As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE ITT FLUCTUATED APPROX 650-800 DEGREES IN TAKEOFF DETENT AT BEGINNING OF TAKEOFF ROLL. TAKEOFF WAS ABORTED. RAN ENGINES AT T/O POWER. BOTH ENGINES OPERATED NORMALLY. NO FLUCTUATION ON BOTH FADEC NOTED. GAINED ACCESS TO LEFT ENGINE FADEC REPOSITIONED FADEC A TO FADEC B OF LEFT ENGINE DUE TO FADEC FAULTS 363-423-455 AND 476. REMOVED AND REPLACED ITT TRIM PLUG WITH NEW PART. OPS CHECK GOOD IAW AE3007C CHAPTER 73-25-10 AND 77-21-25.