Accident Ford 5-AT-B Tri-Motor NC9636, Sunday 21 April 1929
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Date:Sunday 21 April 1929
Type:Silhouette image of generic TRIM model; specific model in this crash may look slightly different    
Ford 5-AT-B Tri-Motor
Owner/operator:Maddux Airlines
Registration: NC9636
MSN: 5-AT-010
Year of manufacture:1928
Engine model:Pratt & Whitney R-1340 Wasp
Fatalities:Fatalities: 5 / Occupants: 5
Other fatalities:1
Aircraft damage: Destroyed, written off
Location:6,5 km E of San Diego Airport, CA (SAN) -   United States of America
Phase: En route
Nature:Passenger - Scheduled
Departure airport:San Diego Airport, CA (SAN/KSAN)
Destination airport:Phoenix (unknown airport), AZ
A Ford 5-AT-B Tri-Motor passenger plane crashed following a mid-air collision with US Army Air Force Boeing PW-9D (28-37) pursuit fighter plane. The fighter plane entered an uncontrolled dive after the collision. The Tri-Motor broke up and crashed.
The fighter pilot 'had been stunting and otherwise violating air traffic rules', according to an official.


The Ford Tri-Motor 1926-1992 / William T. Larkins
The Southeast Missourian - Apr 22, 1929


  • 8th worst accident in 1929
  • 14th worst accident of this aircraft type
  • 3rd worst accident of this aircraft type at the time



photo (c) SDASM Archives; San Diego, CA; April 1929

photo (c) SDASM Archives; San Diego, CA; April 1929

photo (c) SDASM Archives; San Diego, CA; April 1929

Revision history:


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