What was found
DUR HI-PWR ENG RUN, NOTICED LT ENG ITT AT 690 DEG. ITT CLIMBED, REDUCED PWR IN ORDER NOT TO EXCEED 700 DEG RED LINE OF ITT. A 5 PT PERFORMANCE RUN PERF AT P&W REQUEST. ITT AT 695 DEG. CHECKED T1 HARNESS & T6 THERMOCOUPLES. RESISTANCE OF BOTH OF THE HARNESS' WITHIN PUBLISHED LIMITS. 2 OF THE T6 THERMOCOUPLES HAD DIFFERENT P/N THAN THE OTHERS. CHANGED THE 2 T6 THERMOCOUPLES WITH THE DIFFERENT P/N. ENG WAS CHECKED FOR BLEED AIR LEAKS, NONE FOUND. ANOTHER 5 PT PERFORMANCE RUN CONDUCTED, SAME RESULTS. ITT AT 695 DEG. CHANGED STATOR VANE ICE VALVE. A RUN WAS CONDUCTED, ITT AT 690 DEG. CHANGED T1 THERMOCOUPLE HARNESS, AN ENGINE PERFORMANCE RUN COMPLETED. THE ITT DROPPED TO 660 DEGREES.