What was found
FLT 4864 - BOS-BDL - EXPERIENCED AN ENGINE FAILURE DURING TAKEOFF ROLL. AS POWER APPROACHED 80 PERCENT TORQUE, ITT ROSE TO 920 DEGREES CELSIUS AND 4TH STAGE TURBINE BLADES SEPARATED FROM THE TURBINE WHEEL. THE TAKEOFF WAS ABORTED WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT AND REPLACED THE ENGINE IAW THE SAAB MM. ALL GROUND RUNS CHECKED GOOD AND THE AIRCRAFT RETURNED TO SERVICE. (W)