AD/AL 250/73 Amdt 2 - Bendix Power Turbine Governor (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Allison Turbine Engines - 250 Series

AD/AL 250/73 Amdt 2

Bendix Power Turbine Governor 6/2002

Applicability: Allison 250-C20 and C20R series equipped with Bendix fuel control systems not incorporating Allison Alert Service Bulletin CEB-A-1289 or CEB-A-73-4015.

Requirement: Inspect power turbine governor Py port boss in accordance with Allison Alert Service Bulletin 250-C20 CEB-A-1281 Revision 2 or 250-C20R CEB-A-73-4012 Revision 2.

Note: Incorporation of Allison Alert Service Bulletin CEB-A-1289 or CEB-A-73- 4015 will provide terminating action for this Directive.

Compliance: Effective 13 June 2002 at intervals not exceeding 1000 flight hours.

This Airworthiness Directive becomes effective on 13 June 2002.

Background: The original Directive was issued to carry out the inspection as listed in the reference documents on 13 July 1989. This amendment changes the applicability to reflect a terminating action covered by Allison Alert Service Bulletin CEB-A-1289 or CEB-A- 73-4015.