As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. THE CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD. THE ACFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LANDING GEAR CONTROL PANEL. OPS CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.