COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna 320 Series Aeroplanes AD/CESSNA 320/10 Amdt 3 Fuel System - Placards 1/70 Applicability: All model 320 and 320-1 with S/Nos. 320-0001 to 320-0110. Requirement: 1. On all models a placard reading "Operation With Less Than Five (5) Gallons of Fuel In Each Main Tank is Prohibited". Usable Fuel In Each Tank Is 45 Gallons" is to be placed in full view of the pilot and as near as possible to the main fuel quantity indicator. 2. On all models a placard reading "Maintain Power Within Green Arcs During Descent" is to be placed in full view of the pilot and as near as possible to the manifold pressure gauge. Note: The operator may make and certify for the installation of the above placards. Letters of one eighth inch minimum height shall be used. or 3. Cessna SL ME69-19. Compliance: Before 1 September 1971.