As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT FIRE BELL/ LIGHT ACTIVATED ON TAKEOFF. POWER WAS REDUCED AND INDICATION EXTINGUISHED. RETURNED TO BLOCKS. RAN LT ENGINE AT HIGH POWER SETTING FIRE WARNING ILLUMINATED. R & R BOTH 450C THERMAL FIRE SENSORS. GROUND TEST OK WORK PERFORMED IAW MM 26-10-00. OPS CHECK FLIGHT SATISFACTORY, ACFT RETURNED TO SERVICE