on october 27, anderson took off in a u-2f (af serial number "56-6676", former cia article 343) from a forward operating location at mccoy air force base in orlando, florida. a few hours into his mission, he was shot down by a soviet-supplied s-75 dvina (nato designation sa-2 guideline) surface-to-air missile near banes, cuba. "the loss of the u-2 over banes was probably caused by intercept by an sa-2 from the banes site, or pilot hypoxia, with the former appearing more likely on the basis of present information," stated a cia document dated 0200 hrs, october 28, 1962. anderson was killed when shrapnel from the exploding proximity warhead punctured his pressure suit, causing it to decompress at high altitude.