As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE VISIT: MAINTENANCE FOUND INOP EMERGENCY LIGHT EPSU-EMERGENCY POWER SUPPLY UNIT BATTERY PASSENGER CREW DOOR 843 IN PASSENGER CABIN (1 EA). MAINTENANCE REPLACED THE EMERGENCY POWER SUPPLY UNIT FIN 14WL IAW AMM 33-51-38-000-001-A.