On July 3, 2002, the Australian Transportation Safety Board (ATSB) requested information about the NTSB's investigation into a series of Lycoming crankshaft failures, following a crankshaft separation failure of an Australian-registered Piper Chieftain airplane that resulted in an in flight engine shutdown. The crankshaft failure was characteristic of the failure mode confirmed in 15 other units and is the subject of a Lycoming crankshaft recall Airworthiness Directive (AD 2002-19-03). The ATSB requested information concerning Lycoming's fleet management plan.

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