AD/Bell 206/54 Tail Rotor Gearbox Assembly Inspection Cancelled (Cth)

AIRWORTHINESS DIRECTIVE

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/BELL 206/54.

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

AD/BELL 206/54 Tail Rotor Gearbox Assembly - Inspection 11/2008

Requirement:	CANCELLED.
This AD is cancelled on 23 October 2008.
Background:	This unique Australian AD, issued in 1973, required a one time inspection of the tail rotor gear box assembly in accordance with Bell Alert Service Bulletin 206-04-73-1 to ensure that the tail rotor shaft retaining nut cotter pin is properly installed.  The AD compliance was within 100 hours time in service after 31 October 1973.  As all aircraft would have been inspected by now, the AD is no longer required.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

11 September 2008