AD/CESSNA 170/52 - Muffler
1AD/CESSNA 170/52 - Muffler
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes
AD/CESSNA 170/52 Muffler 3/86
Applicability: Cessna aircraft S/N 172RG 1135 to 172RG 1187.
Requirement: Inspect muffler core below each end plate attachment screw for damage in accordance with Cessna SB No SEB85-17.
Compliance: Prior to issue of Certificate of Airworthiness.
Background: A possibility exists that holes may have been drilled through the muffler allowing exhaust gases into the cabin during cabin heat operation.