As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DCA - FLT 4562 - CREW REPORTED THE EMERGENCY LIGHT BY FLIGHT ATTENDANT STATION TO BE INOPERATIVE. MAINTENANCE RECONNECTED LOOSE CANNON PLUG ON THE BATTERY PACK ABOVE CEILING PANEL. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)