The crash was at 10:40. The alarm was sounded at 10:56.
According to the Polish journalist, who was a witness of the crash from the window of the nearby hotel, he was at the crash site around 10:47 and you can see the first firemens arrive some 2 minutes later on his film.
Now, a question comes to my mind.
Temp. around 0-1 Celsius. Heavy fog. Cold plane.
Icing??
Arrakis