As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE LANDING GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO THE AIRPORT WITHOUT INCIDENT. UPON MAINTENANCE EXAMINATION, DETERMINED THE RIGHT MAIN GEAR 'SQUAT SWITCH' HAD MALFUNCTIONED AND ELECTRICALLY PREVENTED GEAR RETRACTION. THE SWITCH WAS REPLACED AND NORMAL OPERATION WAS RESTORED.