As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YUM - LANDING GEAR FAILS TO RETRACT ON TAKEOFF. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. AIRCRAFT FERRIED TO FAT FOR REPAIRS. MAINTENANCE RESET LANDING GEAR EMERGENCY SELECTOR VALVE PIN. PERFORMED GEAR SWINGS AND OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (X)