COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Propeller Governors AD/GOV/8 Woodward Combined Power Turbine and Propeller Governor - Feather Check 10/82 Applicability: Woodward propeller governors P/N 8210-018 (DDA 6875708), installed on Allison 250-B15G, B17, B17B, B17C engines, and included in the serial number schedule listed in the compliance document. Document: 1. Woodward SB. 33577; or 2. Allison 250 CEB A-87 and Allison 250 CEB A-1151. Note: FAA AD 82-12-04 refers. Compliance: Within 50 hours time in service after 20 September, 1982. Background: A manufacturing calibration error which could cause slow propeller feathering or the inability to feather may exist in a group of governors.