Casualties unknown

Aircraft Destroyed in Icing-Related Accident (N9085Q)

Barnum, WY, US

On October 4, 2005, a Beechcraft V35B (registration N9085Q) was involved in an aviation accident near Barnum, WY. Investigators recorded the probable cause as: the pilot's improper in-flight planning and decision to continue flight into forecasted icing conditions and the pilot's inability to maintain aircraft control due to wing contamination in the form of ice. 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 2026-06-10Data APIEditorial standards

A pilot declared an emergency while reporting ice and instrument meteorological conditions. The aircraft was destroyed by a post-impact fire after radar and radio contact were lost.

Operational Context and Weather Information The briefer advised the pilot of an AIRMET for significant weather phenomena, specifically icing occasionally moderate rime or mixed from the freezing level up through flight level two zero zero. The pilot was operating in conditions that later contributed to the accident. ## Pilot-Controller Communications According to Air Route Traffic Control Center transcripts, the pilot contacted the controller at 1011 and reported being at 10,700 feet MSL. The pilot stated he was attempting to climb, had a little bit of ice, and was having trouble climbing. At 1015, the pilot stated that he may need to make a landing. The pilot also stated that he had ice and was in instrument meteorological conditions. ## Emergency Declaration and Loss of Contact At 1022:17, the pilot declared an emergency. Following this declaration, radar and radio communications were lost. The airplane was destroyed by a post-impact fire. ## Aircraft Systems and Regulatory Findings An examination of the airplane's systems revealed no anomalies. The accident aircraft was not equipped with anti-icing or de-icing equipment. The pilot operating handbook states that flight in icing conditions is prohibited. According to Title 14 CFR Part 91.527(b), except for an airplane that has ice protection provisions, no pilot may fly under IFR into known or forecast moderate icing conditions.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20051011X01607. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.