AD/AL 250/13 Improved Indicating Magnetic Drain Plugs Introduction 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/AL 250/13.

Allison Turbine Engines - 250 Series

AD/AL 250/13 Improved Indicating Magnetic
Drain Plugs - Introduction 7/2009

Requirement:

CANCELLED.

This AD is cancelled on 2 July 2009.

Background:

This unique Australian AD raised in 1970 against Allison Commercial Engine Bulletin (CEB) 250 CEB-109 required a modification by replacement of indicating type magnetic drain plugs with improved type.

Compliance was:  Within 100 hours TIS after 30 October 1970.

This AD has been sufficiently promulgated for the affected engine 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

1 May 2009