What was found
BATTERY SHOWED HIGH RATE OF CHARGE. BOTH ALTERNATORS, AMPERE OUTPUT, TOTAL AVIONICS FAILURE, UTILIZED AVIONICS BYPASS, REGAINED PARTIAL AVIONICS. AIRCRAFT LANDED WITHOUT INCIDENT. MECHANIC REMOVED AND REPLACED RIGHT STARTER RELAY (UNIT HAD FAILED) AND RIGHT STARTER MOTOR AS A PRECAUTIONARY MEASURE. AIRCRAFT WAS RETURNED TO SERVICE.