Audio tape recordings of conversations that took place after the Kennedy assassination are available at GPO and the National Archives.
November 22, 1963 is when President John F. Kennedy was assassinated. The audio tape recordings are of conversations between various individuals in Washington, DC, Air Force One pilots, and officials on board the flight from Dallas to Andrews Air Force Base following the assassination of President Kennedy. One conversation is of President Lyndon B. Johnson being connected to Rose Kennedy to offer his condolences.
Air Force One Flight Deck Recording (Side 1)
Air Force One Flight Deck Recording (Side 2)