As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF CREW NOTICED SLIGHT BURNING SMELL AND FLIGHT DECK DOOR CONTROLLER HAD A LOCK FAIL AMBER INDICATION. DISARMED DOOR AND USED MANUAL LOCK FOR REMAINDER OF FLIGHT. FLIGHT LANDED NRT WITHOUT INCIDENT. REPLACED STRIKER ASSEMBLY AND MODULE ASSEMBLY FRO FLIGHT DECK DOOR. SYSTEM GROUND CHECK NORMAL OPERATION.