As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 5324 - TPA-EYW - WHILE ON PREFLIGHT WALK AROUND, PILOT NOTICED 4 FLOOR TRACK LIGHTS AND 5 EMERGENCY EXIT LIGHTS THAT WOULD NOT ILLUMINATE. MAINTENANCE ACTION WAS DEFERRED PER MEL 33-50-1. AIRCRAFT WAS RETURNED TO SERVICE. IN SUBSEQUENT MAINTENANCE, THE BATTERY PACK WAS REMOVED AND REPLACED. (M)