Boeing 307 Stratoliner crash, Mar 18, 1939 (10 killed), A...
Boeing 307 Stratoliner accident on March 18, 1939 near Alder Washington, United States with 10 fatalities. Cause: Structural failure of the wings and...
- Date: March 18, 1939
- Aircraft: Boeing 307 Stratoliner
- Location: Alder Washington, United States
- Fatalities: 10
- Phase of flight: En route
- Cause: Structural failure of the wings and horizontal stabilizers after the aircraft stalled, spun and dived during a test flight.
The first Boeing 307 Stratoliner prototype stalled and spun during a test flight near Alder, Washington, then broke up in the air. All ten people aboard, including crew and observers from TWA and KLM, were killed.