During the NTSB hearing on AA587 last November, the NTSB Investigator-In-Charge Robert Benzon included the following in his
opening statement:
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Opening Statement of NTSB Investigator-In-Charge Robert Benzon
Flight Data Recorder problems
…….. In 1994, the Safety Board recommended to the FAA that such filtering systems be removed from information sent to flight data recorders, and yet in 2001 this investigation was hampered by totally unacceptable filtering of FDR data. In addition, the sample rates of data are not adequate. Staff and the Board are addressing these issues separate from this hearing.
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Can anyone tell me:
(a) Has the FAA since required such filtering systems to be removed?
(b) If not, to what extent have airlines, aircraft manufacturers, or FDR manufacturers voluntarily removed them (particularly from Airbus a/c)?
