The official claims above are contradicted by a substantial amount of evidence to the contrary:
Contrary to the official claim about AA 11 and UA 175, a FDNY fireman who worked in the cleanup of Ground Zero, Nicholas DeMasi, and volunteer Mike Bellone, described their discovery in October 2001 of three of the four black boxes in the rubble of the Twin Towers. [8]
A September 18, 2001, memorandum to Governor George Pataki from New York State Emergency Management Office Director Edward F. Jacoby, Jr., reported that “Investigators have identified the signal from one of the black boxes in the WTC debris.” [9]
Gen. Paul Kern, the commanding general of the U.S. Army Materiel Command, reported in 2002 that “Radio frequency detectors developed at CECOM [Communications Electronics Command] were used to find “black box” flight recorders from the airliners that crashed into the two towers.” [10]
Although the four virtually indestructible black boxes were reportedly never found, the passport of alleged AA 11 hijacker Satam al Suqami was reportedly found near Ground Zero, [11] and life jackets and portions of seats from AA 11 were reportedly found on the roof the Bankers Trust building. How could they survive when the black boxes could not? [12]