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 FORWARD CABIN DOOR R1 EMERGENCY EXIT LIGHT WOULD NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK FOR THE FWD R1 CABIN DOOR IAW BOEING MM 33-51-81. THE FWD R1 CABIN DOOR EMERGENCY EXIT LIGHT NOW OPERATES NORMALLY. (M)