As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE NLG DID NOT RETRACT. WITH THE GEAR HANDLE UP THE GREEN NOSE GEAR LIGHT WENT OFF BUT THE RED NOSE GEAR LIGHT STAYED ON. LOOKING THROUGH THE NOSE GEAR VIEWER, THE NOSE GEAR WAS STILL DOWN AND THE TWO RED ARROWS WERE STILL ALIGNED. THE GEAR HANDLE OPERATION WAS NORMAL.