AD/Cessna 177/12 Amdt 1 Upper Door Pillar 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 177/12 Amdt 1.

Cessna 177 Series Aeroplanes

AD/CESSNA 177/12 Amdt 1 Upper Door Pillar 8/2008

Requirement:

CANCELLED.

This AD is cancelled on 31 July 2008.

Background:

This unique Australian AD, issued in 1971, required inspection of the front door pillar and if cracks were found installation of reinforcing brackets was required in accordance with Cessna Service Letter SE 72-71 or Rex Aviation Drawing
RA-C-1258.  The Cessna Service Letter indicated that small cracks of a non critical nature in the inner channel were detected in accordance with the Service Manual. Installation of the reinforcing brackets is terminating action of the AD.

The AD compliance was within 100 hours time in service after 28 January 1972 and then every 100 hours until reinforcing brackets were installed.

Search of the SDR system revealed no defects have been detected since 1982 which indicates all aircraft have installed the reinforcing brackets and therefore the AD is no longer required.

David Villiers
Delegate of the Civil Aviation Safety Authority

18 June 2008