NTSB investigations, MT
89 cases where the sequence of events included Loss of control on ground.
Cases per year
| 2008 | 10 |
|---|---|
| 2009 | 4 |
| 2010 | 5 |
| 2011 | 4 |
| 2012 | 6 |
| 2013 | 7 |
| 2014 | 6 |
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 5 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\" = '230' 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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" = '230' 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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR27LA017Accident · No injuriesClass 4 · LimitedInvestigation openCessna 180H · Lewistown, MTNTSB WPR26LA348Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-18-150 · Roundup, MTNTSB WPR26LA295Accident · No injuriesClass 3 · LimitedPreliminary reportVans RV8 · Great Falls, MTOn August 5, 2026, at about 1034 mountain daylight time, a Van’s Aircraft RV-8, C-GFWR, was substantially damaged when it was involved in an accident near Great Falls, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR26LA157Accident · No injuriesClass 3 · LimitedPreliminary reportCessna T182 · Marion, MTOn April 8, 2026, about 1315 mountain standard time, a Cessna T182, N5475N, was substantially damaged when it was involved in an accident near Marion, Montana. Both pilots were uninjured. The airplane was operated as a Title 14 Code of Federal Regulations…NTSB WPR26LA105Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-20 · Three Forks, MTThe pilot’s failure to maintain directional during the landing roll with a variable wind.NTSB WPR25LA151Accident · No injuriesClass 4 · LimitedFinal reportStinson 108-3 · Port of Del Bonita, MTThe pilot’s loss of directional control while landing in gusting wind conditions.NTSB WPR25LA043Accident · No injuriesClass 4 · LimitedFinal reportCharlie Guinn CCK-1865 · Lewiston, MTThe pilot’s failure to maintain directional control in a gusting tailwind, which resulted in an impact with a tree.NTSB WPR23LA284Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1 · Red Lodge, MTThe pilot’s loss of directional control during landing with wind gusts, which resulted in a ground loop and collision with a fence.NTSB WPR23LA280Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12S · Kalispell, MTThe pilot's failure to maintain directional control of the airplane during landing with a crosswind.NTSB WPR23LA269Accident · Minor injuriesClass 3 · LimitedFinal reportCSP Leasing MTO Sport · Gardiner, MTFailure 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 WPR23LA354Accident · No injuriesClass 4 · LimitedFinal reportKerr John Hatz Classic · Ennis, MTThe pilot’s failure to maintain directional control during the landing roll which resulted in a ground-loop.NTSB WPR23LA020Accident · No injuriesClass 4 · LimitedFinal reportCub Crafters FX-3 · Hot Springs, MTThe pilot’s failure to maintain directional control during the landing roll.NTSB WPR22LA270Accident · No injuriesClass 4 · LimitedFinal reportSchweizer SGS 2-33 · Livingston, MTThe student pilot’s improper landing flare, and the instructor’s lack of remedial action.NTSB WPR22LA056Accident · No injuriesClass 4 · LimitedFinal reportMonte Clark Vans RV8 · Hamilton, MTThe pilot’s failure to maintain directional control while landing with a crosswind.NTSB WPR21LA289Accident · Minor injuriesClass 4 · LimitedFinal reportStinson 108-1 · Bozeman, MTThe pilot’s failure to maintain directional control during landing which resulted in a ground loop.NTSB WPR21LA226Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Miles City, MTThe pilot’s failure to maintain directional control during takeoff which resulted in a ground loop and collision with terrain.NTSB WPR21LA163Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Wilsall, MTThe pilot's failure to maintain directional control during the landing roll with a crosswind.NTSB WPR21LA137Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Three Forks, MTThe pilot’s improper landing flare, which resulted in a loss of directional control, runway excursion and impact with terrain.NTSB WPR20CA214Accident · No injuriesClass 4 · Data collectionFinal reportPiper PA 18A-135 · Marion, MTThe pilot's failure to maintain directional control of the airplane while landing in gusting wind conditions, which resulted in a runway excursion and collision with a fence.NTSB WPR20CA124Accident · No injuriesData collectionFinal reportCessna 180 · Marion, MTThe pilot's loss of directional control and subsequent improper brake application during the landing roll in gusting wind conditions, which resulted in a nose-over.NTSB WPR20CA053Accident · No injuriesData collectionFinal reportCessna 170 · Missoula, MTThe pilot receiving instruction's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop, and the flight instructor’s failure to adequately monitor the pilot.NTSB GAA20CA070Accident · No injuriesData collectionFinal reportCessna 195 · Kalispell, MTThe pilot's failure to maintain directional control during landing, which resulted in a runway excursion and the left main landing gear collapsing.NTSB GAA19CA408Accident · Minor injuriesData collectionFinal reportPiper PA 20 · Hamilton, MTThe pilot's loss of directional control due to his unintentional use of brakes instead of the rudder during the landing roll, which resulted in a nose-over.NTSB GAA19CA261Accident · No injuriesData collectionFinal reportSiai-Marchetti SM · Belgrade, MTThe pilot receiving instruction's overapplication of rudder during the landing roll and his subsequent failure to maintain directional control, which resulted in a ground loop.NTSB WPR19LA134Accident · No injuriesClass 3 · LimitedFinal reportCessna A185 · Kalispell, MTThe loss of directional control during landing for reasons that could not be determined based on available evidence.NTSB WPR19CA069Accident · No injuriesData collectionFinal reportChampion 7GCBC · Townsend, MTThe pilot's failure to maintain airplane control during a precautionary landing on an uneven, soft surface.NTSB GAA18CA481Accident · No injuriesData collectionFinal reportHelio H 295 · Great Falls, MTThe pilot’s failure to maintain lateral control of the airplane during takeoff in a quartering tailwind.NTSB GAA18CA437Accident · No injuriesData collectionFinal reportCessna 180 · Bozeman, MTThe pilot's failure to maintain directional control during landing.NTSB GAA18CA404Accident · No injuriesData collectionFinal reportCessna 180 · Cut Bank, MTThe pilot's failure to maintain directional control during the landing roll.NTSB GAA18CA372Accident · Minor injuriesData collectionFinal reportBeech D17 · Hamilton, MTThe pilot’s failure to maintain directional control during the landing roll and his subsequent inability to recover due to his foot being stuck.NTSB GAA17CA572Accident · No injuriesData collectionFinal reportCub Crafters CC19-180 · Kalispell, MTThe pilot’s inadvertent brake application during the landing roll, which resulted in a loss of directional control.NTSB GAA17CA212Accident · No injuriesData collectionFinal reportThomas Craig E Wittman W-10 · Stevensville, MTThe pilot’s decision to take off with a known master brake cylinder leak and his subsequent failure to maintain directional control during landing.NTSB WPR17LA080Accident · No injuriesLimited investigationFinal reportMaxcy Christopher L Stol King · Bozeman, MTThe pilot's failure to maintain directional control during landing.NTSB GAA16CA419Accident · No injuriesData collectionFinal reportCessna 172 · Lewiston, MTThe pilot's failure to ensure that his seat was adjusted and locked, which resulted in his seat sliding aft during the takeoff roll, and the subsequent loss of directional control and runway excursion.NTSB GAA16CA376Accident · No injuriesData collectionFinal reportCessna 182 · Stevensville, MTThe pilot's failure to maintain adequate clearance from ground equipment during takeoff, which resulted in an impact with irrigation pipes, a loss of directional control, an impact with a fence, and a nose over.NTSB GAA16CA369Accident · No injuriesData collectionFinal reportStinson 108 · Red Lodge, MTA deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop.NTSB WPR16LA171Accident · No injuriesClass 3 · LimitedFinal reportCessna 310R · Schafer Meadows, MTA loss of directional control while landing, which resulted in a runway excursion and landing gear collapse for reasons that could not be determined.NTSB GAA16CA319Accident · No injuriesData collectionFinal reportAmerican AA 1 · Denton, MTThe pilot's premature rotation and failure to attain sufficient airspeed required for a sustained climb, resulting in a runway overrun and collision with a fence.NTSB GAA16CA285Accident · No injuriesData collectionFinal reportMaule M5 · Hamilton, MTThe pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a nose over.NTSB GAA16CA284Accident · No injuriesData collectionFinal reportBellanca 7GCBC · Ferndale, MTThe 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 GAA16CA097Accident · No injuriesData collectionFinal reportCessna 175 · Seeley Lake, MTThe pilot' failure to identify the plowed runway width in dusk and flat light conditions, which resulted in a touchdown left of the runway center, an impact with a snow berm, and a ground loop.NTSB GAA16CA023Accident · Serious injuriesData collectionFinal reportCessna 140 · Fort Benton, MTA hard landing which resulted in a loss of directional control, main landing gear collapse, and damage to the left wing spar.NTSB GAA15CA235Accident · No injuriesData collectionFinal reportCessna 172N · Kalispell, MTThe pilot's loss of directional control, which resulted in a runway excursion, and collision with runway and taxiway lights and terrain.NTSB WPR15LA246Accident · No injuriesLimited investigationFinal reportTaylorcraft BC12 D · Libby, MTThe pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion.NTSB WPR15LA198Accident · Serious injuriesLimited investigationFinal reportCessna TU206F · Schafers Meadows, MTThe pilot's failure to maintain directional control of the airplane during the landing roll in variable and gusting wind conditions.NTSB WPR15CA173Accident · No injuriesData collectionFinal reportCessna T188C · Ismay, MTThe pilot's incorrect action to continue the takeoff when he failed to maintain directional control during the takeoff roll.NTSB GAA15CA050Accident · No injuriesData collectionFinal reportPiper PA 28-180 · Deer Lodge, MTThe pilot's inadequate recovery from a bounced landing, resulting in a loss of control and collision with terrain.NTSB WPR15CA012Accident · No injuriesData collectionFinal reportCessna 180 · Marion, MTThe pilot's failure to maintain directional control during landing.NTSB WPR14CA384Accident · Minor injuriesData collectionFinal reportBellanca 7GCBC · Meadow Creek, MTThe pilot's inadequate landing flare and failure to maintain aircraft control during landing.NTSB WPR14CA277Accident · No injuriesData collectionFinal reportJones Hatz CB1 · Hysham, MTThe pilot's failure to maintain directional control during the landing roll with a crosswind, which resulted in a ground loop.