These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
Cessna Aircraft Company (Cessna) Model 172 Airplanes Modified by Supplemental Type…
May 26, 2011
Airframe (172G)Only with: Modified by STC SA01303WI (installation of TAE 125-01 or TAE 125-02-99 engine).
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
Landing gear · step · shearedOct 15, 1999
UPON LANDING, THE RIGHT SPRING STRUT SHEARED OFF JUST ABOVE THE AXLE. THE STRUT REVEALED SOMEONE HAD WELDED THE FOOT STEP TO THE STRUT. THE WELD PENETRATION POINTS SET UP STRESS ULTIMATELY CAUSING THE STRUT TO SHEAR. THE LEFT STRUT INSPECTED ALSO HAD BEEN WELDED ON IN THE SAME AREA.
From FAA Service Difficulty Reports; matched by N-number and serial number.