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SERVICE BULLETIN ATR42 Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page TS-1 of TS-2
TRANSMITTAL SHEET Original issue This page transmits Original issue of Service Bulletin No. ATR42-27-0112.
General information concerning this document is available in Service Letter No. ATR42-00-5009.
TITLE: Flight controls - Stabilizer - Inspection of bonding braids installation
ATR. All rights reserved. Confidential and proprietary document.
This document shall not be reproduced or disclosed to a third party without the written consent of ATR. This document and its content shall not be used for any purpose other than that for which it is supplied.
ATR, its logo, the distinctive ATR aircraft profiles and patented information relating to the ATR aircraft are the exclusive property of ATR and are subject to copyright. This document and all information 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 06/19 Service Bulletin No. ATR42-27-0112
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-3 PLANNING INFORMATION ............................................................................. Page PI-1 to PI-3 MATERIAL INFORMATION ............................................................................ Page MI-1 to MI-2 ACCOMPLISHMENT INSTRUCTIONS ............................................................ Page AI-1 to AI-3 TYPE DESIGN RECOVERING ...................................................................... Page TR-1 to TR-1 ILLUSTRATIONS .............................................................................................. Page IL-1 to IL-2
2 – REVISION SEQUENCES
Issue or Revision Date Additional work
Original issue Aug 06/19 -
SERVICE BULLETIN ATR42 Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page AR-1 ATR. All rights reserved. Confidential and proprietary document.
ACCOMPLISHMENT REPORT SERVICE BULLETIN No. ATR42-27-0112 Original issue TITLE: Flight controls - Stabilizer - Inspection of bonding braids installation Send this report to: ATR RETROFIT ENGINEERING 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-aircraft.com Aircraft identification Aircraft MSN (on which this Service Bulletin has been accomplished):
Aircraft registration number:
Flight cycles:
Flight hours:
Accomplishment date of this Service Bulletin:
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page AR-2 ATR. All rights reserved. Confidential and proprietary document.
Inspection results Tick () the appropriate box YES NO
(1) In zone 334, inspection of bonding braid Is there 25 mm between the axis of the bonding braid screw and the Y axis?
If “NO”, report the measurement result
Is there damage on the pitch tab rod?
If “YES” send mapping of measurement with the depth of the damage.
Has the pitch tab rod been replaced?
(2) In zone 344, inspection of bonding braid Is there 25 mm between the axis of the bonding braid screw and the Y axis?
If “NO”, report the measurement result Is there damage on the pitch tab rod?
If “YES” send mapping of measurement with the depth of the damage.
Has the pitch tab rod been replaced?
Remarks:
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page AR-3 ATR. All rights reserved. Confidential and proprietary document.
Maintenance organisation identification Maintenance organisation name:
Name & Signature:
Date:
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page PI-1 ATR. All rights reserved. Confidential and proprietary document.
COMPLIANCE: RECOMMENDED INSPECTION: 001/2019
TITLE: Flight controls - Stabilizer - Inspection of bonding braids installation
1. PLANNING INFORMATION A. EFFECTIVITY
(1) Aircraft models ATR42-200 ATR42-300 ATR42-320 ATR42-400 ATR42-500
NO NO NO NO YES
(2) Aircraft MSN Kit(s) 1216, 1217, 1218, 1219, 1401, 1402, 1404 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.
(3) Spares The following stock items are modifiable (or not) according to the table below.
None.
B. REASON In ATR final assembly line, it has been discovered, on the stabilizer, an interference between bonding braid screws and the pitch tab rods. Accomplishment of this Service Bulletin consists in inspecting the installation of the bonding braid screws and to replace the pitch tab rods if damaged.
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page PI-2 ATR. All rights reserved. Confidential and proprietary document.
COMPLIANCE: Accomplishment of this Service Bulletin is recommended by ATR.
C. DESCRIPTION The following flowchart presents the work to be done in a simplified way, details are described in paragraphs "ACCOMPLISHMENT INSTRUCTIONS" and "TYPE DESIGN RECOVERING".
The following flowchart is only presented for one side.
D. APPROVAL The technical content of this document is approved under the authority of DOA ref. EASA.21J.044.
YES YES Contact ATR to obtain an approved solution Inspection of bonding braid installation Is bonding braid screw installed as per design?
NO NO Is there damage on the pitch tab rod?
Replace the pitch tab rod No further action regarding inspection and type design recovering No further action regarding inspection and type design recovering
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page PI-3 ATR. All rights reserved. Confidential and proprietary document.
E. MANPOWER Minimum Manhours (1) Maximum Manhours (2) Mechanic 1 2 Electrician None None Total manhours 1 2 Elapsed time (hours) 1 2
(1) For inspection only
(2) For inspection and type design recovering
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 inspection, non-productive elapsed time or administrative functions.
F. WEIGHT AND BALANCE None.
G. REFERENCES The following publications have to be used during accomplishment of this Service Bulletin:
AMM : 06-41-30
AMM (JIC) : 27-31-41 RAI 10000
H. AFFECTED PUBLICATIONS
(1) Maintenance documentation None.
(2) Operational documentation None.
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page MI-1 ATR. All rights reserved. Confidential and proprietary document.
2. MATERIAL INFORMATION A. MATERIAL - COST AND AVAILABILITY
(1) Material Parts cost and availability, or any further commercial information about Service Bulletin, may be consulted through ATRactive or operator should contact ATR at the following addresses:
www.atractive.com
ATR CUSTOMER SERVICES
SPARES SUPPORT 1 ALLEE PIERRE NADOT 31712 BLAGNAC CEDEX FRANCE e-mail : spares.toulouse@atr-aircraft.com
Or operator should contact the ATR center it is related to, according to its operational area, at the following addresses:
ATR Americas, Inc.
4355 NW 36th St.
Miami Springs, FL 33166 USA phone : +1 (305) 704 9809 fax : +1 (305) 704 9806 e-mail : commercial.services.miami@atr-aircraft.com
ATR EASTERN SUPPORT Pte Ltd.
51 CHANGI BUSINESS PARK CENTRAL 2 #08-02 THE SIGNATURE SINGAPORE 486066 phone : +65 6542 0122 fax : +65 6542 1047 e-mail : commercial.services.singapore@atr-aircraft.com
Operator should place a purchase order specifying parts reference through ATRactive or to the ATR center it is related to according to its operational area.
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page MI-2 ATR. All rights reserved. Confidential and proprietary document.
B. LIST OF COMPONENTS Item Part Number Qty Description
Material
3 S2738197100600 2* Pitch tab rod
* Quantities depend on inspection results (maximum quantity indicated).
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 06/19 Service Bulletin No. ATR42-27-0112
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) On 121VU, open, safety and tag the following circuit breakers 11CG FLT CTL/TRIM/PITCH/NORM 12CG FLT CTL/TRIM/PITCH/STBY
(2) In the cockpit, display WARNING NOTICE to prohibit operation on the flight controls.
(3) Install access platforms at the level of elevators.
(4) In zones 334 and 344, remove fairings 334AB and 344AB (Refer to AMM 06-41-30).
C. INSPECTION NOTE: During accomplishment of this Service Bulletin, fill the enclosed Accomplishment Report and send it to the address mentioned on the Accomplishment Report.
SERVICE BULLETIN ATR42
Original issue - Aug 06/19 Service Bulletin No. ATR42-27-0112
Page AI-2 ATR. All rights reserved. Confidential and proprietary document.
(1) In zones 334 and 344, inspection of bonding braid screws installation As per Figure 1, inspect all the parts listed in the following table.
INSPECTION Item Description Part Number Qty Figure
1 Bonding braid - 2 1 2 Bonding braid screw - 2 1
INSPECTION OBJECT:
Inspection of the installation of the bonding braid screw item 2.
RESULT
ACTION TO BE
PERFORMED
Is there 25 mm between the axis of the bonding braid screw and the Y axis?
YES Perform paragraph 3.E.
NO Contact ATR to obtain an approved solution and perform paragraph 3.C.(2)