737 routing at 23000 ft.
Simples really,
Why would a 737 route from Kassel, North Germany all the way to Mallorca at 23K, fuel burn must be very high not to mention outside of normal IFR airways? Happened on Tuesday evening, seemed to be an uneventful flight otherwise. (FR24 mis-squawking?)
Thanks in Anticip,
Imagegear.