As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GTF - GTF - LEFT ENGINE OVERTEMPED ON START IN GTF. EGT GAUGE STUCK AT 230 DEGREES CELSIUS WHEN STOP BUTTON RELEASED, TEMP CLIMBED TO 900 DEGREES CELSIUS, ABORTED START. STICKING EGT GAUGE. REMOVED ENGINE, COMPLIED WITH OVERTEMP INSPECTION PER GARRETT MM AND REINSTALLED ENGINE. GROUND RUN AND TEST FLIGHT PERFORMED NORMAL. REMOVED AND REPLACED EGT INDICATOR.