AD/HU 369/7 Amdt 1 Oil Cooler Blow System 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/HU 369/7 Amdt 1.

McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters

AD/HU 369/7 Amdt 1 Oil Cooler Blow System - Modification 6/2009

Requirement:

CANCELLED.

This AD is cancelled on 4 June 2009.

Background:

This unique Australian AD raised in 1971 against Hughes Service Information Notice (SIN) No. HN-28.1 Part 1 requiring a modification to the oil cooler blower system to simplify and improve operation of the system.

Compliance was:  Within 100 hours TIS after 29 October 1971.

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

24 April 2009