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5 fatalities

Fatal Spraying Mission Crash Near Phan Rang (56-4373)

Phan Rang, VietnamFlight

On February 10, 1971, a Fairchild C-123 Provider (registration 56-4373) operated by United States Air Force - USAF (since 1947) was involved in an aviation accident near Phan Rang, Vietnam in flight. 5 people were killed. Investigators recorded the probable cause as: Crew error. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Source recordUpdated 2026-09-03Data APIEditorial standards

An aircraft crashed near Phan Rang during a mosquito spraying mission, killing all five crew members. The official investigation attributed the accident to crew error.

Incident Overview and Casualties During a spraying mission aimed at controlling malarial mosquitoes, an aircraft crashed near Phan Rang. The circumstances leading to the crash were not specified in the available source. All five individuals on board were killed in the accident. ## Crew Members The five crew members who perished were identified as 1st Lt Charles Milton Deas, 1st Lt Richard William O'Keefe, Lt Col Daniel Harrison Tate, M/Sgt Donald Louis Dunn, and T/Sgt Clyde Wendell Hanson. ## Official Findings The official investigation determined that the probable cause of the accident was crew error. No additional details regarding the aircraft type, registration, operator, or specific location beyond the vicinity of Phan Rang were provided in the source.

Related events

Same operator

Frequently asked questions

What happened in the 10 Feb 1971 Fairchild C-123 Provider accident near Phan Rang, Vietnam?

An aircraft crashed near Phan Rang during a mosquito spraying mission, killing all five crew members. The official investigation attributed the accident to crew error.

Were there any fatalities in the 10 Feb 1971 Fairchild C-123 Provider accident?

The accident was fatal, resulting in 5 fatalities.

What aircraft was involved and where did it happen?

The accident on 10 Feb 1971 involved a Fairchild C-123 Provider, registration 56-4373, operated by United States Air Force - USAF (since 1947), at Phan Rang, Vietnam.

What was the probable cause of the accident?

Crew error

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