AD/AL 250/45 - Power Turbine Inner and Outer Coupling Shaft - Replacement

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B02256 Not in force Legislative Instrument

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Allison Turbine Engines - 250 Series

 

AD/AL 250/45 Power Turbine Inner and Outer Coupling Shaft - Replacement


7/81

 

Applicability: Model 250-B17B, C20B, -C28B and -C30 engines fitted with turbines of S/Nos. specified in the reference document.

 

Document: 1. Allison 250-C20B CEB-A-1173; or

 

2. Allison 250-B17B CEB-A-1138; or

 

3. Allison 250-C28B CEB-A-72-2055; or

 

4. Allison 250-C30 CEB-A-72-3049.

 

Compliance: Within 100 hours’ time in service after 31 July 1981.

 

Background: This Directive is issued to preclude a power turbine coupling failure.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.