COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Percival Proctor Series Aeroplanes AD/PROCTOR/9 (Re-Issue) Speed Restriction - Placard 11/58 Requirement: 1. Placard the cockpit as follows:- "This aeroplane must not be flown at speeds in excess of 174 knots (200 m.p.h.)". 2. The placard shall be located in a conspicuous position, preferably on the instrument panel. 3. The lettering shall be applied in paint or other equally durable medium and shall be easily readable from the pilot's seat. 4. Delete reference to maximum speed in excess of 174 knots (200 m.p.h.) from any other placards which may be fitted. Compliance: Forthwith.