reply to post by iokazmi
Well, iokazmi. I'll take any "YAHOO" I can get, even it it is
Hence, WEATHER and PILOT OVER CONFIDENCE IS THE CULPRIT,
It would seem you are incorrect -- some preliminary reports I've seen on the media are suggesting something else.
WHY NOT GPS BASED DATA as primary, WHY RELY ON PITOT'S ICING scenarios?
Let me see if I know what you're asking. You ask about GPS-based data as primary....primary for what? You are
aware of EGPWS, correct? It
is already becoming quite standard on almost every modern passenger jet. And, it is GPS-based.
If you're suggesting that GPS can help with WX avoidance, then I am at a loss to understand how. Or, did you actually not
(as I initially thought) and actually meant to write "Pitot", as in tube???
OIC, maybe you're advocating some sort of GPS-based system for PRIMARY Speed, Altitude and such information? Well...sounds interesting. perhaps as
an adjunct...I'll have a look at your site.
For the benefit of others in the ATS audience, here's what I am referring.
There is some speculation that one, or more of the 'pitot tubes' (the probes you can see, usually somewhere on the nose, under the cockpit windows)
may have iced over. These probes are electrically heated just to prevent this from happening. The talking about it is implying that, under certain
conditions, they didn't get hot enough. Seems that Airbus were aware, and recommended replacement...either of the actual probes, or circuitry,
For further enlightenment, it is typical for the pitot probes to be turned on before take-off (also energizes other devices). However, to prevent
over-heating damage, there is a sensor that reduces the current to the probes while on the ground, switching to a higher current (and temperature)
after lift-off. I guess the prevailing concern is that they didn't get hot enough.
Items of this nature are often left to the discretion of the manufacturer and the operator (airline) to decide just how timely the repairs/alterations
should be made.
As I've repeated on this board, there are links that form a chain of events leading up to accidents. This may be a link......
[edit on 6/9/0909 by weedwhacker]