. "US National Transportation Safety Board" . . . . . . "rail safety" . "Go-team" . . . . "Go Team" . . "U.S. National Transportation Safety Board" . "go team" . . . . . . . "NTSB" . . . . . "investigation" . . "400" . "NTSB \\\"go team\\\"" . . . "Other Government Agencies" . . "National Transportation Safety Board" . "National Transportation Safety Board (\\\"NTSB\\\")" . . . . . . "1.06E8" . . "National Transportation Safety Board's" . "National Transportation Safety Board" . "1967-04-01" . . "National Transportation Safety Board (NTSB)" . "\\\"go team\\\"" . . . . . "1967" .