As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATL CREW REPORTED ON LG RETRACTION THE NOSE GEAR DOOR DID NOT CLOSE & RED NOSE GEAR DOOR LIGHT REMAINED ON. EMERGENCY DECLARED FLIGHT RETURNED ATL LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. SERVICED NLG STRUT. SYS GND CHECKED NORMAL OPERATION CLOSED.