AD/HU 269/66 Tail Rotor Swashplate Bearing Locknut Increase in Torque 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/HU 269/66.

Schweizer (Hughes) 269 Series Helicopters

AD/HU 269/66 Tail Rotor Swashplate Bearing
Locknut - Increase in Torque 5/2009

Requirement:

CANCELLED.

This AD is cancelled on 7 May 2009.

Background:

This unique Australian AD raised in 1980 against Hughes Service Information Notice (SIN) No. N-163 (now out of date) required a one-time procedure for reseating the double row ball bearing of the tail rotor pitch control assembly by increasing the torque value of the locknut.

Compliance was: Within 100 hours TIS after 31 March 1983.

This AD has been sufficiently promulgated for the affected aircraft to have been modified by now; therefore this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

27 March 2009