AD/TPE 331/61 - 1st Stage Turbine Disk (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 CASR 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.

AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series

AD/TPE 331/61 1st Stage Turbine Disk 9/2004

Applicability: Honeywell International Inc. (formerly AlliedSignal Inc.) TPE331 series engines as detailed in Honeywell International Inc. Alert Service Bulletin (ASB) TPE331-A72- 2102, dated 28 March 2002, fitted with 1st stage turbine disk part number (P/N) 3101520-1 or P/N 3107079-1, with serial numbers (SNs) listed in Table 1 of Honeywell International Inc. ASB TPE331-A72-2102.

Note 1: These engines are installed on, but not limited to Mitsubishi MU-2B series, Construcciones Aeronauticas S.A. (CASA) C-212 series, Fairchild SA226 series (Swearingen Merlin and Metro series), Twin Commander 680 and 690 series (Jetprop Commander), Dornier 228 series, Beech 18 and 45 series, Beech Models JRB-6, 3N, 3TM, and B100, Cessna Aircraft Company Model 441 Conquest, and Jetstream 3201 series aeroplanes.

Requirement: 1. Unless previously accomplished perform a initial fluorescent penetrant inspection (FPI) of first stage turbine disks, P/N 3101520-1, in accordance with 2.A. (4)(a) through 2.A. (4)(d) of Accomplishment Instructions of ASB TPE331-A72-2102.