What was found
ABORTED TAKEOFF, APPLYING POWER FOR TAKEOFF. HEARD A LOUD WHINING SOUND. IMMEDIATELY REDUCED POWER, CHECKED ALL OF THE ENGINE INDICATIONS, AND ALL WERE WITHIN LIMITS, TAXIED BACK TO PARKING. POWER SECTION REMOVED, AND REMAINDER OF ENGINE INSPECTED FOR DAMAGE. FOUND NO IMPACT TO COMPRESSOR TURBINE. EXHAUST DUCT DINGED AND WILL REQUIRE REPLACEMENT. NO METAL FOUND IN THE OIL FILTER. ONE POWER TURBINE BLADE APPEARED TO HAVE FRACTURED CAUSING DAMAGE TO ALL OTHER BLADES.