What was found
AIR TURNBACK DUE TO BATTERY DISCHARGING LEVEL 1 ALERT, INTERMITTENT BATTERY VOLTAGE 29V WHEN ALERT OFF. REPLACED BATTERY CHARGER AND BOTH AIRCRAFT BATTERIES, PERFORMED TEST ALL CHECK NORMAL PER MD11 AMM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK DUE TO BATTERY DISCHARGING LEVEL 1 ALERT, INTERMITTENT BATTERY VOLTAGE 29V WHEN ALERT OFF. REPLACED BATTERY CHARGER AND BOTH AIRCRAFT BATTERIES, PERFORMED TEST ALL CHECK NORMAL PER MD11 AMM.