According to a Freedom of Information Act reply from the U.S. Bureau of Transportation Statistics, the last known pre-9/11 flights for three of the four aircraft involved in the terrorist attacks of September 11, 2001, took place in December 2000, nine months before the attacks. No pre-9/11 flight information is available for these planes during 2001.
No pre-9/11 final flight information was provided for American Airlines flight 77 (N644AA).
U.S. Code of Federal Regulations requires carriers to provide on-time data for their commercial aircraft on a monthly basis.
Title 14 § 234.4 Reporting of on-time performance.
(a) Each reporting carrier shall file BTS Form 234 “On-Time Flight Performance Report” with the Office of Airline Information on a monthly basis ... and shall contain the following information:
(1) Carrier and flight number.
(2) Aircraft tail number.
(3) Origin and Destination airport codes.
NOTE: Flight 93 and 175 were not taken out of service for nearly four years after 9/11.
Two 9/11 Airliners, Flight 93 and 175, Were Only Taken Off The FAA
'Active' List in 2005
Rense.com, By Greg Szymanski 11-26-05
The big question is, how do you reconcile the two main stories above? What were they doing to the planes prior to 9/11 and then why were they not taken out of service by the FAA until years later?
