3 fatalities

Supply Plane Stalls and Crashes on Approach to Drop Zone, Three Killed (N5662)

Tha Tham Bleung, LaosFlight

On July 25, 1972, a De Havilland DHC-6 Twin Otter (registration N5662) operated by Air America was involved in an aviation accident near Tha Tham Bleung, Laos in flight. 3 people were killed. Investigators recorded the probable cause as: The aircraft's speed was too low during the last turn, causing it to stall and crash. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 16 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the U.S. National Transportation Safety Board (NTSB) historical archive (1962-1981)Updated 2026-07-04Data APIEditorial standards

A supply airplane performing a low-altitude turn near a drop zone stalled and crashed. Three occupants were killed; one passenger survived. The aircraft was carrying food and crew.

Accident Overview

A supply airplane operating from Vientiane-Wattay Airport crashed while approaching a drop zone. The flight was carrying two crew members and two passengers, along with a load of 2,780 pounds of food. During the approach, the pilot executed a steep left turn while flying below the cloud base. The aircraft stalled and subsequently impacted terrain.

Occupants and Casualties

Three of the four occupants were killed in the crash. One passenger survived.

Circumstances

The accident occurred as the aircraft descended toward the drop zone. The pilot-in-command initiated a steep left turn. The aircraft's airspeed was insufficient for the maneuver, leading to an aerodynamic stall. The airplane was unable to recover and crashed.

Probable Cause

The aircraft's speed was too low during the last turn, causing it to stall and to crash.

Frequently asked questions

What happened in the 25 Jul 1972 De Havilland DHC-6 Twin Otter accident near Tha Tham Bleung, Laos?

A supply airplane performing a low-altitude turn near a drop zone stalled and crashed. Three occupants were killed; one passenger survived. The aircraft was carrying food and crew.

Were there any fatalities in the 25 Jul 1972 De Havilland DHC-6 Twin Otter accident?

The accident was fatal, resulting in 3 fatalities.

What aircraft was involved and where did it happen?

The accident on 25 Jul 1972 involved a De Havilland DHC-6 Twin Otter, registration N5662, operated by Air America, at Tha Tham Bleung, Laos.

What was the probable cause of the accident?

The aircraft's speed was too low during the last turn, causing it to stall and crash.