As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: FAULT MESSAGE FOR EMERGENCY POWER SUPPLY UNIT 10WL DISPLAYED DURING SYSTEM TEST. REPLACED PASSENGER / CREW DOOR 831 SLIDE RAFT PER AMM 25-62-44 (AALA202505060987) AND REPLACED THE BATTERY FOR EMERGENCY POWER SUPPLY 10WL PER AMM 33-51-38. (AALA202505066733) A SATISFACTORY OPERATIONAL TEST OF THE EMERGENCY POWER SUPPLY SYSTEM WAS ACCOMPLISHED WITH NO FAULTS NOTED.