Airport Weather (EDDL) is +2C, intermittent snow and a bit of sun. As we currently don't have so much sun, I planned to go spotting some flights at "my" airport. But one flight is missing today: 2U 5156 . Online table of departures says that today there was no 2U-B757, but printed EDDL flight plan says that there indeed is one 2U-B757 every saturday.

What has happened today?