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Atlas / NTSB / ANC10CA096

NTSB CAROL · Event

Event ANC10CA096

2010-09-08 Chicken, Alaska, United States Airport · PFTO None 1 aircraft Status: Completed

Registry · N83395

FAA Aircraft Registry record.

Make / Model

PIPER PA-18-150

Year of manufacture

1976 · 34 years old at event

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19760706

ADS-B equipped

Yes — Mode-S AB6730

Registrant of record

JORGENSEN SPIKE C

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's decision to fly at a low altitude in terrain and weather conditions conducive to turbulence and downdrafts.

Factual narrative

The private pilot reported he and the sole passenger were on a personal Title 14 CFR Part 91 flight en route to a hunting site. While maneuvering at a low altitude to assess weather conditions and determine the viability of flying through a pass, he said he encountered turbulence and a strong downdraft. He immediately added engine power to climb, but the downdraft pushed the airplane below the tops of tall Spruce trees. The pilot said he was unable to avoid the trees, and struck trees with the right wing and then the nose of the airplane. The airplane continued to fly, and he was able to return to his home airport, where the right main landing gear collapsed on landing. The airplane sustained substantial damage to the right wing and right horizontal stabilizer. The pilot stated that there were no preimpact mechanical problems with the airplane. The private pilot reported he and the sole passenger were on a personal Title 14 CFR Part 91 flight en route to a hunting site. While maneuvering at a low altitude to assess weather conditions and determine the viability of flying through a pass, he said he encountered turbulence and a strong downdraft. He immediately added engine power to climb, but the downdraft pushed the airplane below the tops of tall Spruce trees. The pilot said he was unable to avoid the trees, and struck trees with the right wing and then the nose of the airplane. The airplane continued to fly, and he was able to return to his home airport, where the right main landing gear collapsed on landing. The airplane sustained substantial damage to the right wing and right horizontal stabilizer. The pilot stated that there were no preimpact mechanical problems with the airplane. 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).

  • Aircraft-Aircraft oper/perf/capability-Aircraft capability-Climb capability-Capability exceeded
  • C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
  • Environmental issues-Conditions/weather/phenomena-Turbulence-Terrain induced turbulence-Contributed to outcome
  • Environmental issues-Conditions/weather/phenomena-Wind-Downdraft-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2010_ANC10CA096.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (turbulence). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗