Original story here, in German:
Helgoland-Video: Flugzeug rast im Tiefflug über Strandurlauber - News Inland - Bild.de
It says, a doctor and his two sons were visiting the island and he had already videotaped some 4 or 5 approaching planes before this one, which to him seemed to come in much lower than the others. Which is sort of true, I suppose
