Casualties unknown

Alcohol-Impaired Pilot Involved in Nighttime Crash in Hilly Terrain (N6146W)

Grand Marais, MN, US

On July 14, 1990, a Piper PA-28-140 (registration N6146W) was involved in an aviation accident near Grand Marais, MN. Investigators recorded the probable cause as: POOR JUDGEMENT OF THE PILOT DUE TO HIS IMPAIRMENT FROM CONSUMPTION OF ALCOHOL, AND HIS FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT. A FACTOR RELATED TO THE ACCIDENT WAS: PILOT FATIGUE DUE TO LACK OF SLEEP. 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 2026-09-03Data APIEditorial standards

A small aircraft crashed into wooded, hilly terrain after descending in a steep bank. Toxicology indicated the pilot had alcohol in his system, and no preimpact mechanical failure was found.

Incident Overview and Discovery of the Wreckage The aircraft crashed into a wooded area on hilly terrain and was later located at 1930 CDT on 7/15/90 by a helicopter search crew. The source does not identify the aircraft type, registration, operator, or exact location. ## Observations Before the Flight Camping companions reported seeing the pilot and two passengers awake and drinking beer between 0200 and 0300 CDT. Another pilot reported that the group was at the airport preparing for a flight at about 0630 CDT. ## Crash Evidence and Toxicology Evidence indicated that the aircraft had entered the trees while descending in a near 90-degree bank. No fuel was found in the tanks, although the aircraft was extensively damaged during impact. The investigation did not verify any preimpact part failure or malfunction. Toxicology tests of the pilot's blood, vitreous fluid, and urine showed alcohol levels of 0.068%, 0.1%, and 0.13%, respectively, or 68, 100, and 130 mg/dL.

Frequently asked questions

What happened in the 14 Jul 1990 Piper PA-28-140 accident near Grand Marais, MN?

A small aircraft crashed into wooded, hilly terrain after descending in a steep bank. Toxicology indicated the pilot had alcohol in his system, and no preimpact mechanical failure was found.

What aircraft was involved and where did it happen?

The accident on 14 Jul 1990 involved a Piper PA-28-140, registration N6146W, at Grand Marais, MN.

What was the probable cause of the accident?

POOR JUDGEMENT OF THE PILOT DUE TO HIS IMPAIRMENT FROM CONSUMPTION OF ALCOHOL, AND HIS FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT. A FACTOR RELATED TO THE ACCIDENT WAS: PILOT FATIGUE DUE TO LACK OF SLEEP.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X23625. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.