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AD/TBM 700/48 Airworthiness Directives/Pt 105 — Aircraft as made
Main Landing Gear Wheel Axle
Administered by: DOTARS
Exempt from sunsetting by the Legislative Instruments Act 2003 s 54(2) item 9
Registered 06 Aug 2007
Tabling HistoryDate
Tabled HR08-Aug-2007
Tabled Senate09-Aug-2007
Date of repeal 24 Sep 2007
Repealed by AD/TBM 700/48 Amdt 1 - Main Landing Gear Wheel Axle

 

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Aerospatiale (Socata) TBM 700 Series Aeroplanes

AD/TBM 700/48

Main Landing Gear Wheel Axle

10/2007 TX

 

Applicability:

Model TBM 700C and TBM 850 aircraft, with serial numbers up to and including 408, with main landing gear wheel axle batch numbers CZ52790, or CZ62189, CZ64034, or CZ66207, installed.

Note:  Any marking different from D67690 CZXXXXX is not affected by this Directive.

Requirement:

1.    Check each main landing gear (MLG) wheel axle batch number in accordance with the Accomplishment Instructions of EADS Socata Alert Service Bulletin (ASB) SB 70-151-32 paragraph A.

If the batch number of the MLG wheel axle is not a batch number specified in the applicability section of this Directive, the aircraft can be released into service.

If the batch number of the MLG wheel axle is a batch number specified in the applicability section of this Directive, accomplish ASB SB 70-151-32 paragraph B, “Checking procedure of axle conformity”. If the axles are in compliance, the aircraft can be released into service.

One Ferry-flight is authorised after verification of the nut tightening in accordance with ASB SB 70-151-32 paragraph C “Checking procedure of nut tightening”, to re-locate to a maintenance repair station equipped with the inspection tool (Ref. SKT40716-118) necessary for accomplishment of ASB SB 70-151-32 paragraph B.

2.    If one of the axles is not in compliance following the inspection with the specific tool (Ref. SKT40716-118), replace the original locking washer with a suitable locking washer (part number SKW40716-118) and identify the axle with inscription “SB 70-151-32” by means of indelible ink in accordance with Messier Dowty Technical Instruction CS/ 1020/07.

The above requirement is a temporary solution and is only valid until 31 August 2007.  A final solution is intended to be provided before the expiry date.  During this period, special attention should be given during maintenance to the installation of locking washer part number SKW40716-118 instead of locking washer part number Z00.N7743811500 for axles not in compliance.

 

 

Note:  DGAC Emergency AD UF-2007-007 refers.

Compliance:

Before further flight for Requirements 1 and 2.

 

This Airworthiness Directive becomes effective on 6 August 2007.

Background:

A report was received of a main landing gear wheel axle nut that had unscrewed on a TBM 850 aircraft.  This condition resulted in a loss of braking and could lead to loss of the wheel.  Investigation revealed that the incident was due to an axle machining issue which concerned several production batches.


David Villiers
Delegate of the Civil Aviation Safety Authority

3 August 2007