3 fatalities

Airlift Aircraft Destroyed by Enemy Fire Near Cambodian Border (62-4177)

An Lộc, VietnamFlight

On August 26, 1968, a De Havilland DHC-4 Caribou (registration 62-4177) operated by United States Air Force - USAF (since 1947) was involved in an aviation accident near An Lộc, Vietnam in flight. 3 people were killed. Investigators recorded the probable cause as: Shot down by enemy fire. 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 airlift aircraft was hit by enemy fire on its starboard wing near the Cambodian border, causing it to crash in flames and killing all three crew members.

Incident Overview During an airlift operation near the Cambodian border, the aircraft sustained damage from enemy fire directed at its starboard wing. The impact caused the airplane to lose control, resulting in a crash in flames. All three crew members on board were killed in the incident. ## Crew Members The aircraft was operated by a three-person crew, consisting of Captain Robert George Bull, First Lieutenant Ralph William Manners, and Airman First Class David Frederick Sleeper. ## Official Findings The official investigation determined that the probable cause of the accident was the aircraft being shot down by enemy fire.

Frequently asked questions

What happened in the 26 Aug 1968 De Havilland DHC-4 Caribou accident near An Lộc, Vietnam?

An airlift aircraft was hit by enemy fire on its starboard wing near the Cambodian border, causing it to crash in flames and killing all three crew members.

Were there any fatalities in the 26 Aug 1968 De Havilland DHC-4 Caribou accident?

The accident was fatal, resulting in 3 fatalities.

What aircraft was involved and where did it happen?

The accident on 26 Aug 1968 involved a De Havilland DHC-4 Caribou, registration 62-4177, operated by United States Air Force - USAF (since 1947), at An Lộc, Vietnam.

What was the probable cause of the accident?

Shot down by enemy fire.