As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON VISUAL INSPECTION, FOUND THE MOST AFT VERTICAL TUBING OF AIRCRAFT STRUCTURE SHEARED ABOVE TAIL GEAR ATTACH POINT BUT BELOW 45 ANGLE BRACE. THIS WAS THE 2ND IDENTICAL FAILURE ON THE SAME AIRFRAME. FOUND CRACK 739.4 HOURS SINCE LAST REPAIR. AIRCRAFT USED DAILY FOR FLIGHT TRAINING WITH AN AVERAGE OF 100 HOURS OF FLIGHT TIME EVERY 45 DAYS.