1942
https://www.google.com/search?q=Northrop+N-9M&oq=Northrop+N-9M&gs_lcrp=EgZjaHJvbWUyDggAEEUYJxg5GIAEGIoFMgkIARAAGAoYgAQyCQgCEAAYChiABDIICAMQABgWGB4yCAgEEAAYFhgeMggIBRAAGBYYHjIHCAYQABjvBTIHCAcQABjvBTIHCAgQABjvBTIHCAkQIRiPAjIHCAoQIRiPAtIBCTM0MTc4ajBqN6gCFLACAfEF9T8U5wDJwQ0&client=ms-android-samsung-
rvo1&sourceid=chrome-mobile&ie=UTF-8
It crashed and the pilot died about 10-12 years back three miles from me in Ontario CA. It was based at the Chino Airport which is a mile from me.