Casualties unknown

Aircraft Encounters Heavy Rain and Obscured Terrain During Air Race (N7858P)

Hayden, CO, US

On July 11, 1987, a Piper PA-24-250 (registration N7858P) operated by James W. Thetford was involved in an aviation accident near Hayden, CO. 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 and two passengers participating in an air race from Denver, Colorado to Jackpot, Nevada encountered heavy rain near Hayden. High terrain was obscured by clouds. No pre-impact mechanical malfunction was evident.

Accident Overview

A pilot and two passengers were participating in the Denver, Colorado to Jackpot, Nevada Air Classic. The aircraft departed and was destined for Rock Springs, Wyoming.

Flight Details

According to a friend, the pilot was believed to be navigating using a recently installed RNAV system. During the flight, the pilot radioed a friend also participating in the classic, reporting that he had encountered heavy rain in the Hayden area.

Witness Observations

Witnesses stated that the high terrain in the area was obscured by clouds.

Investigation Findings

Investigators found no evidence of pre-impact mechanical malfunction of the aircraft.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X31456. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.