Casualties unknown

Airplane Crashes in Box Canyon During Hunters Transport Mission (N1590R)

Deadhorse, AK, US

On August 26, 1995, a Piper PA-18-150 (registration N1590R) operated by 40 Mile Air, Ltd was involved in an aviation accident near Deadhorse, AK. Investigators recorded the probable cause as: The pilot's improper in-flight planning and decision by flying into a box canyon. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

An airplane crashed in a box canyon while transporting two hunters between two local takeoff/landing areas known as Cub strip and 185 strip. Wreckage found at 5,000 feet with pilot and second hunter on board.

Overview

A mission to transport two hunters between two local airstrips ended with an airplane crash. The Operator reported that the pilot was to fly two trips from a small takeoff/landing area referred to locally as the 'Cub' strip to a larger area known as the '185' strip. The pilot successfully transported one hunter on the first trip but failed to return with the second.

Accident Location

Wreckage was discovered in a box canyon at an elevation of approximately 5,000 feet. The canyon entrance was narrow and featured a consistent upward slope. Due to an 'S' turn in the canyon, the box canyon could not be recognized from the entrance. The terrain immediately below the wreckage rose at a 30-degree slope, while the airplane itself came to rest on a 15-degree slope.

Canyon Dimensions

The area where the airplane crashed was approximately 300 feet wide and surrounded by vertically rising terrain, creating a confined and steep environment.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001207X04116. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.