Casa 2.111 crash, Dec 11, 1977 (4 killed), Guadarrama Madrid
Casa 2.111 accident on December 11, 1977 near Guadarrama Madrid, Spain with 4 fatalities.
- Date: December 11, 1977
- Aircraft: Casa 2.111
- Location: Guadarrama Madrid, Spain
- Fatalities: 4
- Phase of flight: En route
A Casa 2111 departed Madrid on a private flight to Bournemouth with a stop in Burgos. It struck a mountain slope near Guadarrama in poor weather while flying under visual rules, and all four occupants were killed.