AD/Cessna 337/6 Control Systems 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/CESSNA 337/6.

Cessna 337 Series Aeroplanes

AD/CESSNA 337/6 Control Systems - Modification 2/2008

Requirement:	CANCELLED.
This AD is cancelled on 14 February 2008.
Background:	This is a unique Australian AD issued in 1970 requiring a once off replacement of a number of NAS 679 lock nuts installed on Cessna aircraft between April and November in 1969.  These nuts were suspected to have a manufacturing flaw.  As all nuts would have now been replaced, the unsafe condition no longer exists.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

20 December 2007