Casualties unknown

2004-11-19: Cessna U206F (N9644G) — Katmai Air Llc. — Bethel, AK

Bethel, AK, US

On November 19, 2004, a Cessna U206F (registration N9644G) operated by Katmai Air Llc. was involved in an aviation accident near Bethel, AK. Investigators recorded the probable cause as: The pilot's inadequate evaluation of the weather conditions, and his inadequate compensation for the wind conditions, which resulted in a loss of control and subsequent nose over during taxi from landing. A factor contributing to the accident was a tailwind. 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

During a positioning flight, the pilot exited the runway and turned toward parking. A right quartering tailwind lifted the tail, causing the airplane to nose over and sustain damage to the left wing, strut, and vertical stabilizer.

Accident Summary

A positioning flight concluded with an unexpected nose-over after the airplane encountered a strong tailwind while maneuvering on the ground. The airline transport certificated pilot had exited the runway via a taxiway and was proceeding toward the ramp area of the airport. As the pilot turned the airplane toward the parking area, a right quartering tailwind lifted the tail of the airplane, causing the airplane to nose over. The incident resulted in damage to the left wing, left wing strut, and vertical stabilizer.

Weather Conditions

At the time of the incident, a special weather observation at the airport reported winds from 160 degrees true at 26 knots, with gusts to 35 knots. This wind information provided an indication of the challenging conditions present during the ground maneuver.

Pilot's Weather Information

The pilot indicated that his source of weather information was the Automated Terminal Information System (ATIS) and a wind check with the air traffic control tower. According to the pilot, the reported wind was 130 degrees magnetic at 22 knots, gusting to 27 knots. The discrepancy between the observed wind and the pilot's reported wind highlights the variability of wind conditions at the time.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20041123X01857. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.