Six air traffic controllers provided accounts of their communications with hijacked planes on Sept. 11, 2001, on a tape recording that was later destroyed by Federal Aviation Administration managers. It is unclear what information was on the tape because no one ever listened to, transcribed or duplicated it. The FAA ... said it took disciplinary action against the employee who destroyed the tape but declined to elaborate on what kind of action they took. [Earlier, an FAA official incorrectly stated that the agency took action against two employees in the case.] Hours after the [9/11 attacks] an FAA manager at the New York Air Route Traffic Control Center gathered six controllers who communicated or tracked two of the hijacked planes and recorded in a one-hour interview their personal accounts of what occurred. The manager, who is not named in the report, said that his intentions were to provide quick information to federal officials investigating the attack before the air traffic controllers involved took sick leave for the stress of their experiences, as is common practice. A second manager ... destroyed the tape between December 2001 and January 2002 by crushing the tape with his hand, cutting it into small pieces and depositing the pieces into trash cans around the building. The tape's existence was never made known to federal officials investigating the attack. The New York managers acknowledged that they received an e-mail from FAA officials instructing them to retain all materials related to the Sept. 11 attacks. But the managers decided not to include the tape in a November 2001 Formal Accident Package" report the office prepared.