I just returned from FRA and I have a question now. I saw that a very small aircraft was overflying the two runways (maybe rwy 18 too) in a very low altitude all day long. What happend, did the plane check something there from the air ?
btw: I have flown with Eurowings from Dortmund. The first time for me in a prop (ATR 42-500), it was fantastic !!!