As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR SELECTED UP AFTER TAKEOFF. UNSAFE LIGHT WOULD NOT GO OUT AND AIR NOISE FROM NOSE GEAR DOORS OPEN. 2 GEAR CYCLE ATTEMPTS WITH NO CHANGE. RETURNED TO GSO (PTI) AIRPORT, LANDED WITH NORMAL GREEN LIGHTS. AIRCRAFT TURNED OVER TO MFG SERVICE CENTER FOR REPAIR. NOSE GEAR UPLOCK SWITCH FOUND DEFECTIVE. REPLACED SWITCH OPERATION CHECKED NORMAL. (K)