COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piaggio P166 Series Aeroplanes AD/P166/33 Engine and Propeller Teleflex Controls - Inspection and Modification Applicability: All models P166, P166B and P166C incorporating Piaggio SB No. 166-51. 1/68 Requirement: 1. Inspect P/N 5206 swing bearings for security in the swinging joint terminal fitting P/N 6161.02, of all engine and propeller teleflex controls. 2. Modify the joint and bearing of the engine and propeller controls in accordance with Piaggio SB No. 166-54. Compliance: For para. 1 - Within 25 hours time in service after 10 January, 1968 and thereafter at intervals not exceeding 25 hours time in service until modified as required in para. 2. For para. 2 - Before 1 June, 1968.