AD/CON/45 Amdt 3 Camshaft Oil Transfer Holes 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/45 Amdt 3.

Teledyne Continental Motors Piston Engines

AD/CON/45 Amdt 3 Camshaft Oil Transfer Holes 7/2009

Requirement:

CANCELLED.

This AD is cancelled on 2 July 2009.

Background:

This unique Australian AD originally raised in 1984 and subsequently amended to include Teledyne Continental Motors Service Bulletin M86-14, required removal from service of camshafts P/No. 629762 or SA629726 with suffix lettering A to Z and AA.  Also required was an inspection for condition in the vicinity of the oil transfer recess of the rear cam bearing and rework of serviceable camshafts P/No. 629726 AB or SA629726 AB.

Compliance was:

1.    Unless previously accomplished in accordance with amendment 2 of this directive; at the next disassembly of the crankcase halves, effective on
10 October 1996.

2.    Unless previously accomplished in accordance with amendment 2 of this directive:

*  Installed camshafts:  At next disassembly of the crankcase halves, effective on 10 October 1996.

*  Uninstalled camshafts (new or part life):  Prior to installation in an engine, effective on 10 October 1996.

Given that there are no reports of defects in compliance with this AD contained in the mandatory reporting system and that this AD has been sufficiently promulgated for the affected camshafts to have been inspected, replaced or reworked by now; this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

1 May 2009