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Old March 31st 15, 01:37 PM posted to rec.aviation.soaring
Martin Gregorie[_5_]
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Default German-Wings Copilot

On Mon, 30 Mar 2015 16:19:55 -0700, lloydbanks220921 wrote:

On Monday, March 30, 2015 at 12:56:07 PM UTC-7, Martin Gregorie wrote:
On Mon, 30 Mar 2015 17:05:44 +0000, Benedict Smith wrote:

At 16:47 30 March 2015, Martin Gregorie wrote:
I've not seen anything to show this is anything but some reporter's
imagination.


Have a look at the flightradar 24 forum,
http://forum.flightradar24.com/threa...lysed-the-raw-
data-from-the-transponder-of-4U9525-and-found-some-more-data They
detail how this was found and have also released the raw data so
anyone can check it.
Ben.

Thanks for that.

I didn't know that Mode S would carry that sort of data: presumably its
there as a way to spot a fat-fingered an altitude change setting.


--
martin@ | Martin Gregorie gregorie. | Essex, UK org |


That Airbus had CPDLC and ADS. That gives the European controlers the
ability to "See" exactly what is set in the FMC and I believe the MCP.
And I seriously doubt it was Fat-fingered to descend to that low
altitude. I am fairly certain that the conclusion of the investigators
is what happened.

I didn't mean to suggest that it was, especially as there don't seem to
have been any altitude change requests sent by either pilot or ATC: more
that, with the close stacked enroute clearances currently in use it would
be sensible for ATC to cause the system to read back what was actually
set if they'd asked the pilot to change altitude.

However, Don's reference to MH370 and one of the causes that has been put
forward for that crash does suggest a more benign reason for the A320's
altitude change: if the pilot became anoxic, realised a bit too late and
lost conciousness while he was lowering the cruise altitude, mis-setting
it as a result.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |