G.

H.

I. MATERIAL - COSTANDAVAILABILITY (1) Material Customers with aircraft shown in paragraph l.A.iZ) should send a purchase order to Airbus Industrie. Quote the number of this Service Bulletin. The address is :

AIRBUS INDUSTRIE MATERIEL SUPPORTCENTER P-0. BOX63 02 62 22312 HAMBURG GERMANY (2) Cost and availability Kit No. cost Availability : Calendar (US Dollars) days from receipt of order
546031AOl 2450 150 NOTE : The sales terms (costs and availability) are estimated in

relation to economic conditions at the issue date of the Service Bulletin.
TOOLING - PRICE ANDAVAILABILITY Accomplishment of this Service Bulletin entails use of tools described in AMM71-13-03, P. Block 401.
WEIGHTANDBALANCE Manufacturers Empty Weight : +0.832 kg (+ 1.834 Lb) Effect on balance : +22.107 kgm (+ 159.899 Lb.ft)
REFERENCES Aircraft Maintenance Manual (AMM) : 06-41-54, 20-21-12, 24-00-00, 24-41-00, 36-11-00, 36-11-15, 71-13-03 Structural Repair Manual (SRM) : 51-40-21, 51-40-44, 51-40-47 Consumable Material List (CML) Service Bulletin : A300-54-6034
DATE : May 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 5
PrintedinFranceSERVICE BULLETIN

J. PUBLICATIONS AFFECTED Structural Repair Manual (SRM> : 54-51-16

DATE : May 30/96 REVISION No, : SERVICE BULLETIN No. : A300-54-6031 PAGE : 6
Printed inFrance

# 9A300-600 SERVICE BULLETIN 2. ACCOMPLISHMENT INSTRUCTIONS A. GENERAL (I) Preparation (a) De-energize the aircraft electrical circuits (Refer to AMM24-41-00, P. Block 301). (b) Electrically ground the aircraft (Refer to AMM24-00-00, P. Block 301). (c) Put the access platforms in position to get access to the engine pylons. Cd) Remove the access doors 413BL, 415AL, 416AR (Left pylon) and access doors 423BL, 425AL, 426AR (right pylon) (Refer to AMM06-41-54). (e> Remove the thrust reverser cowls (Refer to AMM71-13-03, P. Block 401). (f) Remove the bleed air precooler (Refer to AMM36-11-15, P. Block 401). (g) Remove the bleed air precooler cold air inlet duct (Refer to AMM36-11-00, P. Block 401). (2) Standard Practices (a) To clean the surfaces to be sealed with Methyl-Ethyl-Ketone, Mat. No. II-003 (Refer to CML). (b) To torque standard threaded fasteners (Refer to AMM20-21-12). (c) To remove and install the fasteners (Refer to SRM51-40-21). Cd) To drill and deburr holes (Refer to SRM51-40-44). (e) To countersink the holes (Refer to SRM51-40-47). (f) To shorten the rivets as required.

DATE : May 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 7
Printed inFrance

### SERVICEBULLETIN



### B.MODIFICATION On-the two pylons, in zones 415-416 Cleft pylon) and 425-426 (right Won), reinforce the fittings at rib 5. NOTE : The description is given for the left engine 

### pylon. The procedure

is the same for right engine 

### pylon. (I) Remove the ventilation duct between rib 2 and rib 7. Refer to Figure 1 (a) Remove : 2 screws Item (20) (retain) 2 washers Item (IO) (discard) 2 clamps Item (21) (retain> 1 duct Item (22) (retain) (2) Lift the 

### external mating strips between rib 3 and rib 5. Refer to Figure 2 (a) From the outside of the 

### pylon, lift : 1+ I mating strip Item (16) To do this, remove : 2 + 2 rivets 18 + 18 rivets 

### Item (14) 

### (discard) Item (15) (discard) NOTE1 : 

### It is necessary 

### to lift the mating strips to make it

possible to remove the two upper fasteners of fittings 

### Items 2and 3 and to countersink these holes. Remove more rivets, if necessary to prevent damage of the part. NOTE2 

### : Install wedges to keep the mating strips lifted.

DATE : May 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031

1 PAGE: 8

PrintedinFranceSERVICE BULLETIN (3) Remove the fittings and the shims at rib 5. Refer to Figure 3 (a) From the outside of the pylon, remove : 1+ 1 shim 2+ 2 screws 1+ 1 screw 1 screw, L side 1screw; Rside 2+ 2 washers 1+ 1 washer. 1washer, L side 1washer, Rside 2+ 2 nuts 1+ 1 nut 1nut, 

### Lside 1nut, Rside (b) From the inside of the 

### pylon, remove : 1fitting 1 fitting 1 fitting 15 rivets 

### 22rivets 17 screws 17 washers 17 nuts 1 screw 1washer 1 nut Item (23) (retain) Item (24) (retain) Item (25) (retain) Item (26) (retain) Item (7) (discard) Item (27) (retain) Item (281 (retain) 

### Item (28) (retain) Item (11) (discard) 

### Item (8) (discard) Item (13) (discard) 

### Item (13) (discard) Item (9) (discard)

Item (I) (discard) Item (2) (discard) 

### Item (3) (discard) 

### Item (121 (discard) 

### Item (5) (discard) Item (61 (discard) Item (29) (discard> 

### Item (8) (discard> Item (7) (discard) 

### Item (11) (discard) 

### Item (9) (discard) NOTE

### : Be

### careful when you remove the rivets Item (121, not to

damage the rivet holes as rivets of the same dimension 

### will be 

### installed. (4) Install the fitting and the shim on the left side of the pylon at rib 5. Refer to Figure 4 (a) From the inside of the pylon 

### at rib 

### 5,onthe lateral panel and in front of the stiffener, put in position and temporarily attach : 1 fitting A5461277820000 Item 3

DATE : May 30/96 

### REVISIONNo. 

### : SERVICEBULLETIN No. : A300-54-6031 PAGE: 9
Printed inFrance

# ~6300-600 SERVICE BULLETIN (b) 

### Drill the fitting 

### Item 3 to match the 

### holes in the pane

### 1. lateral 1holes as 

### Usethe table given in Figure 4 and countersink the written in Para. 2.A.C2)(e). 

### (cl Clean the 

### drilled area. (d>Attach the fitting Item 3 with : 8 screws NAS1153E3 

### Item 16 3screws NAS1153E4 

### Item 5 11 nuts NASlf26C3E Item 8 

### (e) Drill the fitting 

### Item 3 to match the 

### holes in the stiffener. Use the 

### table given in Figure 4. (f) Produce a 0.3 mmCO.0118 in.) to 0.5 mm(0.0197 in.) chamfer at 

### 45” on the 

### holes. (g) Clean the drilled area. (h) Attach the fitting 

### Item 3 with : 

### 17screws NAS6703U3X 

### Item 6 17 nuts NAS1726C3E 

### Item 8 (i> From the outside of the 

### pylon at.rib 5, on the 

### lateral panel, put in position and attach : 1 shim 

### 2screws 1 screw 1 screw 2 washers 2 washers 2 nuts 2 nuts NASl726C3E

ASNA2021C4E Item (23) 

### Item (24) Item (25) Item (26) Item (27) 

### Item (28) Item 8 

### Item 13 NOTE : 

### Items (231, (241, (251, (261, (271 and (28) were

retained at removal. 

### (5) Install the fittings and the shim on the right side of 

### thepylon at rib 5. Refer to Figure 5 (a) From the inside of the 

### pylon at rib 5, on 

### the lateral panel, in front of the upper stiffener, put in position and temporarily 

### attach : 1 fitting 

### A5461277620000 Item 2
DATE : Nay 30/96 

### SERVICEBULLETINNo. :A300-54-6031 REVISIONNoi 

### : PAGE: 10 <
PrintedinFranceSERVICE BULLETIN (b> Drill the fitting Item 2 to match the 

### holes in the panel. Latera Use the 

### table given in Figure 5 and countersink the written in Para. 2.A.l2>(e>. holes 

### as (c) Clean the 

### drilled area. Cd) Attach the fitting Item 2 with : 11 screws NAS1153E4 Item 5 11 nuts NAS1726C3E 

### Item 8 

### (e) Drill the fitting 

### Item 2 to match the 

### holes in the upper stiffener. Use the 

### table given in Figure 5. (f) 

### Clean the 

### drilled area. (g) Attach the fitting Item 2 with : 5 rivets NSA5415-40-11 

### Item 12 (h) From the inside, on the lateral panel, behind the 

### lower stiffener and the fitting 

### Item 2, put in position and temporarily attach : - 1 fitting A5461277220000 

### Item 1 (i) Drill the fitting 

### Item 1 to match the 

### holes in the 

### panel and in the lower stiffener. Use the 

### table given in Figure 5. 

### Cj) Clean the 

### drilled area. (k) Attach the fitting 

### Item 1with : 5 screws NAS6703U4 

### Item 4 1 screw NAS6704U15X 

### Item 7 5 washers NSA5379-3C 

### Item 10 

### 1washer ASNA2394EW4 

### Item 11 5 nuts NAS1726C3E 

### Item 8 1 nut NAS1727C4E 

### Item 9 Latera 

### 1

1

(1) Drill the fitting Item 1 to match the 

### hole in the fitting Item 2 and 

### drill the fitting Item 2 to match the 

### holes in the fitting 

### Item 1. 

### Usethe 

### table given in Figure 5. (rn) 

### Clean the 

### drilled area.

DATE : May 30/96 

### REVISIONNo. 

### : SERVICEBULLETINNo. 

### : A300-54-6031 PAGE: 11
Printed inFrance

# 63A3000600 SERVICE BULLETIN (n> Attach the fittings Items 1and 2 with : 5 rivets NSA5415-40-11 Item 12 (01 From the outside of the pylon at rib 5, on the 

### lateral panel, put in position and attach : 1 shim 

### 2screws 1 screw 1 screw 2 washers 1washer 1washer 2 nuts 1nut 1nut NAS6707UlSX

ASNA2394EW4 NASl726C3E ASNA2021C4E NAS1727C4E 

### Item (23) Item (24) Item (25) Item 7 Item (27) Item (28) Item 11 Item 8 Item 13 Item 9 NOTE : 

### Items (231, (241, (251, (27) and (28) were retained at 

### removal. (6) Install the external mating strips between rib 3 and rib 5. Refer to Figure 2 (a> From the outside of the pylon, 

### drill the mating strips 

### Item (16) and the 

### lateral panels. Use the 

### table given in Figure 2. (b1 Countersink the holes as written in Para. 2.A.(Z)(e). (c) Attach the mating strips 

### Item (16) with : 2 + 2 rivets NSA5414-48-11 

### Item 14 18+ 18 rivets NSA5414-32-07 

### Item 15 (7) Install the 

### ventilation duct between rib 2 and rib 7. Refer to Figure 1 

### (a>Install : 2screws 

### Item (20) 2 washers NSA5379-SC 

### Item 10 

### 2clamps Item (21) 1 duct 

### Item (22) NOTE : 

### Items (201, (21) and (22) were retained at removal.

DATE : May 30/96 

### REVISIONNo. : SERVICEBULLETINNo. :A300-54-6031 PAGE: 12
Printed inFrance

# $2A300-600 * SERVICE BULLETIN C. TESTS (1) Preparation for the tests (a> Install the bleed air precooler cold air inlet duct (Refer to AMM36-11-00, P. Block 401). 

### lb) Install the bleed air precooler (Refer to AMM36-11-15, P. Block 401). (c) Install the thrust reverser cowls (Refer to AMM71-13-03, P. Block 301). (d) Disconnect the aircraft electrical ground connection (Refer to AMM24-00-00, P. Block 301) and energize the aircraft electrical circuits (Refer to AMM24-41-00, P. Block 301). (2) Tests (a> Do the Leakage check of the pneumatic duct and precooler connections (Refer to AMM36-11-00, P. Block 601). (b) Do the adjustment/test of the thrust reverser cowl (Refer to AMM71-13-03, P. Block 501).
D. CLOSE-UP (I) Make sure that the work areas are clean and clear of tools and other items of equipment. (2) Install the access doors 413BL, 415AL, 416AR (left pylon) and the access doors 423BL, 425AL, 426AR (right pylon) (Refer to AMM06-41-54). (3) Remove the access platform(s).


### E. DOCUMENTATION Write in the applicable 

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

DATE : May 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 13
Printed inFranceSERVICE BULLETIN

3 m LEFT SIDESHOWN

RIGHT SIDE IDENTICAL 

## Removal/Installation of the Ventilation Duct between Rib 2 and Rib 7 Figure 1
DATE : Nay 30196 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 14 Printed inFrance

# $2A300-600 * SERVICE BULLETIN

3. MATERIAL INFORMATION A. LIST OF COMPONENTS ITEM NEWPARTNo. QTY KEYWORD ITEM OLDPARTNo. INT INST DISP Kit No. 546031AOl

: 3 4 5 6 7 8 9 10 II 12 13 14 15 16 A5461277220000 1 Fitting (I) A5461100521000 * A5461277620000 1 Fitting (2) A5461176950200 * A5461277820000 1 Fitting (3) A5461176950000 * NAS6703U4 5 Screw NAS1153E4 14 Screw NAS6703U3X 17 Screw NAS6704UlSX 2 Screw NAS1726C3E 48 Nut NAS1727C4E 2 Nut NSA5379-3C 7 Washer ASNA2394EW4 2 Washer NSA5415-40-11 10 Rivet ASNA2021C4E 3 Nut NSA5414-48-11 4 Rivet NSA5414-32-07 36 Rivet NAS1153E3 8 Screw NOTE* : Discard
B. SPECIAL TOOLS None. 

### C.LISTOFMATERIALS-OPERATOR'SUPPLIED DESCRIPTION REFERENCETOCML QTYPERA/C Methyl-Ethyl-Ketone Mat. No. II-003 As required
D. PARTSTOBE

### RE-IDENTIFIEDBYOPERATOR None.

. DATE : May 30/96

REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 23
PrintedinFranceAIRBUS INDUSTRIE

CUSTOMERSERVICES 

### DIRECTORATE ~A30&6~~ 1 Rond Point Maurice BELLONTE 31707 BLAGNACCEDEXFRANCE SERVICE BULLETIN Tel : (33) 61-93-33-33 Telex : AIRBU 530526 F

TITLE : NACELLES/PYLONS - MODIFY RIB 5 IN THE PYLONBOX(RETROFIT

SOLUTION). MODIFICATION No. 11109820987 ATASYSTEM : 54

IS BEING HEREWITH SUBMITTED TOYOUFORREVIEW Please fill : I.. REJECTED .I. WILL BEEMBODIED 1.1 EFFECTIVITY

This SBcan only be incorporated in your "customized" documentation within the agreed time schedule if this sheet is returned to us on purchase date and signed by a duly authorized and empowered officer or representative.

FROM: Please return to : AIRLINE :

..................~. NAME: AIRBUS INDUSTRIE CUSTOMERSERVICES DIRECTORATE 1 Rond Point Maurice BELLONTE 31707 BLAGNACCEDEXFRANCE Tel : (33) 61-93-33-33 Telex : AIRBU 530526 F ..1..1.........11... DATE:

................19..

5 DATE : May 30/96 REVISION No. : SERVICE BULLETIN No. : A300-54-6031 PAGE: 1of 1
Printed inFrance