As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON THE AIRWORTHINESS CHECK, MECHANIC FOUND 4 MISSING RIVETS ON THE VERTICAL STABILIZER. 3 OF THE 4 RIVETS HOLD THE ATTACH MOUNT FOR THE TAIL ROTOR GEARBOX. FOUND A 4 INCH CRACK ON THE VERTICAL FIN SPAR. CRACK RAN FROM A LIGHTNING HOLE DIAGONALLY UPWARD AROUND THE CORNER OF THE SPAR.