American Bureau of Shipping 22-2274357-PDA-DUP-KMCS AutoChief 600 propulsion control system AutoChief C20 propulsion control system K-Thrust 600 K-Steering 600 K-Chief 600 marine automation system K-Chief 500 marine automation system Issued by American Bureau of Shipping Certificate type Type Approval Certificate Certificate no 22-2274357-PDA-DUP-KMCS Expiration date 07.08.2027 Document file 22-2274357-PDA-DUP-KMCS.pdf Related file(s)