AD/HU 369/6 NAS 1291 4 Nuts Used in Specific Applications Inspection 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 369/6.

McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters

AD/HU 369/6 NAS 1291 - 4 Nuts Used in Specific Applications Inspection 6/2009

Requirement:

CANCELLED.

This AD is cancelled on 4 June 2009.

Background:

This unique Australian AD raised in 1970 against Hughes Service Information Notice (SIN) No. HN-4 required a one-time inspection for NAS1291-4 nuts installed on a number of assemblies that were suspected of being inadequately processed during vendor manufacturing.

Compliance was:  Before 1 September 1971.

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

James Coyne
Delegate of the Civil Aviation Safety Authority

24 April 2009