What was found
DURING CLIMB OUT WE RECIEVED AN AMBER NOSE DOOR OPEN R CAS MESSAGE. AFTER RETURNING TO THE AIRPORT I FOUND THE RIGHT NOSE DOOR RIGHT MACHANICAL LATCH UNLATCHHED. WHEN OPENNING THE DOOR I FOUND THE UPPER SAFETY LATCH DIFFICULT TO UNLOCK. I WAS ABLE TO OPEN THE DOOR BUT WAS UNABLE TO LOCK THE SAFETY LATCH WHEN CLOSING. INSPECTED LATCH PIN, NO DEFECTS NOTED AT THIS TIME ADJUSTED LATCH PIN RECEPTICAL IAW CMM 680 52-40-20 FUNCTIONAL CHECK GOOD