As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING A ZONE 4 INSPECTION IAW AMC AAIP, WHICH REQUIRES AN INSPECTION OF THE TAIL ROTOR GEARBOX FOR PROPER TORQUE OF ATTACHING HARDWARE. DURING THIS INSPECTION, ONE BOLT BROKE WITH MINIMAL EFFORT. REMOVED THE TAIL ROTOR GEARBOX TO INSPECT AND FOUND TWO MOUNTING STUDS LOOSE IN THE GEARBOX CASE. NO OTHER DAMAGE TO THE GEARBOX OR ACFT STRUCTURE WAS FOUND.