In article ,
"Morgans" wrote:

"Skywise" wrote

For the period I was watching, which was only for the last
half dozen circles or so, the altitude reported was 50K.
In fact, the track log bears this out.


http://flightaware.com/live/flight/N.../KNKX/tracklog

WOW!!! Descent from FL500 to 700 ft in 23 minutes!