17 fatalities

1942 Crash of a Three-Engine Aircraft in Bolivia (CB-17)

Rincón del Tigre, BoliviaFlight

On November 4, 1940, a Junkers JU.52 (registration CB-17) operated by Lloyd Aéreo Boliviano - LAB Airlines was involved in an aviation accident near Rincón del Tigre, Bolivia in flight. 17 people were killed. Investigators recorded the probable cause as: A navigation error committed by the crew while hampered by poor visibility and loss of bearings led to the aircraft deviating from its intended track and impacting terrain. 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 2026-08-04Data APIEditorial standards

A three-engine aircraft named 'Juan del Valle' crashed into a mountain slope in Bolivia in January 1942, killing all 17 occupants on board due to navigation errors and poor visibility.

What happened

In early 1942, a three-engine aircraft operated by the crew departed from Roboré, Bolivia, en route to Puerto Suárez. The flight originated in Santa Cruz and included intermediate stops at San Ignacio de Velasco and Roboré, carrying several officials. Due to an extended stop at San Ignacio de Velasco, the departure from Roboré was delayed. During the subsequent leg of the journey, the crew encountered deteriorating weather conditions that significantly reduced visibility. As a result, the pilots lost their navigational bearings. The captain elected to divert the aircraft to Rincón del Tigre Airfield. While descending in low-visibility conditions, the aircraft struck the slope of a mountain and crashed. The wreckage was located in an isolated area in January 1942. All 17 occupants on board were killed in the impact.

Findings

Investigations indicated that the aircraft was not following its intended flight path at the time of the accident. The crew committed a possible navigation error, which was exacerbated by the lack of visibility resulting from poor weather conditions.

Probable cause

A navigation error committed by the crew while hampered by poor visibility and loss of bearings led to the aircraft deviating from its intended track and impacting terrain.