No fatalities

Midair Collision Between Transworld Express DHC-6 and Cessna 172 Near Palmdale (N931MA)

Palmdale, CA, US

On August 4, 1987, a DE Havilland DHC-6 (registration N931MA) operated by Resort Commuter Inc. was involved in an aviation accident near Palmdale, CA. No fatalities were reported. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A De Havilland DHC-6 and a Cessna 172N collided at about 5,500 ft MSL near Palmdale, California. Both aircraft landed safely—the DHC-6 at William J. Fox Airport and the Cessna at Palmdale Airport.

Incident Overview

A midair collision occurred approximately 10 miles west/southwest of Palmdale, California, at an altitude of about 5,500 ft MSL. The involved aircraft were a De Havilland DHC-6, registration N931MA, operating as Transworld Express Flight 7591 (TWE 7591), and a Cessna 172N, registration N737EV. Both airplanes subsequently landed without further incident.

Flight Paths

At the time of the collision, TWE 7591 was descending and maintaining a magnetic heading of 355 degrees. The Cessna 172N was in level flight, holding a magnetic heading of 060 degrees. The convergence angle for TWE 7591 was 53 degrees, while for N737EV it was 62 degrees.

Actions of Crews

Aboard TWE 7591, the captain was piloting the aircraft. The first officer observed N737EV just prior to impact, took control of the airplane, and executed an abrupt right turn. The captain then continued the descending right turn but could not avoid the collision; the left wing of the DHC-6 struck the Cessna. The pilot of N737EV reported not seeing TWE 7591 until the moment of collision.

Outcome

Following the collision, TWE 7591 landed at William J. Fox Airport in Lancaster, California. N737EV landed at Palmdale Airport. Both aircraft landed safely, and no injuries or fatalities were reported in the source.

Frequently asked questions

What happened in the 4 Aug 1987 DE Havilland DHC-6 accident near Palmdale, CA?

A De Havilland DHC-6 and a Cessna 172N collided at about 5,500 ft MSL near Palmdale, California. Both aircraft landed safely—the DHC-6 at William J. Fox Airport and the Cessna at Palmdale Airport.

Were there any fatalities in the 4 Aug 1987 DE Havilland DHC-6 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 4 Aug 1987 involved a DE Havilland DHC-6, registration N931MA, operated by Resort Commuter Inc., at Palmdale, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X31830. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.