As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4104, CREW REPORTED RIGHT MAIN LANDING GEAR DID NOT SHOW UP AND LOCKED ONLY IN TRANSIT. CREW RETURNED TO MQT WITH NO FURTHER INCIDENTS. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED RIGHT MAIN LANDING GEAR UPLOCK BOX IAW EMB AMM 32-33-10 AND NR 8194;AND NR 8194;AND NR 8194; AIRCRAFT RETURNED TO SERVICE.