What was found
RECEIVED APU FIRE WARNING IN FLIGHT. FIRE BOTTLE WAS DISCHARGED. FOUND OVERHEAT DETECTOR LOOP IN TAILPIPE SHORTED TO GROUND. REPLACED LOOP DETECTOR AND CONNECTOR. CHECKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RECEIVED APU FIRE WARNING IN FLIGHT. FIRE BOTTLE WAS DISCHARGED. FOUND OVERHEAT DETECTOR LOOP IN TAILPIPE SHORTED TO GROUND. REPLACED LOOP DETECTOR AND CONNECTOR. CHECKS OK.