COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes AD/CESSNA 170/43 Fuel Quantity Placarding 9/81 Applicability: Models 172N and 172P with S/Nos. 17272885 to 17274357. Model R172K with S/Nos. R1723200 to R1723403. Model 172RG with S/Nos. 172RG0001 to 172RG0698. Requirement: 1. With reference to Fig. 1, identify the correct fuel tank cover for the aircraft. 2. Inspect the placarding adjacent to the fuel filler openings to verify that the markings agree with the actual tank capacity Fig. 1. 3. Inspect the fuel gauge markings and the placard adjacent to fuel selector valve to verify that the markings agree with the usuable fuel quantities for the tanks installed. 4. Replace any incorrectly marked fuel gauge, fuel selector valve placard or fuel tank filler placard with one compatible with correct fuel tank capacity. Access Cover Model Fuel Tank Capacity Usable Fuel 172RG R172K 172P 152 & A152 172N & 172P R172K 152 & A152 172N & 172P 33/Side 34/Side 34/Side 13/Side 21.5/Side 26/Side 19.5/Side 27/Side 62 Gallons 62 Gallons 62 Gallons 24.5 Gallons 40 Gallons 49 Gallons 37.5 Gallons 50 Gallons (Left Side Shown - Right Side Opposite) Figure 1. Note: FAA AD 81-05-01, Amendment 39-4049 refers. Compliance: Within 100 hours time in service after 31 May 1981. COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Background: Incorrect fuel quantity markings may affect fuel endurance for flight planning purposes.