AD/TFE 731/34 - 1st and 2nd Stage Low Pressure Turbine Rotor Discs (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 39.001(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 - TFE731 Series AD/TFE 731/34 1st and 2nd Stage Low 9/2005 Pressure Turbine Rotor Discs

Applicability: Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.) TFE731-2 and -3 series turbofan engines with the following low pressure (LP) 1st and 2nd stage turbine rotor disc part numbers (P/Ns), with serial numbers (SNs) listed in Tables 1, 2, and 3 of Honeywell International Inc. SB No. TFE731-72-3682, dated 26 November 2002, initially installed as new parts before 1 April 1991: Part Numbers 3072069-All 3073014-All 3072070-All 3073113-All 3072351-All 3071114-All 3072542-All 3074103-All 3073013-All 3074105-All (All denotes all dash numbers installed) Note 1: These engines are installed on, but not limited to, the following aeroplanes: