What was found
ON FLIGHT 3229 ON TAKEOFF CREW REPORTED LEFT ENGINE PROP OIL TEMP AT 100FT AT BEGINNING OF TAKEOFF ROLL. LEFT PROP RPM WOULD NOT GO BELOW 1200 RPM AFTER ABORT TAKEOFF WHEN CONDITION LEVER AT "MIN". ALL OTHER INDICATIONS NORMAL. AIRCRAFT REMOVED FROM SERVICE. PERFORMED ENGINE RUNS FOR 20 MINUTES AT DIFFERENT POWER SETTINGS IAW GE CT7 ENGINE MM OIL TEMP ON BOTH ENGINES THE SAME AND WITHIN LIMITS PROP RPM WAS NORMAL ON BOTH ENGINES. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.