Good afternoon,
Manfred von Richthofen was shot down three times and credited to aces each time:
6.3.1917
http://www.theaerodrome.com/aces/england/benbow.php
survived unharmed but maybe rather bested by Gregory while Benbow got Lübbert
6.7.1917
http://www.theaerodrome.com/aces/england/cunnell.php
survived wounded but probably rather shot down by friendly fire
21.4.1918
http://www.theaerodrome.com/aces/canada/brown3.php
killed but probably rather shot down by ground fire