As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MAINTENANCE WALK AROUND CHECK, THE AFT CABIN OVERHEAD EMERGENCY EXIT LIGHT WOULD NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE BATTERY CARTRIDGE FOR THE AFT CABIN OVERHEAD EMERGENCY EXIT LIGHT IAW BOEING MM 33-51-81. THE AFT CABIN OVERHEAD EMERGENCY EXIT LIGHT NOW OPERATES NORMALLY. (M)