What was found
FLIGHT 1796 EN-ROUTE, EICAS, GEAR DISAGREE, WITH DOORS LIGHT & RT GEAR DOOR DOWN. FOLLOWED QRH & USED ALTERNATE GEAR EXTENSION ALL GEAR DOWN. GEAR DISAGREE WAS WITH GEAR HANDLE UP & OFF. THE FLIGHT RETURNED TO FIELD & LANDED WITHOUT FURTHER INCIDENT. R & R RT GEAR TILT ACTUATOR IAW AMM 32-32-15. LEAK CHECK, OPERATIONS CHECKED GOOD. GEAR SWUNG SEVERAL TIMES, OPERATIONS CHECKED GOOD IAW 32-33-00.