Date:	Sunday 21 April 1929
Time:	11:45
Type:	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
Category:	Accident
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

Narrative:
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

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

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