As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS GROUNDED. NOSE GEAR FAIL TO RETRACT ON GO AROUND WITH GEAR HANDLE UP. RED ON FWD PANEL - NO LIGHTS ON OH PANEL. THE FLIGHT DECLARED AN EMERGENCY, PROCEEDED WITH GO AROUND, AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NLG LOCK ACTUATOR IAW AMM 32-33-21. (SEE ALSO SDR AALA20170601008)