As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AFT EMERGENCY EXIT LIGHT SPONTANEOUSLY COMES ON AND OFF. IT WAS ALSO NOTED THAT THERE IS WATER IN THAT AREA OF THE CEILING. MAINTENANCE FOUND A DRAIN LINE HOSE CLAMP DISCONNECTED, RESECURED IT AS REQUIRED. LEAK NO LONGER OCCURS. THE NR 4 EMERGENCY BATTERY PACK WAS REPLACED PER AMM 33-51. THE EMERGENCY LIGHTS NOW OPERATE PROPERLY. THE AIRCRAFT IS OK FOR SERVICE. (LP #1074674)