[safisoft]

Can't argue your point -- makes sense to me. I assume they filed a flight plan.

Flight planned altitudes are just that: planned. Rarely do you fly your planned altitude, but make excursions for weather or a better ride etc. They simply requested FL410 and received it.

[Dead Dog]

Whatever happend, it is good they did this now, than on a revenue flight where FL 41 was actually needed.