What was found
NRT MAINTENANCE FOUND EXTERIOR EMERGENCY LIGHT AT THE R4 DOOR NOT ILLUMINATING WHEN TESTED. THE POWER SUPPLY AND BATTERY WAS REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NRT MAINTENANCE FOUND EXTERIOR EMERGENCY LIGHT AT THE R4 DOOR NOT ILLUMINATING WHEN TESTED. THE POWER SUPPLY AND BATTERY WAS REPLACED.