As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ONE OF THE 4 VERTICAL FIN ATTACHMENT (NAS6604-30) BOLTS FOUND BROKEN (BOTTOM AFT BOLT). REMAINING 3 BOLTS WERE NOT FINGER LOOSE, BUT WERE NOT AT MAXIMUM TORQUE. THE NUTS WERE NOT BOTTOMED ON THE SHANK OF THE BOLTS. FRETTING DAMAGE TO TAIL FIN FLANGE BUSHINGS WAS NOTED. ALSO, SUPPORT LOWER AFT HOLE WAS FOUND ELONGATED IN THE FORE AND AFT DIRECTION. (SEE ALSO FAA SDR 2009091200010/AC2A2009081282853).