As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM SKBO, GEAR HANDLE WAS PLACED UP. ALL GEARS RETRACTED, BUT RT DOOR DIDN'T CLOSE. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND STOWAWAY IN GEAR DOOR OPERATION. PERFORMED A VISUAL INSPECTION AND OPERATIONAL CHECK GOOD IN ACCORDANCE WITH MM 32-12-00. AIRCRAFT RETURNED BACK TO SERVICE.