What was found
ON FLIGHT 3564 THE CREW REPORTED THAT AFTER THEY RETRACTED THE GEAR AFTER TAKEOFF, THE CREW HEARD REPETITIVE BANGING NOISE AND RIGHT MAIN GEAR CYCLED FROM UP & LOCKED TO IN TRANSITION BACK TO UP & LOCK EVERY 2 MINUTES. CREW TOOK DELAY VECTORS TO BURN OFF GAS - LANDED BELOW MAX LANDING WEIGHT. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED & REPLACED THE RIGHT MAIN LANDING GEAR UPLOCK BOX IAW EMB 145 AMM 32-33-10. PERFORMED OPERATIONAL CHECK OF THE LANDING GEAR. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.