COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 90 and 65-90 (King Air) Series Aeroplanes AD/BEECH 90/45 Wing Strobe Lights - Replacement 10/76 Applicability: All models B90 and C90, S/Nos. LJ-318 thru LJ-502; E90 S/No. LW-1; that have either Hoskins P/N 30-0187-21 or Grimes P/N 30-0669-1 wing strobe lights installed. Document: Beechcraft SI No. 0800-362. Compliance: Within 100 hours' time in service after 29 October 1976.