As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BFL - LANDING GEAR FAILED TO RETRACT AFTER TAKEOFF. AIRCRAFT RETURN TO STATION WITHOUT INCIDENT. MAINTENANCE REPLACED RT MAIN LANDING GEAR 'A' SYSTEM UPLOCK PROXIMITY SENSOR. LANDING GEAR OPERATIONAL NORMAL DURING GROUND CHECK. AIRCRAFT RETURNED TO SERVICE. (M)