No fatalities

BEECH A36 accident at Port Alsworth, AK, 20 Mar 2021

Port Alsworth, AK, United States

On March 20, 2021, a BEECH A36 operated by Lake Clark Air was involved in an aviation accident near Port Alsworth, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings. This summary draws on records from NTSB; 17 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings.

— NTSB Determination

Contributing factors

PilotAwareness of condition

Frequently asked questions

What happened in the 20 Mar 2021 BEECH A36 accident near Port Alsworth, AK?

The pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings.

Were there any fatalities in the 20 Mar 2021 BEECH A36 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 20 Mar 2021 involved a BEECH A36, operated by Lake Clark Air, at Port Alsworth, AK.

What was the probable cause of the accident?

The pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings.