As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) BATTERY FAULTY - REPORTED AS FLAT PRIOR TO ENGINE START - ON COMPLETION OF THE FLIGHT THE BATTERY WAS INSPECTED AND WAS FOUNDTO HAVE BULGED ALL AROUND BY AT LEAST 6.35MM (0.25IN) - NO WARNING LIGHTS HAD ILLUMINATED DURING THE FLIGHT