De Havilland DH.4 crash, Mar 31, 1921 (2 killed), Biggin...
De Havilland DH.4 accident on March 31, 1921 near Biggin Hill London Metropolis, United Kingdom with 2 fatalities.
- Date: March 31, 1921
- Aircraft: De Havilland DH.4
- Location: Biggin Hill London Metropolis, United Kingdom
- Fatalities: 2
- Phase of flight: En route
An Instrument Design Establishment DH 4 with serial D8393 crashed during a turn at low altitude on 31 March 1921. The pilot, Noel Butler Hemsley, was killed.