Complex sentence: Specifically the surveys revealed that some of Gauls hatches were seized opened and one appeared to be secured open and that the ship's steering gear (rudder and kort nozzle) was found to be full over to port.
Split into simpler sentences: Specifically the surveys revealed that some of Gauls hatches were seized opened and one appeared to be secured open. Also, the ship's steering gear (rudder and kort nozzle) was full over to port.