What was found
DURING CLIMB-OUT AFTER LANDING GEAR RETRACTION, THE RIGHT MAIN LANDING GEAR DOOR DID NOT INDICATE CLOSED. CYCLED LANDING GEAR HANDLE WITH NO CHANGE IN INDICATION. AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE RIGHT MAIN LANDING GEAR DOOR UPLOCK PROXIMITY SENSOR TARGET LOOSE. THE TARGET LOCKING PLATE WAS REPLACED AND THE TARGET TIGHTENED. OPERATIONAL CHECK OK.