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 (172L)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.
Engine fuel and control · spring · weakNov 13, 1996
INSTALLED OVERHAULED CARBURETOR AND RIGGED. WITHIN 10 HOURS, OWNER REPORTED ENGINE VERY ROUGH AT LOW POWER SETTINGS OR WOULD NOT EVEN IDLE. FOUND IDLE MIXTURE ADJUST SCREW GONE. NOTIFIED OVERHAULER WHO SENT NEW CARB. UPON INSTALLATION OF NEW UNIT, SPRING TENSION ON AJUST SCREW FOUND TO BE WEAK OR…
From FAA Service Difficulty Reports; matched by N-number and serial number.