AD/CT58/15 - Inspection/Replacement of Rotating Parts (Cth)

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.

General Electric Turbine Engines - CT58 Series

AD/CT 58/15 Inspection/Replacement of Rotating Parts 5/2002 DM

Applicability: Models CT58-100-2, -110-1, 110-2, -140-1, -140-2, and T58-GE-3/-5/-8F/-10/-100 series turboshaft engines

Requirement: 1. Inspect/replace the various rotating components in accordance with FAA AD 97-19-17 with the exception of engine cooling plates:

* Stage 1 front cooling plates, P/N: 37C300055P101;

* Stage 2 front cooling plates, P/N: 3000T88P02; and

* Stage 2 aft cooling plates, P/N: 30002T27P01.

2. For cooling plates listed in Requirement 1 above, and identified by serial number in GE Aircraft Engines CT58 Service Bulletin (SB) 72-188 (CEB-293), Revision 1, dated 15 July, 1997, replace with serviceable parts.

Note 1: FAA AD 97-21-08 refers to Requirement 2 of this Airworthiness Directive.

Note 2: GE Aircraft Engines Service Bulletins (SB) (CT58): A72-162 (CEB- 258), Revision 8, dated 16 June, 1997; 72-181 (CEB-284) Revision 2, dated 15 July1997, and 72-188 (CEB-293) Revision 1, dated 15 July, 1997 refer.