Originally Posted by
tev9999
That doesn't look right, since the full route isn't shown, and their
track log has 15 minutes' worth of data.
BTW, that log also indicates a maximum altitude of 18400' which is a good thing - time of useful consciousness is a
lot higher there than it is at typical cruising altitudes. AQ243's incident years ago occurred at 24000'.
The log further indicates that they descended to 10000' (where basically anyone can breathe even without the oxygen masks, but especially with them) for most of the remainder of the trip.