# Final NTSB investigations, MT

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.

Page 1 of 44 · 2,199 cases

## Latest cases

- [NTSB WPR26LA280](https://openairdocs.org/ntsb/WPR26LA280.md): Harmon Rocket II · Glasgow, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 24, 2026 · C-FCPG · Substantial damage
  > The pilot’s inadvertent selection of the fuel selector valve to the OFF position resulted in a total loss of engine power due to fuel starvation and subsequent forced landing to a field.
- [NTSB WPR26LA146](https://openairdocs.org/ntsb/WPR26LA146.md): Bell Helicopter Textron 206L-1 · Chimney Rock, MT · Accident · No injuries · Class 4 · Limited · Final report · Apr 4, 2026 · N5017G · Substantial damage
  > The pilot’s failure to maintain adequate clearance from the terrain while performing a low altitude circling takeoff maneuver, which resulted in a dynamic rollover.
- [NTSB WPR26LA105](https://openairdocs.org/ntsb/WPR26LA105.md): Piper PA-20 · Three Forks, MT · Accident · No injuries · Class 4 · Limited · Final report · Feb 13, 2026 · N1491A · Substantial damage
  > The pilot’s failure to maintain directional during the landing roll with a variable wind.
- [NTSB WPR26LA099](https://openairdocs.org/ntsb/WPR26LA099.md): Bell Helicopter Textron Canada BHT407 · Libby, MT · Accident · No injuries · Class 4 · Limited · Final report · Feb 5, 2026 · N407VS · Substantial damage
  > The pilot's failure to maintain clearance from a light post during landing.
- [NTSB WPR26LA055](https://openairdocs.org/ntsb/WPR26LA055.md): Maule M-5-210C · Eureka, MT · Accident · No injuries · Class 4 · Limited · Final report · Dec 9, 2025 · N339X · Substantial damage
  > The pilot’s failure to maintain directional control during landing in crosswind conditions. Contributing to the accident was the pilot's lack of recent flight experience.
- [NTSB WPR25LA271](https://openairdocs.org/ntsb/WPR25LA271.md): Naval Aircraft Factory N3N-3 · Red Lodge, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 31, 2025 · N45254 · Substantial damage
  > The pilot’s failure to maintain clearance from obstacles during an aborted landing. Contributing to the accident was the high density altitude weather condition.
- [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 WPR25LA243](https://openairdocs.org/ntsb/WPR25LA243.md): Cessna 172N · Ronan, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 8, 2025 · N734SW · Substantial damage
  > The student pilot's inadequate landing flare and recovery from a bounced landing.
- [NTSB WPR25LA239](https://openairdocs.org/ntsb/WPR25LA239.md): Robinson Helicopter R44 II · Ponderosa Pines, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 3, 2025 · N750GT · Substantial damage
  > The pilot’s improper pedal application during an approach to a hover.
- [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 WPR25LA194](https://openairdocs.org/ntsb/WPR25LA194.md): Bellanca 7GCBC · Helena, MT · Accident · No injuries · Class 4 · Limited · Final report · Jun 30, 2025 · N50476 · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during landing.
- [NTSB WPR25LA176](https://openairdocs.org/ntsb/WPR25LA176.md): Cessna 182M · Willow Creek, MT · Accident · No injuries · Class 4 · Limited · Final report · Jun 15, 2025 · N71450 · Substantial damage
  > The pilot’s inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB WPR25LA165](https://openairdocs.org/ntsb/WPR25LA165.md): Weatherly 620B · Lewiston, MT · Accident · No injuries · Class 4 · Limited · Final report · May 30, 2025 · N90393 · Substantial damage
  > The pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude.
- [NTSB WPR25LA151](https://openairdocs.org/ntsb/WPR25LA151.md): Stinson 108-3 · Port of Del Bonita, MT · Accident · No injuries · Class 4 · Limited · Final report · May 5, 2025 · N108RM · Substantial damage
  > The pilot’s loss of directional control while landing in gusting wind conditions.
- [NTSB WPR25LA122](https://openairdocs.org/ntsb/WPR25LA122.md): Beech C90A · Helena, MT · Accident · No injuries · Class 3 · Limited · Final report · Mar 16, 2025 · N513JM · Substantial damage
  > The failure of the left main landing gear to fully extend and lock as a result of broken downlock switch wires and the failure of the pilots to complete the manual gear extension checklist.
- [NTSB WPR25LA074](https://openairdocs.org/ntsb/WPR25LA074.md): Piper PA-18-150 · Red Rock, MT · Accident · No injuries · Class 4 · Limited · Final report · Jan 6, 2025 · N4644Y · Substantial damage
  > The pilot's failure to maintain directional control during takeoff, which resulted in an impact with deep snow and vegetation.
- [NTSB WPR25LA047](https://openairdocs.org/ntsb/WPR25LA047.md): Cessna A185F · Lewistown, MT · Accident · No injuries · Class 4 · Limited · Final report · Nov 23, 2024 · N9533H · Substantial damage
  > The pilot’s inadvertent impact with a rock during a landing on a grass strip.
- [NTSB WPR25LA043](https://openairdocs.org/ntsb/WPR25LA043.md): Charlie Guinn CCK-1865 · Lewiston, MT · Accident · No injuries · Class 4 · Limited · Final report · Nov 14, 2024 · N247CC · Substantial damage
  > The pilot’s failure to maintain directional control in a gusting tailwind, which resulted in an impact with a tree.
- [NTSB WPR24LA307](https://openairdocs.org/ntsb/WPR24LA307.md): Robinson Helicopter R44 II · Basin, MT · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 15, 2024 · N233WT · Substantial damage
  > The pilot’s decision to continue performing a high-performance takeoff in a full throttle and low-rotor-rpm condition, which resulted in a loss of control and subsequent impact with terrain.
- [NTSB WPR24LA271](https://openairdocs.org/ntsb/WPR24LA271.md): Piper PA-18-150 · Manhattan, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 11, 2024 · N8576Y · Substantial damage
  > A total loss of engine power due to carburetor icing.
- [NTSB WPR24FA270](https://openairdocs.org/ntsb/WPR24FA270.md): Cessna 182K · Augusta, MT · Accident · 3 fatal · Class 3 · Field · Final report · Aug 8, 2024 · N2764Q · Substantial damage
  > The non-instrument-rated pilot’s decision to continue a visual flight rules flight into a rugged mountain area in deteriorating weather conditions, which resulted in impact with terrain.
- [NTSB WPR24FA238](https://openairdocs.org/ntsb/WPR24FA238.md): Air Tractor AT-802A · Helena, MT · Accident · 1 fatal · Class 3 · Field · Final report · Jul 10, 2024 · N10122 · Substantial damage
  > The pilot’s loss of situational awareness during the water scoop due to task overload while operating in a multi-airplane tactical firefighting environment, which resulted in the pilot’s failure to maintain directional control and the airplane’s collision…
- [NTSB WPR24LA204](https://openairdocs.org/ntsb/WPR24LA204.md): Maule MXT-7-180 · Winifred, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 23, 2024 · N5519C · Substantial damage
  > The pilot’s inadvertent excessive application of brakes, which resulted in a nose over.
- [NTSB WPR24LA180](https://openairdocs.org/ntsb/WPR24LA180.md): Republic RC-3 · Butte, MT · Accident · No injuries · Class 4 · Limited · Final report · Jun 5, 2024 · N87583 · Substantial damage
  > The pilot’s failure to maintain control of the airplane during the takeoff with a gusty left quartering crosswind.
- [NTSB WPR24LA192](https://openairdocs.org/ntsb/WPR24LA192.md): SIAI Marchetti SM. 1019 · Twin Bridges, MT · Accident · No injuries · Class 4 · Limited · Final report · May 19, 2024 · N992BB · Substantial damage
  > The binding of the parking brake cable, which resulted in un-commanded brake application during the landing roll and subsequent nose over.
- [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 WPR24LA152](https://openairdocs.org/ntsb/WPR24LA152.md): Cessna 182H · Three Forks, MT · Accident · No injuries · Class 4 · Limited · Final report · May 10, 2024 · N2388X · Substantial damage
  > The pilot’s inadequate preflight inspection, which resulted in an attempted departure with the flight control lock device installed, and subsequent nose landing gear collapse.
- [NTSB WPR24LA140](https://openairdocs.org/ntsb/WPR24LA140.md): Michael Milburn Vans RV8 · Cascade, MT · Accident · No injuries · Class 4 · Limited · Final report · May 4, 2024 · N740MT · Substantial damage
  > The pilot’s failure to maintain aircraft control during landing roll.
- [NTSB WPR24FA132](https://openairdocs.org/ntsb/WPR24FA132.md): Bell 206-L4 · Anaconda, MT · Accident · 1 fatal · Class 3 · Field · Final report · Apr 26, 2024 · N988B · Destroyed
  > A total loss of engine power due to a loss of cooling oil to the turbine-to-compressor coupling shaft and subsequent fracture of the shaft at an altitude too low for the pilot to complete a successful autorotation. Contributing to the accident was carbon…
- [NTSB WPR24LA109](https://openairdocs.org/ntsb/WPR24LA109.md): Raytheon B200 · Billings, MT · Accident · No injuries · Class 3 · Limited · Final report · Mar 12, 2024 · N299AV · Substantial damage
  > The pilot's improper engine start, resulting in the engine starters remaining engaged and the generators not being activated, which led to the discharge of the airplane’s battery and subsequent total electrical failure after takeoff. Contributing to the…
- [NTSB ENG24LA012](https://openairdocs.org/ntsb/ENG24LA012.md): British Aerospace BAE 146 Series 200A · Missoula, MT · Incident · Class 3 · Limited · Final report · Mar 1, 2024 · N474NA · 2 aircraft · Minor damage
  > The use of a new long term fire retardant with a chemical composition incompatible with the retardant previously in use for the integration-operational field evaluation without adequate testing and qualification.
- [NTSB WPR24LA090](https://openairdocs.org/ntsb/WPR24LA090.md): Enstrom 280FX · Lewistown, MT · Accident · No injuries · Class 4 · Limited · Final report · Feb 15, 2024 · N899JS · Substantial damage
  > The pilot’s failure to maintain clearance from terrain. Contributing to the accident was the pilot’s encounter with low light conditions and snow-covered terrain.
- [NTSB WPR24LA071](https://openairdocs.org/ntsb/WPR24LA071.md): Learjet 55 · Livingston, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Jan 11, 2024 · N558RA · Substantial damage
  > The flight crew’s decision to land on a snow-covered runway with a tailwind, resulting in a runway excursion and subsequent impact with terrain. Contributing to the accident, was the failure of the airport authority to plow the runway.
- [NTSB WPR24LA069](https://openairdocs.org/ntsb/WPR24LA069.md): Taylorcraft BC12-D · Whitefish, MT · Accident · No injuries · Class 4 · Limited · Final report · Dec 23, 2023 · N43415 · Substantial damage
  > The failure of the airport authorities to renew the airport closure NOTAM for the airport. Contributing to the accident, was the pilot’s inability to see the runway closure sign.
- [NTSB WPR24LA048](https://openairdocs.org/ntsb/WPR24LA048.md): Flight Design Ctls · Hungry Horse, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 18, 2023 · N924RD · Substantial damage
  > The pilot's inadequate fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB WPR23LA331](https://openairdocs.org/ntsb/WPR23LA331.md): Beech N35 · Ennis, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 31, 2023 · N92NJ · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB WPR23LA311](https://openairdocs.org/ntsb/WPR23LA311.md): Piper J3C-65 · Miles City, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 11, 2023 · N3609K · Substantial damage
  > The pilot's failure to maintain control of the airplane while landing on unimproved terrain.
- [NTSB WPR23LA307](https://openairdocs.org/ntsb/WPR23LA307.md): Boeing A75N1(PT17) · Red Lodge, MT · Accident · No injuries · Class 3 · Limited · Final report · Aug 8, 2023 · N56907 · Substantial damage
  > A partial loss of engine power during the initial climb out due to improper maintenance of the magneto.
- [NTSB WPR23FA286](https://openairdocs.org/ntsb/WPR23FA286.md): Risen 915 iS · Glendive, MT · Accident · 1 fatal · Class 3 · Field · Final report · Jul 28, 2023 · N2442 · Destroyed
  > The pilot’s failure to maintain airspeed, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall/spin.
- [NTSB WPR23LA284](https://openairdocs.org/ntsb/WPR23LA284.md): Boeing A75N1 · Red Lodge, MT · Accident · No injuries · Class 4 · Limited · Final report · Jul 22, 2023 · N53132 · Substantial damage
  > The pilot’s loss of directional control during landing with wind gusts, which resulted in a ground loop and collision with a fence.
- [NTSB WPR23LA280](https://openairdocs.org/ntsb/WPR23LA280.md): Piper PA-12S · Kalispell, MT · Accident · No injuries · Class 4 · Limited · Final report · Jul 21, 2023 · N48MR · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during landing with a crosswind.
- [NTSB WPR23LA281](https://openairdocs.org/ntsb/WPR23LA281.md): Six Chuter SR7 · Hamilton, MT · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 19, 2023 · N942WA · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff and subsequent impact with a tree.
- [NTSB WPR23LA266](https://openairdocs.org/ntsb/WPR23LA266.md): Piper PA-12 · Judith Gap, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 8, 2023 · N4135M · Substantial damage
  > The pilot's decision to take off on a soft field that exceeded the performance capabilities of the airplane, which resulted in an impact with a pole and terrain.
- [NTSB WPR23LA254](https://openairdocs.org/ntsb/WPR23LA254.md): Maule MX7-180C · Belgrade, MT · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 4, 2023 · N3171H · Substantial damage
  > The pilot’s failure to maintain directional control during landing with a quartering tailwind, which resulted in a runway excursion and nose over.
- [NTSB WPR23FA244](https://openairdocs.org/ntsb/WPR23FA244.md): Curtiss Wright P-40E · Hamilton, MT · Accident · 1 fatal · Class 3 · Field · Final report · Jun 27, 2023 · N4420K · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR23LA269](https://openairdocs.org/ntsb/WPR23LA269.md): CSP Leasing MTO Sport · Gardiner, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2023 · N207AG · Substantial damage
  > Failure of the rudder/nosewheel steering system for reasons that could not be determined, which resulted in loss of yaw control and a subsequent rollover.
- [NTSB WPR23LA175](https://openairdocs.org/ntsb/WPR23LA175.md): Cessna P337H · Laurel, MT · Accident · Minor injuries · Class 3 · Limited · Final report · May 3, 2023 · N62PC · Substantial damage
  > A partial loss of engine power to the rear engine resulting from cylinder detonation for undetermined reasons, which resulted in a forced landing and impact with terrain.
- [NTSB WPR23LA354](https://openairdocs.org/ntsb/WPR23LA354.md): Kerr John Hatz Classic · Ennis, MT · Accident · No injuries · Class 4 · Limited · Final report · Apr 29, 2023 · N687HZ · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll which resulted in a ground-loop.
- [NTSB WPR23LA087](https://openairdocs.org/ntsb/WPR23LA087.md): Raytheon BE-200 · Poplar, MT · Accident · No injuries · Class 4 · Limited · Final report · Jan 18, 2023 · N200EJ · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and descent rate during the landing approach, which resulted in an impact with terrain short of the runway threshold.
- [NTSB WPR23LA065](https://openairdocs.org/ntsb/WPR23LA065.md): Piper PA42 · Lewistown, MT · Accident · No injuries · Class 4 · Limited · Final report · Dec 13, 2022 · C-GZPU · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing. Contributing to the accident was the out of service visual glideslope indicator and snow obscuring the runway markings.

Next page: https://openairdocs.org/ntsb.md?status=final&state=MT&page=2

## 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."completionStatus" = 'Completed'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=MT&status=final

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