What was found
EN ROUTE FROM DEN TO DRO, THE FLIGHT CREW NOTICED ON THE FLAP POSITION INDICATION PORTION OF THE EICAS. SCREEN THAT THE RIGHT FLAP INDICATED A ONE DEGREE DEFLECTION AND THE LEFT FLAP WAS AT ZERO DEGREE DEFLECTION. THIS WAS NOT ASSOCIATED WITH A FAULT OR ASSEMTERY WARNING. THE FLIGHT CREW ELECTED TO RETURN TO DEN. AIRCRAFT LANDED IN DENVER WITHOUT FURTHER INCIDENT. MX INSPECTED THE AIRCRAFT IAW JIC 27-50-00. NO DISCREPANCIES NOTED. AIRCRAFT RETURNED TO SERVICE.