As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING A 500HR VERTICAL STABILIZER ANTI-COLLISION LIGHT CONDUIT CLAMP INSPECTION, DAMAGE WAS FOUND. THE FASTENER FOR THE UPPER CONDUIT CLAMP WAS PULLED THROUGH THE SPAR. THE HOLE MEASURES 7/32 X 5/16, THE WASHER THAT IS ON THE HEAD SIDE OF THE RIVET CHAFED INTO THE SPAR, APPROX. .020 DEEP.