As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THE CREW REPORTED THAT THE RIGHT MLG WOULD NOT LOCK IN THE UP POSITION. THE ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT WHERE MX REPLACED THE RT MAIN GEAR MANUEVERING ACTUATOR, PERFORMED OPS TESTS AND CLEARED THE DISCREPANCY.