Post-war:
Broken up at Baltimore in 1950.

At 20.00 hours on 26 May 1942 the unescorted Atenas (Master Trygve Angell) spotted a periscope one point off the port beam about 175 miles south of the entrance to the Mississippi River. It moved slowly toward the vessel, so the master changed course so that the 4in stern gun (the only other guns on the ship were two .30cal guns) could be cleared and fired. After four shots on the periscope, it disappeared. She then proceeded with southerly course in a zigzagging pattern.

At 04.00 hours on 27 May, U-106 opened fire with the 37mm AA gun at the Atenas from about 1500 metres. Rasch planned to stop the zigzagging ship by gunfire, but his deck gun was out of order, so he tried unsuccessfully to bring down the radio antenna with the AA gun. Again the master changed course and the stern gun fired at the U-boat, which submerged after the first shot and gave up the attack. Seven shells had hit the port side and started two small fires but did little damage. There were no casualties among the eight officers, 46 men, eight armed guards and ten passengers. At daylight, the Atenas hove to while the holes in the hull were plugged. She continued on her voyage zigzagging constantly and arrived safely.