As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE GEAR LATCH WOULD NOT RELEASE AFTER TAKEOFF. THE GEAR HANDLE WOULD NOT MOVE TO THE UP POSITION. CIRCUIT BREAKERS WERE PULLED AND RESET IAW QRH PROCEDURES, BUT WITH NO CHANGE. THE AIRCRAFT WAS RETURNED TO GSO WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LANDING GEAR CONTROL LEVER LOCK SOLENOID AT FAULT. THE SOLENOID WAS REMOVED AND REPLACED.