AD/CF6/9 - High Pressure Turbine Impeller Spacer Eddy Current Inspection

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

Legislation au F2006B08498 In force Legislative Instrument

Legislation content

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


General Electric Turbine Engines - CF6 Series

 

AD/CF6/9  High Pressure Turbine Impeller Spacer Eddy Current Inspection

Applicability: CF6-50/-45 Series.


2/88 TX

 

Requirement: Eddy current inspection of impeller spacers in accordance with General Electric Service Bulletin SB72-906 and their removal from service.

 

Compliance: In accordance with paras (a), (b), (c) and (d) of FAA AD 87-23-06 General Electric: Amendment 39-5746, effective from 1 December 1987.

 

Background:  Fatigue cracks attributed to high stress low cycle fatigue (LCF) can originate in bolt holes on certain GE CF6-50 and -45 impeller spacers. These components have been subject to special inspection in the past but now must be subject to a particular eddy current inspection process specified in GE Service Bulletin 72-906. The FAA has imposed more stringent initial and repetitive inspection periods on the components than those specified by GE, and it specifies requirements for their removal from service. This AD supersedes AD/CF6/4.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interactions

Authorises

All Versions

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.