AD/CON/58 Challenger Engineering Chrome Plated Cylinder Barrels 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/CON/58.

Teledyne Continental Motors Piston Engines

AD/CON/58 Challenger Engineering Chrome
Plated Cylinder Barrels 6/2009

Requirement:

CANCELLED.

This AD is cancelled on 4 June 2009.

Background:

This unique Australian AD raised in 1990 required cylinder assemblies with barrels chrome plated by Challenger Aero Engineering Pty Ltd (formerly Challenger Engineering Pty Ltd) to be removed from service and quarantined.

Compliance was:

For installed engines:  Within 100 engine operating hours after 12 July 1990 or before 31 August 1990, whichever occurs first.  For uninstalled engines:  Prior to installation after 12 July 1990.

This AD has been sufficiently promulgated for the affected cylinder assemblies to have been located and removed from service by now; therefore this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

24 April 2009