As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ANNUAL INSPECTION, FOUND INCORRECT HARDWARE INSTALLED ON AFT VERTICAL FIN SPAR ATTACH. BOLTS INSTALLED WERE STANDARD AN HARDWARE. BOLT SHOULD HAVE BEEN A NAS224-15. CONTACTED CESSNA PARTS DEPT AND FOUND THE PART NUMBER HAD BEEN SUPERCEDED TO MS27039-6-15. INCORRECT HARDWARE HAS BEEN FOUND ON 2 OTHER AIRCRAFT DURING INSPECTIONS.