AD/CON/82 Amdt 1 - Crankshaft Replacement and Ultrasonic Inspection (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/CON/82 and issues the following 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.

Teledyne Continental Motors Piston Engines AD/CON/82 Amdt 1 Crankshaft Replacement and 5/2005 Ultrasonic Inspection

Applicability: Teledyne Continental Motors (TCM) IO-360, LTSIO-360, TSIO-360, IO-520, LIO-520, LTSIO-520 and TSIO-520 series reciprocating engines; and Rolls-Royce, plc IO-360 and TSIO-360 series reciprocating engines. Requirement: 1. Determine if the crankshaft was manufactured using the 'Airmelt' or 'Vacuum Arc Remelt (VAR)' process in accordance with the identification procedure described in TCM Critical Service Bulletin CSB96-8, dated 25 June 1996 or later revision approved by FAA. If the crankshaft was manufactured using the 'Airmelt' process or if the manufacturing process is unknown, remove the crankshaft from service and replace with a serviceable crankshaft manufactured using the VAR process. Do not fit removed non-VAR crankshaft into any engine.

2. Conduct an ultrasonic inspection of the VAR crankshaft in accordance with the procedures specified in TCM Mandatory SB No. MSB96-10, dated 15 August 1996 or later revision approved by FAA.