AD/Bell 206/40 Tail Rotor Control Tube Tunnel Modification 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 206/40.

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

AD/BELL 206/40 Tail Rotor Control Tube Tunnel - Modification 11/2008

Requirement:	CANCELLED.
This AD is cancelled on 23 October 2008.
Background:	This unique Australian AD, issued in 1973, required modification of the tail rotor control tube tunnel in accordance with Bell Service Letter 206-202 to eliminate chafing of the anti-torque control tube from the AN520-10R8 screw that attaches the lower and upper access doors.  The AD compliance was within 10 hours time in service from the 28 February 1973.  As all aircraft would have been modified by now, the AD is no longer required.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

11 September 2008