Casualties unknown

Pilot Reports Icing, Descends; Aircraft Found Five Days Later after Mountain Impact (N20NK)

Pagosa Springs, CO, US

On April 23, 1997, a Socata TB-20 (registration N20NK) operated by Michael K. Brouillette was involved in an aviation accident near Pagosa Springs, CO. Investigators recorded the probable cause as: inadvertent flight by the pilot into known adverse weather conditions, and his failure to maintain altitude or clearance from terrain. Factors relating to the accident were: low ceiling, rain, snow, icing conditions, and mountainous terrain. 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 on a cross-country flight encountered deteriorating weather and requested IFR clearance, which was not accepted. He reported tailplane icing and descended. The aircraft was found five days later after crashing into a mountain at 11,100 ft.

Accident Sequence

While en route on a cross-country flight, the pilot observed worsening weather conditions. He contacted a Flight Service Station (FSS) and requested a change from VFR to IFR clearance. However, because he could not climb to the IFR minimum en route altitude (MEA) due to visual conditions and crossing traffic, the request was denied. The pilot then informed the controller that he suspected "picking up tail plane ice" and intended to descend to improve visibility and plan an alternate route.

Later that day, the pilot's wife reported that he had not arrived, prompting the issuance of an ALNOT. After five days, the aircraft was located where it had impacted a mountain at 11,100 feet mean sea level, near the area of the last radio contact. Impact marks indicated the aircraft was in level flight at the time of the crash. The aircraft partially burned following the impact.

Investigation

At the time of the accident, weather in the area was reported as low clouds, with mountain tops obscured, rain, and snow. Due to weather conditions, investigators were unable to access the site until August 5, 1997. The accident occurred on April 23, 1997.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X07699. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.