No fatalities

8 Jul 2017: CESSNA 210 B — Bettles, AK

Bettles, AK, United States

On 8 Jul 2017, a CESSNA 210 B was involved in an aviation accident near Bettles, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain an appropriate glidepath during the approach to the runway over glassy water and in glaring sun conditions. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A pilot reported that during final approach to a remote airstrip bounded by a lake, glare from the sun on the water created an illusion of being higher, resulting in the airplane landing short in the lake and sinking.

Overview

A pilot experienced an accident while attempting to land at a remote airstrip. The airstrip was bounded by a lake at the approach end. The airplane landed short of the runway and sank into the lake.

Sequence of Events

The pilot initially overflew the airstrip, then circled back to land. During the final approach, the pilot encountered conditions described as "glassy water and bright sun." Subsequently, the airplane landed short of the runway in the lake and sank. The airplane came to rest in more than 500 feet of water and was not recovered.

Pilot's Report

In an interview with a Federal Aviation Administration (FAA) Aviation Safety Inspector, the pilot stated that the sun and its reflection off the lake gave him the impression that the airplane was higher than it actually was. The pilot also reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Investigation Findings

The FAA inspector reported the pilot's explanation regarding the visual illusion caused by the sun and water reflection. No additional causal factors were identified in the source material. The airplane was not recovered due to the depth of the water.

Contributing factors

Causes

PilotDescent/approach/glide path — Not attained/maintained

Other contributing factors

Effect on personnel