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Atlas / NTSB / WPR12CA284

NTSB CAROL · Event

Event WPR12CA284

2012-07-02 West Glacier, Montana, United States Airport · 2MT1 Minor 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The pilot elected to abort the takeoff without sufficient runway available to land and stop the airplane. Contributing to the accident was the illusion created by the rising terrain, which influenced the pilot's decision to abort the takeoff.

Factual narrative

The pilot reported that the airplane accelerated normally on the takeoff roll, became airborne between 1,000 and 1,200 feet down the 2,500-foot runway, had a positive rate of climb, but wasn’t climbing as he would have expected. The pilot elected to abort the takeoff and reduced power, but then realized that he did not have enough runway remaining to land. As the pilot was adding power to abort the landing the airplane contacted the ground, departed the runway and came to rest about one-quarter mile beyond the end of the runway after colliding with a log. The pilot stated that he felt the optical illusion of rising terrain and a rising runway caused him to feel that the airplane was not climbing adequately. The pilot reported that the airplane accelerated normally on the takeoff roll. It became airborne between 1,000 and 1,200 feet down the 2,500-foot runway, had a positive rate of climb, but was not climbing as he would have expected. The pilot elected to abort the takeoff and reduced power but then realized that he did not have enough runway remaining to land. As the pilot was adding power to abort the landing the airplane contacted the ground, departed the runway, and came to rest about 1/4 mile beyond the end of the runway after colliding with a log. The airplane sustained substantial damage to the right wing. The pilot stated that he felt the optical illusion of rising terrain and a rising runway caused him to feel that the airplane was not climbing adequately. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Personnel issues-Action/decision-Action-Incorrect action sequence-Pilot - C
  • F Personnel issues-Action/decision-Info processing/decision-Identification/recognition-Pilot - F
  • F Personnel issues-Psychological-Perception/orientation/illusio-Visual illusion/disorientation-Pilot - F

Verbatim from NTSB's published report. Source file NTSB_2012_WPR12CA284.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.