# NTSB investigations, MT: Aerodynamic stall/spin

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR25LA251](https://openairdocs.org/ntsb/WPR25LA251.md): Socata TBM 700 · Kalispell, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 11, 2025 · N860CA · Destroyed
  > The pilot’s unstable approach to the runway, which resulted in an aerodynamic stall at low altitude and impact with terrain.
- [NTSB WPR25LA221](https://openairdocs.org/ntsb/WPR25LA221.md): Beech B35 · Helena, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 24, 2025 · N5204C · Substantial damage
  > The pilot’s failure to properly configure the airplane during a go-around which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall at a low altitude.
- [NTSB WPR25FA182](https://openairdocs.org/ntsb/WPR25FA182.md): Cessna 172 · Billings, MT · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 19, 2025 · N79306 · Substantial damage
  > On June 19, 2025, at 1412 mountain daylight time, a Cessna 172K airplane, N79306, was destroyed when it was involved in an accident near Billings, Montana. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB WPR24FA150](https://openairdocs.org/ntsb/WPR24FA150.md): Piper PA-18-150 · Thurlow, MT · Accident · 2 fatal · Class 3 · Field · Final report · May 14, 2024 · UNREG · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, resulting in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s distraction by his cell phone use while…
- [NTSB WPR22LA231](https://openairdocs.org/ntsb/WPR22LA231.md): James C Geyman RV-9A · Missoula, MT · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 27, 2022 · N12VV · Substantial damage
  > The pilot’s improper fuel management, which resulted in fuel starvation and a loss of engine power. Contributing to the accident was the pilot’s failure to activate the auxiliary fuel boost pump, which inhibited a successful engine restart.
- [NTSB WPR21FA258](https://openairdocs.org/ntsb/WPR21FA258.md): Cessna 172R · Missoula, MT · Accident · 2 fatal · Class 3 · Field · Final report · Jul 1, 2021 · N2388L · Substantial damage
  > The pilot’s failure to maintain airspeed and exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall at an altitude too low for recovery.
- [NTSB WPR21LA067](https://openairdocs.org/ntsb/WPR21LA067.md): Cessna 172 · Dillon, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Dec 8, 2020 · N46017 · Substantial damage
  > The student pilot’s exceedance of the airplane’s critical angle attack during an attempted go-around, which resulted in an aerodynamic stall.
- [NTSB WPR20LA245](https://openairdocs.org/ntsb/WPR20LA245.md): Cessna 337 · Ennis, MT · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 30, 2020 · N337V · Substantial damage
  > The pilot-in-command’s failure to maintain sufficient airspeed while attempting an evasive maneuver from a boxed canyon, which resulted in an aerodynamic stall/spin and impact with mountainous terrain. Contributing to the accident was the pilot-in-command’s…
- [NTSB GAA19CA432](https://openairdocs.org/ntsb/GAA19CA432.md): Aviat A1 · Ennis, MT · Accident · Minor injuries · Data collection · Final report · Jul 17, 2019 · N137C · Destroyed
  > The pilot's exceedance of the airplane's critical angle of attack while turning at low altitude, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's distraction due to looking at wildlife.
- [NTSB GAA16CA284](https://openairdocs.org/ntsb/GAA16CA284.md): Bellanca 7GCBC · Ferndale, MT · Accident · No injuries · Data collection · Final report · Jun 5, 2016 · N8777 · Substantial damage
  > The pilot's loss of directional control during takeoff resulting in a decision to rotate early, and a collision with a hangar and subsequent fire.
- [NTSB GAA16CA080](https://openairdocs.org/ntsb/GAA16CA080.md): Aviat A1 · Broadus, MT · Accident · Minor injuries · Data collection · Final report · Dec 13, 2015 · N29712 · Substantial damage
  > The pilot's failure to maintain clearance from the wires while flying at a low altitude resulting in a wire strike, a loss of airplane control, and the consequent impact with terrain.
- [NTSB WPR16FA012](https://openairdocs.org/ntsb/WPR16FA012.md): Bucker Jungmeister BU 133 · Missoula, MT · Accident · 1 fatal · Field investigation · Final report · Oct 14, 2015 · N1940J · Destroyed
  > The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack while executing a return to the runway after takeoff, which resulted in an aerodynamic stall/spin. Contributing to the accident was the pilot’s…
- [NTSB GAA15CA089](https://openairdocs.org/ntsb/GAA15CA089.md): Cessna 188 · Polson, MT · Accident · No injuries · Data collection · Final report · May 26, 2015 · N53141 · Substantial damage
  > The pilot's failure to maintain airplane pitch, power, and turn coordination while maneuvering at low altitude, resulting in an aerodynamic stall and a collision with terrain.
- [NTSB WPR15LA036](https://openairdocs.org/ntsb/WPR15LA036.md): Champion 7AC · Darby, MT · Accident · Serious injuries · Limited investigation · Final report · Nov 7, 2014 · N84462 · Substantial damage
  > The pilot's failure to maintain airspeed while maneuvering in gusting wind conditions, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.
- [NTSB WPR14LA305](https://openairdocs.org/ntsb/WPR14LA305.md): Cessna 150M · Russian Flat, MT · Accident · 1 fatal · Limited investigation · Final report · Jul 21, 2014 · N66255 · Substantial damage
  > The pilot's inadequate preflight performance planning and his operation of the airplane outside of the manufacturer's specified performance limitations, which resulted in his exceedance of the airplane's critical angle of attack and a subsequent aerodynamic…
- [NTSB WPR14CA067](https://openairdocs.org/ntsb/WPR14CA067.md): Beech 58P · Kalispell, MT · Accident · Serious injuries · Data collection · Final report · Dec 9, 2013 · N53MT · Substantial damage
  > The pilot's failure to maintain airplane control during the landing sequence.
- [NTSB WPR13FA368](https://openairdocs.org/ntsb/WPR13FA368.md): Beech E35 · West Yellowstone, MT · Accident · 1 fatal · Field investigation · Final report · Aug 12, 2013 · N3226C · Substantial damage
  > The pilot's failure to maintain airplane control while aligning the airplane with the runway for landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's…
- [NTSB WPR13FA288](https://openairdocs.org/ntsb/WPR13FA288.md): Beech J35 · Helena, MT · Accident · 1 fatal · Field investigation · Final report · Jun 24, 2013 · N8255D · Substantial damage
  > The pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall/spin and subsequent impact with terrain.
- [NTSB WPR12FA123](https://openairdocs.org/ntsb/WPR12FA123.md): Bellanca 7GCBC · Brockton, MT · Accident · 1 fatal · Field investigation · Final report · Mar 5, 2012 · N5542K · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and airplane control while maneuvering at a low altitude, which resulted in a stall and subsequent impact with terrain.
- [NTSB WPR11LA317](https://openairdocs.org/ntsb/WPR11LA317.md): Schweizer SGS 2-32 · Bigfork, MT · Accident · 1 fatal · Limited investigation · Final report · Jul 8, 2011 · N591CC · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and his excessive control inputs during a simulated rope break while taking off, which resulted in an accelerated aerodynamic stall.
- [NTSB WPR10FA330](https://openairdocs.org/ntsb/WPR10FA330.md): Piper PA-28R-180 · Dixon, MT · Accident · 4 fatal · Field investigation · Final report · Jun 27, 2010 · N7581J · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and aircraft control while maneuvering, resulting in an aerodynamic stall and collision with mountainous terrain.
- [NTSB WPR09CA388](https://openairdocs.org/ntsb/WPR09CA388.md): Aeronca 7AC · Broadus, MT · Accident · No injuries · Data collection · Final report · Aug 7, 2009 · N84787 · Substantial damage
  > The pilot’s failure to maintain sufficient airspeed during low altitude maneuvering, which resulted in an inadvertent stall.
- [NTSB WPR09LA286](https://openairdocs.org/ntsb/WPR09LA286.md): Wermling KR-2 Rand Robinson · Anaconda, MT · Accident · Serious injuries · Limited investigation · Final report · Jun 13, 2009 · N40908 · Substantial damage
  > The non-certificated pilot’s failure to maintain airspeed and aircraft control during initial climb resulting in a stall/spin.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '241' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/241/sequence?state=MT

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