During his depth charge attack the submarine remained surfaced and put up a barrage of intense anti-aircraft ( AA ) fire .
8 November 1943 : Lieutenant Commander William C. Murphy , the squadron commanding officer , spotted a U-boat on the surface near San Juan .
During William C. Murphy 's depth charge attack the submarine remained surfaced and put up a barrage of intense anti-aircraft ( AA ) fire .
8 November 1943 : Lieutenant Commander William C. Murphy , the squadron commanding officer , spotted a U-boat on the surface near San Juan .