Single-engine aircraft crash during aborted landing at seaplane base

1 fatality • Kasaan, United States of America • Landing (descent or approach)

An aircraft crashed into a wooden shoreline walkway following an unsuccessful landing attempt and a subsequent steep turn near terrain obstacles.

What happened

While attempting to land at a seaplane base situated within a bowl-shaped cove, the pilot encountered significant water swells. This caused the aircraft to touch down too far along the waves, prompting the pilot to execute a go-around maneuver.

During this aborted landing attempt, the pilot performed a sharp turn at a low altitude to navigate around rising terrain and nearby buildings. During this maneuver, the aircraft entered an uncontrolled descent and struck a wooden walkway located near the seaplane dock along the shoreline. There were no indications of engine failure or mechanical malfunction prior to the impact.

The accident resulted in one fatality and two serious injuries.

Findings

Investigations into the crash identified several contributing factors related to environmental conditions and pilot actions. The terrain was characterized by hilly surroundings and high obstructions, while the water surface was rough due to unfavorable wind conditions.

Key findings regarding the flight sequence include an inadequate airspeed and a delayed decision to abort the landing. The aircraft ultimately entered an inadvertent stall during the low-altitude maneuver, leading to the loss of control in flight.

Probable cause

The pilot's attempt to execute a steep turn at low altitude with insufficient airspeed led to an inadvertent stall and subsequent loss of control.

Frequently asked questions

What happened in the 1988-12-14 De Havilland DHC-2 Beaver accident near Kasaan, United States of America?

An aircraft crashed into a wooden shoreline walkway following an unsuccessful landing attempt and a subsequent steep turn near terrain obstacles.

Were there any fatalities in the 1988-12-14 De Havilland DHC-2 Beaver accident?

The accident was fatal, resulting in 1 fatality.

What aircraft was involved and where did it happen?

The accident on 1988-12-14 involved a De Havilland DHC-2 Beaver, registration N89U, operated by Ketchikan Air Service, at Kasaan, United States of America.

What was the probable cause of the accident?

The pilot's attempt to execute a steep turn at low altitude with insufficient airspeed led to an inadvertent stall and subsequent loss of control.

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