As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NO2 ENGINE FIRE WARNING ALERT. ENGINE WAS SHUTDOWN AND BOTTLESFIRED. FIRE WARNING LIGHT REMAINED ON' FOR A SHORT PERIOD, THEN WENT OUT. THE DETECTOR LIGHT REMAINED ON'. INVESTIGATION FOUND THE FIRE LOOP DETECTORS LOOSE AND DIRTY.