What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT (12WL) BATTERY BAD. REPLACED EMERGENCY POWER SUPPLY UNIT (12WL) BATTERY PER AMM 33-51-00.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT (12WL) BATTERY BAD. REPLACED EMERGENCY POWER SUPPLY UNIT (12WL) BATTERY PER AMM 33-51-00.