What was found
(AU) BATTERY MASTER WAS SWITCHED ON AND THE BATTERY DID NOT COME ON-LINE. PROBLEM WAS THE BATTERY RELAY WOULD NOT ENERGIZE BELOW -30 DEGREES CELCIUS. RELAY REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AU) BATTERY MASTER WAS SWITCHED ON AND THE BATTERY DID NOT COME ON-LINE. PROBLEM WAS THE BATTERY RELAY WOULD NOT ENERGIZE BELOW -30 DEGREES CELCIUS. RELAY REPLACED.