On the morning of 11 August 1943 "U-185" rendezvoused with the stricken , which had been badly damaged after two attacks by US aircraft and the destroyer , but which began to transfer provisions, fuel oil and spare parts to "U-185". arrived later to assist, but the concentration of U-boats was detected by HF/DF; as a result, the surfaced boats were attacked by a United States Navy PBY-4 Liberator, of Squadron VB-107. "U-172" escaped, the crew of "U-185" opened fire with AA guns, shooting down the aircraft, killing the crew of three.