AD/ENST 28/19 Fuel Strainer Drain Valve 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/ENST 28/19.

Enstrom F-28 Series Helicopters

AD/ENST 28/19 Fuel Strainer Drain Valve - Modification 9/2009

Requirement:

CANCELLED.

This AD is cancelled on 27 August 2009.

Background:

This unique Australian AD raised in 1977 required a modification to replace the fuel strainer drain valve with one that will automatically close after operation.  Incorporation of Forrester Drawing No. FSA 78.1 was an acceptable means of compliance.

Compliance was within 100 hours TIS after 30 April 1978.

This AD has been sufficiently promulgated for the affected helicopters 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

30 June 2009