No fatalities

2 Jul 2013: AVIAT A-1B — Flightline, Inc — Fort Smith, MT

Fort Smith, MT, United States

On 2 Jul 2013, an AVIAT A-1B operated by Flightline, Inc was involved in an aviation accident near Fort Smith, MT. No fatalities were reported. Investigators recorded the probable cause as: The pilot's improper decision to land on rough terrain at a high density altitude. This summary draws on records from NTSB; 6 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A pilot aborted a landing on a mesa during a wildlife survey flight after the aircraft began bouncing on undulating terrain. Despite adding full power, the aircraft could not take off before impacting a bush, resulting in substantial damage.

Incident Details

A pilot conducting a wildlife survey flight reported that after approximately 2.5 hours airborne, the observer expressed a desire to take a break. At the time, the flight was over a high mesa covered in short grass, which the pilot deemed a suitable landing area. The touchdown was smooth, but during the rollout, the airplane encountered undulating terrain and began to bounce.

The pilot responded by adding full power to abort the landing. The aircraft's speed increased, but it was unable to become airborne before impacting a bush. The airplane then traveled several hundred feet down a ravine before coming to an abrupt stop. The main landing gear collapsed, and both wings sustained substantial damage.

Pilot's Account

The pilot estimated that the density altitude at the landing site was about 8,950 feet. He reported no preimpact mechanical malfunctions or failures that would have precluded normal operation. The pilot stated that the accident could have been avoided had he "made the decision not to land off-airport in that area at such density altitudes."

Contributing factors

Causes

Pilot

Other contributing factors

Effect on equipmentAwareness of condition