What was found
AIRCRAFT WAS GROUNDED: DURING EMERGENCY LIGHT BATTERY PACK TEST, L4 DOOR BATTERY PACK INOPERATIVE. REPLACED BATTERY PACK PER AMM 33-51-06. OPERATIONAL CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: DURING EMERGENCY LIGHT BATTERY PACK TEST, L4 DOOR BATTERY PACK INOPERATIVE. REPLACED BATTERY PACK PER AMM 33-51-06. OPERATIONAL CHECK GOOD.