De Havilland DH.4 crash, May 21, 1920, Sacramento-Mather...
De Havilland DH.4 accident on May 21, 1920 near Sacramento-Mather California, United States with no fatalities.
- Date: May 21, 1920
- Aircraft: De Havilland DH.4
- Location: Sacramento-Mather California, United States
- Fatalities: 0
- Phase of flight: Approach and landing
A United States Army Air Service De Havilland DH.4 crashed on landing at Mather Field, near Sacramento, California, on 21 May 1920.