What was found
(CAN) AFTER REPORTING RT GEAR DOOR AMBER LIGHT REMAINED ON AFTER GEAR UP SELECTION, THE FLIGHT CREW ELECTED TO RETURN. QRH COMPLETED AND GEAR CYCLED AT FLAP 0, LIGHT REMAINED ON, HOWEVER, THE F/A REPORTED ALL GEAR DOORS APPEARED TO BE FULLY CLOSED. MAINTENANCE ACTIVITY. RT FWD MLG DOOR PROXIMITY SENSOR ADJUSTED, INDUCTANCE AND RESISTANCE VALUES CHECKED IAW TIB 8-32-14, GEAR SWINGS CARRIED OUT CHECKED SERVICEABLE IAW AMM.