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WPR13CA213

2013-07-02 · Fort Smith, Montana, United States · Serious · 1 aircraft · Status: Completed

Current FAA registration · N302MX

Make / Model
AVIAT AIRCRAFT INC A-1B
Engine
LYCOMING O-360-A1P (180 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20060630
ADS-B equipped
Yes — Mode-S A327E9

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's improper decision to land on rough terrain at a high density altitude.

Factual narrative

The pilot reported that he was conducting a wildlife survey flight and had been airborne about 2.5 hours, when the observer said that he would like to take a break. At that time, the flight was over a high mesa covered in short grass, which the pilot decided was a suitable landing area. The touchdown was smooth, but the airplane encountered undulating terrain during the rollout and began to bounce. The pilot added full power to abort the landing, and the airplane's speed began to increase; however, the pilot was unable to take off before impacting a bush. The airplane traveled several hundred feet down a ravine and came to an abrupt stop. The airplane's main landing gear collapsed, and both wings sustained substantial damage. The pilot estimated that the density altitude at the landing site was about 8,950 feet. He stated that the accident could have been avoided had he "made the decision not to land off-airport in that area at such density altitudes." The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot reported that he was conducting a wildlife survey flight and had been airborne about 2.5 hours, when the observer said that he would like to take a break. At that time, the flight was over a high mesa covered in short grass, which the pilot decided was a suitable landing area. The touchdown was smooth, but the airplane encountered undulating terrain during the rollout and began to bounce. The pilot added full power to abort the landing, and the airplane's speed began to increase; however, the pilot was unable to take off before impacting a bush. The airplane traveled several hundred feet down a ravine and came to an abrupt stop. The airplane's main landing gear collapsed, and both wings sustained substantial damage. The pilot estimated that the density altitude at the landing site was about 8,950 feet. He stated that the accident could have been avoided had he "made the decision not to land off-airport in that area at such density altitudes." The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • — Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-High density altitude-Effect on equipment
  • C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
  • — Environmental issues-Physical environment-Terrain-Rough terrain-Awareness of condition

Verbatim from NTSB's published report. Source file NTSB_2013_WPR13CA213.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.