# SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page TS-1 of TS-2 

### TRANSMITTAL SHEET Original issue

This page transmits Original issue of Service Bulletin No. ATR42-25-0180. General information concerning this document is available in Service Letter No. ATR42-00-5005.



### TITLE : Equipment/Furnishings - Overhead stowage compartments - Removal of fittings at level of type III emergency exit doors

© ATR. All rights reserved. Conf idential and proprietary document.
This document shall not be reproduced or disclosed to a third party without the written consent of AT R. This document and its content shall not be used for any purpose other t han that for which it is supplied. ATR, its logo, the distinctive ATR aircraft profiles and patented information relating to the ATR aircraft are the excl usive property of ATR and are subject to copyright. This document and all in formation contained herein are the sole property of ATR. No intellectual property right is granted through, or induced by, the delivery of this document or the disclosure of its content.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page TS-2 of TS-2
© ATR. All rights reserved. Confidential and proprietary document. 1 – TABLE OF CONTENTS TRANSMITTAL SHEET ...................................................................................Page TS-1 to TS-2 ACCOMPLISHMENT REPORT ...................................................................... Page AR-1 to AR-1 PLANNING INFORMATION............................................................................... Page PI-1 to PI-4 MATERIAL INFORMATION.............................................................................. Page MI-1 to MI-1 ACCOMPLISHMENT INSTRUCTIONS ............................................................. Page AI-1 to AI-2 ILLUSTRATIONS................................................................................................ Page IL-1 to IL-1

2 – REVISION SEQUENCES

Issue or Revision Date Additional work
Original issue Aug 19/13 -

# SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page AR-1
© ATR. All rights reserved. Confidential and proprietary document.



### ACCOMPLISHMENT REPORT SERVICE BULLETIN No. ATR42-25-0180 Original issue

Send this report to:
ATR ENGINEERING SERVICE BULLETIN GROUP 1 ALLEE PIERRE NADOT 31712 BLAGNAC CEDEX FRANCE phone : +33 (0)5 62 21 62 21 fax : +33 (0)5 62 21 69 41 e-mail : techdesk@atr.fr

Aircraft identification Service Bulletin accomplished on aircraft MSN: Service Bulletin accomplishment date: Aircraft registration number: Number of flights: Flight hours:

Maintenance organisation identification Maintenance organisation name: Name & Signature:

Date:

# SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page PI-1
© ATR. All rights reserved. Confidential and proprietary document. COMPLIANCE : RECOMMENDED MODIFICATION : 07152 L2248



### TITLE : Equipment/Furnishings - Overhead stowage compartments - Removal of fittings at level of type III emergency exit doors

1. PLANNING INFORMATION
A. EFFECTIVITY (1) Aircraft models The approved change used to generate this document has been certified on the following ATR42 models:

ATR42-200 ATR42-300 ATR42-320 ATR42-400 ATR42-500
NO NO NO NO YES

(2) Aircraft

MSN Kit(s)
859, 1001, 1003, 1004 None For each aircraft MSN, operator should order the mentioned kit(s). Other parts or equipment could be required for embodiment of this Service Bulletin. Please refer to chapter "MATERIAL INFORMATION" for details.
NOTE 1 : This Service Bulletin is applicable only on aircraft equipped with the modification No. 06518.
NOTE 2 : The following MSN are not concerned by this Service Bulletin, the removal of the fittings is performed through concessions:

- MSN 1002, concession No. TR-004399299,

- MSN 1005, concession No. TR-004399338.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page PI-2
© ATR. All rights reserved. Confidential and proprietary document. (3) Spares The following stock items are modifiable (or not) according to the table below.

None.

B. REASON It has been detected a case of interference/insufficient gap between a type III emergency exit door and the overhead stowage compartment fitting installed on the rail. In order to restore acceptable gap allowing the opening of the type III emergency exit doors, accomplishment of this Service Bulletin consists in:

- removing the fittings at level of the LH and RH type III emergency exit doors,

- verifying the resulting clearance between the doors and the overhead stowage

compartment hooks.
COMPLIANCE : Accomplishment of this Service Bulletin is recommended by ATR.

C. DESCRIPTION Accomplishment of this Service Bulletin consists in carrying out the following jobs: (1) In zones 221 and 222, on lateral rails, removal of fittings

D. APPROVAL The technical content of this document is approved under the authority of DOA No. EASA.21J.044.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page PI-3
© ATR. All rights reserved. Confidential and proprietary document. E. MANPOWER

Manhours
Mechanic 1 Electrician None
Total manhours 1 Elapsed time (hours) 1
The above estimates are only provided for general guidance in operator's modification planning.
NOTE : This Service Bulletin assumes that the aircraft has been placed in the appropriate maintenance configuration. The manhours/elapsed time estimates do not include preparation for the modification, non-productive elapsed time or administrative functions.

F. WEIGHT AND BALANCE MEW : - 0.034 kg (- 0.075 lb) Effect on balance: - 0.286 kg.m (- 24.823 lb.in)

G. REFERENCES The following publications have to be used during accomplishment of this Service Bulletin: AMM (JIC) : 24-40-00 EAD 10000 52-21-00 RAI 10000 The following modifications and/or retrofit documents are mentioned on this Service Bulletin:

Modification Retrofit document Title

06518 - EQUIPMENT/FURNISHINGS - INSTALL ARMONIA CABIN ON ATR42 STANDARD CONFIGURATIONSERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page PI-4
© ATR. All rights reserved. Confidential and proprietary document. H. AFFECTED PUBLICATIONS (1) Maintenance documentation The following maintenance manuals will be updated after receipt of the Accomplishment Report by ATR: AMM (JIC) : 25-24-21

IPC : 25-23 (2) Operational documentation

None.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page MI-1
© ATR. All rights reserved. Confidential and proprietary document. 2. MATERIAL INFORMATION
A. MATERIAL - COST AND AVAILABILITY

None.

B. LIST OF COMPONENTS

None.

C. LIST OF MATERIALS - OPERATOR SUPPLIED

None.

D. SPECIAL TOOLS Accomplishment of this Service Bulletin requires use of the following special tools:

None.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page AI-1
© ATR. All rights reserved. Confidential and proprietary document. 3. ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL The following instructions assume that work will be accomplished when the aircraft is in the appropriate maintenance configuration.

B. JOB SET-UP (1) De-energize the aircraft electrical network and connect the aircraft to ground as per AMM (JIC) 24-40-00 EAD 10000. (2) Remove LH and RH emergency exit doors as per AMM (JIC) 52-21-00 RAI 10000.

C. MODIFICATION (1) In zones 221 and 222, on lateral rails, removal of fittings (a) Remove all the parts listed in the following table. Carefully follow the specific instruction(s) detailed after the table.

REMOVAL

Item Description Part Number Qty Discarded Qty Re-used Figure

1 LH fitting S2522924620000 1 - 1 2 RH fitting S2522924620100 1 - 1 3 Screw NAS1801-3-8 4 - 1 4 Washer ASNA2397-10L 4 - 1 5 Nut ASNA2871-3 4 - 1

Specific instruction(s) :

- Untighten the eight screws, item 6 of the four overhead stowage compartment

hooks item 7 and push upwards the hooks in order to remove the fittings item 1 and item 2.SERVICE BULLETIN ATR42

Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180 Page AI-2
© ATR. All rights reserved. Confidential and proprietary document. - Lift to the maximum the end of the hooks item 7 and tighten the eight screws

item 6. (b) Re-install the LH and RH emergency exit doors as per AMM (JIC) 52-21-00 RAI 10000. (c) Open the LH and RH emergency exit doors and rotate them with the doors remaining on the lower fittings. Verify that the gap between the doors and the four overhead stowage compartment hooks item 7 (Refer to Figure 1) is 6 mm (0.236 in) minimum. If the gap is less than 6 mm (0.236 in) contact ATR at the following address:
ATR TECHDESK 1 ALLEE PIERRE NADOT 31712 BLAGNAC CEDEX FRANCE phone : +33 (0)5 62 21 65 61 fax : +33 (0)5 62 21 62 32 e-mail : techdesk@atr.fr (d) Re-install the LH and RH emergency exit doors as per AMM (JIC) 52-21-00 RAI 10000.

D. TESTS (1) Verify that tests required by maintenance documents (AMM (JIC) 52-21-00 RAI 10000) mentioned on previous paragraph "MODIFICATION" have been performed.

E. CLOSE-UP (1) Re-energize the aircraft electrical network and disconnect the aircraft from ground as per AMM (JIC) 24-40-00 EAD 10000.SERVICE BULLETIN ATR42Original issue - Aug 19/13 Service Bulletin No. ATR42-25-0180Page IL-1©ATR. All rights reserved. Confidential and proprietary document.ILLUSTRATIONSIn zones 221 and 222, on lateral rails,removal of fittingsFigure 1