As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE RUNS, EICAS INDICATION HARD FAULT (L ENG OH LP1). TROUBLESHOT IAW FIM 26-11-00 AND WDM 26-11-12 FOUND FIRE DETECTOR AND OVERHEAT CARDS SWAPPED CARD INSTALLED PROPERLY OPERATION CHECK PERFORMED IAW IAW AMM 26-11-00 OPERATION CHECK GOOD.