As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A 1971 MODEL AND 1980 MODEL 172, FOUND WITH RIVETS SHEARED AND LOOSE WHICH ATTACH NOSE GEAR BUTTERFLY CASTING; THUS, CAUSING CASTING TO WORK AGAINST FIREWALL. THE TOP TWO BOLTS AT TOP WERE ONLY ATTACHING POINTS LEFT. CESSNA SM ALLOWS RIVET HOLES TO BE DRILLED AND REPLACED WITH AN-3 BOLTS. SUBMITTER RECOMMENDS MORE FREQUENT INSPECTIONS.