No fatalities

Navigation Error Leads to Fuel Exhaustion and Crash Near Fort Benton (6059)

Fort Benton, United States of AmericaFlight

On September 17, 1941, an Avro 652 Anson (registration 6059) operated by Royal Canadian Air Force - RCAF was involved in an aviation accident near Fort Benton, United States of America in flight. No fatalities were reported. Investigators recorded the probable cause as: The accident occurred because the crew became lost due to the application of incorrect navigation techniques. 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)Primary reportUpdated 2026-08-05Data APIEditorial standards

A twin-engine aircraft crashed near Fort Benton, Montana, after the crew became lost during a return leg from Alberta. Both occupants sustained minor injuries following the fuel exhaustion event.

What happened

The flight originated at Claresholm Airport in southeast Alberta, where the crew departed for a planned navigation exercise to Manyberries. During the return segment of the journey, the pilots lost their position and became disoriented. As dusk fell over hilly terrain, the aircraft experienced fuel exhaustion. The airplane subsequently entered an uncontrolled dive and impacted the ground near Fort Benton, Montana. Both members of the crew survived the impact with only minor injuries.

Findings

The official investigation determined that the accident resulted from the crew's inability to maintain situational awareness. This loss of position was attributed to the use of incorrect methods for pilot navigation, which prevented them from reaching a suitable landing area before fuel reserves were depleted.

Probable cause

The accident occurred because the crew became lost due to the application of incorrect navigation techniques.