COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna T303 Series Aeroplanes AD/CESSNA 303/2 Amdt 1 Flight Into Icing Conditions 8/85 DM Applicability: Model T303 with Serial Numbers T30300001 to T30300315 fitted with wing leading edge de-ice boots and propeller de-icing. Requirement: 1.a. Fabricate and install adjacent to the anti-ice system switches the following placard: "FLIGHT INTO KNOWN ICING PROHIBITED" 1.b. Insert a copy of FAA AD No. 85-11-05 in the limitation section of the Pilot's Operating Handbook. Copies of this AD are available from Department of Aviation, Airworthiness Offices. 2.a. Install Rudder Balance Weight Modification Kit, Part No SK303-34 in accordance with Cessna Service Bulletin MEB 85-7. 2.b. Remove placard and copy of FAA AD specified in Part 1 of this AD. Compliance: 1. Before further flight after 31 August 1985 until modified in accordance with Requirement 2. 2. Before further flight after 30 November 1985. Background: Ice formation on the fin has been found to cause rudder flutter.