What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT TEST FAULT BATTERY AT 11WL. REMOVED AND REPLACED BATTERY PACKS EMERGENCY POWER SUPPLY UNIT AT 11WL PER AMM 33-51-38.
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 TEST FAULT BATTERY AT 11WL. REMOVED AND REPLACED BATTERY PACKS EMERGENCY POWER SUPPLY UNIT AT 11WL PER AMM 33-51-38.