COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piaggio P166 Series Aeroplanes AD/P166/32 Flap Actuating Cylinder Attachment Bracket - Inspection 11/66 Applicability: All models P166, P166B and P166C fitted with bracket P/N 1409-01 which have exceeded 1500 hours time in service. Document: Piaggio SB No. 166-53. Compliance: At intervals not exceeding 200 hours time in service.