No fatalities

Engine Explosion During Landing at Huntsville Airport (CF-ACX)

Huntsville, CanadaLanding (descent or approach)

On September 11, 1933, a Buhl CA-6 Standard AirSedan (registration CF-ACX) operated by National Air Transport - Canada was involved in an aviation accident near Huntsville, Canada during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The accident resulted from an engine explosion occurring upon landing. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 2 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-08-04Data APIEditorial standards

An aircraft suffered a catastrophic engine failure upon landing at Huntsville Airport, causing it to leave the runway and burn completely with no injuries reported.

What happened

During the final approach and landing phase at Huntsville Airport, the aircraft experienced a sudden mechanical failure. Specifically, the engine exploded while the airplane was on the ground. This catastrophic event immediately compromised the aircraft's controllability. The pilot was unable to maintain directional control, causing the airframe to veer off the paved runway surface. Following this deviation, the aircraft came to a stop in an uncontrolled position. Shortly after coming to rest, the structure burst into flames. The fire consumed the entire airplane, resulting in total destruction of the airframe. Fortunately, there were no casualties associated with this incident.

Findings

The official investigation identified the primary factor leading to the accident as the mechanical failure of the propulsion system. The specific cause was determined to be an engine explosion that occurred during the landing sequence.

Probable cause

The accident resulted from an engine explosion occurring upon landing.