Casualties unknown

1998-01-08: Cessna 180H (N9737G) — Chugiak, AK

Chugiak, AK, US

On January 8, 1998, a Cessna 180H (registration N9737G) was involved in an aviation accident near Chugiak, AK. Investigators recorded the probable cause as: the pilot's selection of an unsuitable area for landing. A factor relating to the accident was: the crusty, snow covered surface of the airstrip. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A tailwheel airplane nosed over during landing on a snow-covered airstrip when the left tire broke through the compacted crust, resulting in damage to the right wing, lift strut, vertical stabilizer, and propeller.

Accident Overview

A pilot flying a tailwheel-equipped airplane experienced an accident while landing on a small, snow-covered airstrip. The surface of the snow had been compacted by numerous snow machine tracks, creating a crusty layer. Prior to landing, the pilot performed a low pass to assess the runway conditions.

Landing and Sequence of Events

After the low pass, the pilot proceeded to land. During the landing roll, the left tire broke through the crusty surface of the snow and sank. This caused the airplane to nose over. The aircraft sustained damage to the right wing, the right wing lift strut, the vertical stabilizer, and the propeller.

Aircraft and Conditions

The airplane was tailwheel-configured. The airstrip was small and covered with snow. The snow surface was compacted by snow machine tracks, which likely created a variable crust strength. The low pass was intended to assess the runway, but the surface conditions still led to the tire penetration.

Damage Assessment

Specific damage items include the right wing, the right wing lift strut, the vertical stabilizer, and the propeller. No other damage or injuries were reported in the source.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X09389. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.