[frau kaleun]

Originally Posted by krashkart

Geez, that poor guy.

Yep. Found it:

Kptlt. Rolf Mützelburg died on 11 September, 1942 in a freak accident. Taking the opportunity to go swimming in the Atlantic southwest of the Azores, he dived from the conning tower and struck the deck with his head and shoulder when the boat lurched suddenly in the swell.* The doctor from the Milk Cow U-462 arrived the next day, but too late, and Rolf Mützelburg was buried at sea on 12 September, 1942 in position 36.14N, 31.21W.

*Teddy Suhren in his biography states that Mützelburg hit the saddle tanks and not the deck though.

http://www.uboat.net/men/muetzelburg.htm