Document ID: chunk:federal_register_of_legislation:F2006B04964:body:0
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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 170/32
 Amdt 1

 Vented Fuel Caps 8/80

 Applicability: Model 170 with S/Nos. 609 and 18729 to 27169.

            Model 172 with S/Nos. 610, 612, 615, 622, 625, 630, 638, 28000 to 29999, 36000 to
            36999, 46001 to 47746 and 17247747 to 17265684.

            Model P172 with S/Nos P17257120 to P17257188.

            Model R172 with S/Nos. P17227189 and R1720001 to R1720617.

            Model 175 with S/Nos. 619, 28700A, 55001to 56777 and 17556778 to 17557119.

 Requirement: Install vented fuel cap(s) in accordance with:

             1. Cessna SL No. SE 77-6; or

             2. FAA AD 79-10-14, Amendment 39-3475; or

             3. Bureau Veritas AD 79-155-IMP(A).

            Note: Installation of a placard is not an acceptable alternative to installation of vented fuel caps.

            Compliance: Within 100 hours time in service after 31 August 1979 or before 1 January 1980 whichever is the later.

            Background: To guard against the possibility of either an obstructed primary vent or sticking of the fuel tank vent valve it has been found necessary to provide secondary venting in the form of vented fuel caps. Due to some misinterpretation of this Directive a NOTE has now been added to disallow the fitting of a placard.

                   Federal Register of Legislative Instruments F2006B04964