What was found
(AUS) APU FIRE. FIRE BOTTLE DISCHARGED. INVESTIGATION FOUND THAT THE STARTER HAD DISCONNECTED FROM THE GEARBOX AND THE SPRAG CLUTCH WAS LYING IN THE COWLS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) APU FIRE. FIRE BOTTLE DISCHARGED. INVESTIGATION FOUND THAT THE STARTER HAD DISCONNECTED FROM THE GEARBOX AND THE SPRAG CLUTCH WAS LYING IN THE COWLS.