(This is a very strange revelation. I wish those of you who don't have NYT's registration could read the whole thing. Maybe it's worth the registration for the read)
F.A.A. Official Scrapped Tape of 9/11 Controllers' Statements
By MATTHEW L. WALD
ASHINGTON, May 6 — At least six air traffic controllers who dealt with two of the hijacked airliners on Sept. 11, 2001, made a tape recording that day describing the events, but the tape was destroyed by a supervisor without anyone making a transcript or even listening to it, the Transportation Department said today.
The taping began before noon on Sept. 11 at the New York Air Route Traffic Control Center, in Ronkonkoma, on Long Island, but it was later destroyed by an F.A.A. quality-assurance manager, who crushed the cassette in his hand, cut the tape into little pieces and dropped them in different trash cans around the building, according to a report made public today by the inspector general of the Transportation Department. The inspector general, Kenneth M. Mead, had been asked by Senator John McCain, chairman of the Senate Commerce Committee, to look into how well the Federal Aviation Administration had cooperated with the 9/11 Commission.
The quality-assurance manager told investigators that he had destroyed the tape because he thought making it was contrary to F.A.A. policy, which calls for written statements, and because he felt that the controllers "were not in the correct frame of mind to have properly consented to the taping" because of the stress of the day, Mr. Mead reported.
(SNIP)
Neither the center manager nor the quality-assurance manager disclosed the tape's existence to their superiors at the F.A.A. region that covers New York, or to the agency's Washington headquarters, according to the report. None of the officials or controllers were identified in the inspector general's report.
Other tapes were preserved, including conversations on the radio frequencies used by the planes that day, and the radar tapes. In addition, the controllers later made written statements to the F.A.A., per standard procedure, and in this case, to the F.B.I. as well.But when one of the controllers asked if she could review her portion of the audiotape to refresh her memory before giving her witness statement, she was told she could not, according to Mr. Mead's report.
http://www.nytimes.com/2004/05/06/national/06CND-TAPE.html?hp=&pagewanted=print&position=