What was found
AT 16000 FT ICE FULL APPROX 4 MIN IN VMC COND. NR 2 ENG TORQUE UNCOMMANDED WENT TO 30 PERCENT TORQUE & ITT PEGGED OVERTEMP LIGHT ILLUM APPROX 5 SEC UNTIL RT PL RETARDED. RAN QRH AFTER LOCKING OUT BOTH TORQUE MOTORS & DETERMINED IT WAS NOT AN INDICATION PROBLEM. SHUTDOWN NR 2 ENG. MX PERFORMED BORESCOPE DUE TO TEMPS IN EXCESS OF 960 DEGREES BUT LESS THAN 970 DEGREES, FOR 2 SECONDS ON RT ENG. NO DISCREPANCIES NOTED. REPLACED RT HMU. MX BOROSCOPED COMP & HOT SECTION. CHECKED ENG CHIP DETECTOR & SCAVANGE SCREENS, NO FAULTS FOUND, REPLACED ECU DUE TO PRIOR PART HISTORY. ALL CHECKS GOOD. ALL RUNS TEST GOOD.