As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ONE EACH, THIRD STAGE LOW PRESSURE TURBINE BLADE FAILED DUE TO STRESS RUPTURE. AIRCRAFT LANDED SAFELY. POSSIBLE CAUSE WAS THE OPERATION OF BLADE IN EXCESS OF RECOMMENDED HOURS AS SET IN ALLIED SB 72-3494. RECOMMEND ENGINE MFG INCLUDE TURBINE BLADES IN SB 72-300, 'SERVICE LIFE LIMITED OF CRITICAL LIFE LIMITED COMPONENTS' AS THIS BULLETIN IS THE ONLY MANDATORY SB LISTED IN ENGINE TYPE CERTIFICATE DATA SHEET.