As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT NOTED ENG FIRE INDICATION, FOUND FALSE INDICATION DUE TO FAULTY FIRE DETECTOR. PILOT ALSO REPORTED FIRING NR 1 FIRE BOTTLE, INSPECTION REVEALED THAT THE FIRE BOTTLE DID NOT DISCHARGE. INSPECTION OF FIRE EXTINGUISHING SYS REVEALED NO DEFECTS.