Note that there is no discrimination between crank failures used for
aerobatic and nonaerobatic flight/aircraft.

From the Preamble to AD 2005-19-11:
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Lycoming Engines (formerly Textron Lycoming) AEIO-360, IO-360,
O-360, LIO-360, LO-360, AEIO-540, IO-540, O-540, and TIO-540 series
reciprocating engines rated at 300 horsepower (HP) or lower. This AD
requires replacing certain crankshafts. This AD results from reports of
12 crankshaft failures in Lycoming 360 and 540 series engines rated at
300 HP or lower. We are issuing this AD to prevent failure of the
crankshaft, which could result in total engine power loss, in-flight
engine failure, and possible loss of the aircraft.