 "U-569" was attacked by the escorts of Convoy UC-1 on 23 February 1943 and seriously damaged.She had departed La Pallice on 7 February 1943 and returned there on 13 March.The boat was badly damaged by four depth charges dropped by one TBM Avenger,piloted by William F. Chamberlain, from the escort carrier on 22 May 1943.