As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LH ALTERNATOR MAIN CABLE SHORT CIRCUITING ON EXHAUST PIPE - LOOSE TERMINALS ON BATTERY SUPPLY RELAYS - INVESTIGATION FOUND THAT THE ALTERNATOR SYSTEM WAS NOT AN APPROVED INSTALLATION (SYSTEM HADBEEN CHANGED FROM GENERATOR TO ALTERNATOR) - UNAPPROVED MODIFICATION - PERSONNEL/MAINTENANCE ERROR