As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 13WL FAILED FUNCTIONAL TEST. MAINTENANCE ACCOMPLISHED TSM 33-51-00-810-808-A AND FOUND THAT PASSENGER / CREW DOOR 832 SLIDE HAD EXTERIOR LIGHT / INTERIOR LIGHT FAULT MESSAGE DISPLAYED. REPLACED SLIDE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM PER AMM 25-62-44 AND AMM 33-51-00.