Reply #13: Does not confirm legitimacy of 9-11 cell phone use

[mirandapriestly]

if that is what you are trying to prove.
"Passengers are using cell phones, on the average, at least once per flight, contrary to FCC and FAA regulations, and sometimes during the especially critical flight phases of takeoff and landing"

The main safety concern seemed to be interference with landing navigational equipment, which is probably when people would be most likely to use them and that would be at a lower altitude than the cells in use on 9-11.
..."As a result, they admit to using prohibited devices and also to using permitted PEDs at prohibited flight phases, that is, during takeoff and landing. "

"Our data and the NASA studies suggest to us that there is a clear and present danger: cell phones can render GPS instrument useless for landings"