 As the second patrol came to an end in February 1944 after five frustrating months at sea, "U-193" caused an international incident following an attack by Allied aircraft and convoy escorts off the Spanish coast.In her desperate attempts to escape, she dived straight into the seabed, causing serious damage to the boat.Knowing a journey to a German-held port was now impossible, her captain, Hans Pauckstadt, decided to intern his boat in Ferrol, Spain.