AD/F27/26 RPM Control System Gustlock Interference System Improvement 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/F27/26.

Fokker F27 Series Aeroplanes

AD/F27/26 RPM Control System - Gustlock
Interference System - Improvement 11/2009

Requirement:

CANCELLED.

This AD is cancelled on 22 October 2009.

Background:

This AD, raised in 1960 against Fokker Service Bulletin F-9, required modifications to improve the reliability of the gustlock/RPM control interference system.  Compliance was required before 1 January 1961.

As all affected aircraft would have been modified long ago, this AD is no longer required.

David Villiers
Delegate of the Civil Aviation Safety Authority

9 September 2009