Federal Register of Legislation - Australian Government

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AD/BELL 206/167 Amdt 1 Airworthiness Directives/Pt 105 — Aircraft as made
Transmission Pylon Support Spindle
Administered by: DOTARS
Exempt from sunsetting by the Legislative Instruments Act 2003 s 54(2) item 9
Registered 04 May 2007
Tabling HistoryDate
Tabled HR09-May-2007
Tabled Senate09-May-2007
Date of repeal 30 Aug 2007
Repealed by AD/BELL 206/167 Amdt 2 - Transmission Pylon Support Spindle



On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BELL 206/167 and issues the following 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.

Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters

AD/BELL 206/167 Amdt 1

Transmission Pylon Support Spindle

7/2007 DM



Bell Model 206 A and B series helicopters, and Agusta Model AB 206 A and B series helicopters; that have a part number 206-031-554 Transmission Pylon Support Spindle (Spindle) with the following serial numbers, installed:

B12-11568, B12-12244, B12-12260, B12-12647, B12-12676, B12-12847,
B12-13292, B12-14395, B12-15750, B12-17149, B12-17266, B12-1828, B12-18649, B12-19330, B12-19381, B12-20668, B12-2224, B12-2286, B12-3595, B12-3774, B12-3808, B12-5171, B12-757, B12-8053, B12-8605, B12-932, B-21223, B-21297, B22005, B22515, B-22558, CAI3852, CAI3853, EA287, EA318, EA322, EA393, EA751, EA761, MW546, RE1044, RE113, RE743.


Verify the technical logbook entries if Spindle part number 206-031-554 with a serial number listed in the Applicability section above is installed on the helicopter.

If an affected Spindle is installed, before further flight, replace the Spindle with a serviceable part.

Note:  Transport Canada AD CF-2007-02 and EASA AD 2007-0089, refer.


For Bell Model 206 helicopters:

Within 16 flight hours after 8 March 2007, but no later than 1 May 2007.

For Agusta Model AB 206 helicopters:

Within 16 flight hours after 8 May 2007, but no later 22 May 2007; unless already accomplished.

The compliance time for Bell Model 206 helicopters remains unchanged by this issue of the Directive.


This Amendment becomes effective on 8 May 2007.


A Transportation Safety Board of Canada investigation into an accident has revealed that the Spindle repaired by Cadorath Aerospace Inc., failed during flight and resulted in loss of control of the helicopter.  This Directive requires removal of all Spindles repaired by Cadorath Aerospace Inc.



Amendment 1 is issued in response to a new EASA AD, which requires the same technical actions as the original issue of this Directive to be applied to Agusta Model 206 A and B series helicopters.

David Villiers
Delegate of the Civil Aviation Safety Authority

2 May 2007