After touchdown (600 m from the runway 36 threshold) following an ILS approach, the Dornier yawed to the left, but the co-pilot overcorrected and the aircraft ran off the right side of the runway. After colliding with a sea wall, the aircraft fell inverted into the sea. Winds were 260deg/9 kts. PROBABLE CAUSE: “According to the investigation conducted and information obtained the following factors played a part in causing the accident. a) the failure of the PIC to take control when the aircraft touched at 20ø angle to the centreline and continued towards the western edge of the runway after landing b) The “over correction” applied by the handling pilot to the prevalent cross wind, leading the aircraft to land at 20ø to the centreline. c) the over application of right rudder to get the aircraft onto centreline and subsequently failing to get the power levers to ground idle. d) the lack of a CRM programme in the company had meant that the pilots albeit friendly, did not have a harmonious attitude towards one another; particularly the captain to the co-pilot. e) the less than effective means of imparting company policy with respect to giving co-pilots (based on experience, flight conditions) to carry out landings/take-offs.”