NTSB investigations, MT
180,582 investigations by the National Transportation Safety Board since 1962: 174,566 accidents, the rest incidents and other occurrences. Each has NTSB’s narrative and, once the investigation is done, its probable cause; since 2008, its findings and sequence of events.
Cases per year
| 1963 | 2 |
|---|---|
| 1964 | 78 |
| 1965 | 73 |
| 1966 | 87 |
| 1967 | 82 |
| 1968 | 61 |
| 1969 | 56 |
| 1970 | 67 |
| 1971 | 55 |
| 1972 | 46 |
| 1973 | 49 |
| 1974 | 59 |
| 1975 | 61 |
| 1976 | 60 |
| 1977 | 61 |
| 1978 | 57 |
| 1979 | 50 |
| 1980 | 46 |
| 1981 | 52 |
| 1982 | 57 |
| 1983 | 37 |
| 1984 | 38 |
| 1985 | 42 |
| 1986 | 34 |
| 1987 | 27 |
| 1988 | 31 |
| 1989 | 26 |
| 1990 | 32 |
| 1991 | 28 |
| 1992 | 29 |
| 1993 | 25 |
| 1994 | 29 |
| 1995 | 26 |
| 1996 | 23 |
| 1997 | 29 |
| 1998 | 38 |
| 1999 | 24 |
| 2000 | 28 |
| 2001 | 18 |
| 2002 | 25 |
| 2003 | 23 |
| 2004 | 29 |
| 2005 | 21 |
| 2006 | 33 |
| 2007 | 28 |
| 2008 | 20 |
| 2009 | 16 |
| 2010 | 14 |
| 2011 | 21 |
| 2012 | 17 |
| 2013 | 29 |
| 2014 | 21 |
| 2015 | 20 |
| 2016 | 18 |
| 2017 | 12 |
| 2018 | 14 |
| 2019 | 15 |
| 2020 | 19 |
| 2021 | 18 |
| 2022 | 14 |
| 2023 | 16 |
| 2024 | 18 |
| 2025 | 24 |
| 2026 | 15 |
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' 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' 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 WPR27LA002Accident · No injuriesClass 3 · LimitedInvestigation openCessna P210N · Stevensville, MTNTSB WPR26LA360Accident · No injuriesClass 4 · LimitedInvestigation openCessna A185F · Livingston, MTNTSB WPR26LA348Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-18-150 · Roundup, MTNTSB WPR26LA344Accident · Serious injuriesClass 4 · LimitedInvestigation openTaylorcraft BC12D · Nibbe, MTNTSB WPR26LA335Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 210 · Polson, MTOn September 10, 2026, about 1005 mountain daylight time, a Cessna 210, N9517T, was substantially damaged when it was involved in an accident near Polson Airport (8S1), Polson, Montana. The student pilot was not injured. The airplane was operated as a Title…NTSB 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 WPR26LA280Accident · Minor injuriesClass 4 · LimitedInvestigation openHarmon Rocket II · Glasgow, MTNTSB WPR26LA155Accident · Minor injuriesClass 3 · LimitedPreliminary reportAero Vodochody L-39 · Ennis, MTOn April 10, 2026, about 1210 mountain daylight time, an Aero Vodochody L 39, N136EM, was substantially damaged when it was involved in an accident near Ennis, Montana. The flight instructor sustained minor injuries, and the pilot undergoing instruction was…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 WPR26LA152Accident · No injuriesClass 3 · LimitedPreliminary reportJust Highlander · Great Falls, MTOn April 8, 2026, about 1106 mountain daylight time, an experimental amateur built Just Aircraft Highlander, N563JA, was substantially damaged when it was involved in an accident near Great Falls, Montana. The pilot was not injured. The airplane was operated…NTSB WPR26LA146Accident · No injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Chimney Rock, MTThe 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 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 WPR26LA099Accident · No injuriesClass 4 · LimitedFinal reportBell Helicopter Textron Canada BHT407 · Libby, MTThe pilot's failure to maintain clearance from a light post during landing.NTSB WPR26LA093Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 500 · Great Falls, MTOn January 19, 2026, about 1303 mountain standard time, a Cessna 500 airplane, C-GJVK, was substantially damaged when it was involved in an accident at Great Falls International Airport (GTF), Great Falls, Montana. The pilot and passenger were not injured.…NTSB WPR26LA055Accident · No injuriesClass 4 · LimitedFinal reportMaule M-5-210C · Eureka, MTThe 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 WPR26FA032Accident · 1 fatalClass 3 · FieldPreliminary reportCirrus Design SR22T · Lincoln, MTOn October 24, 2025 at 2115 mountain daylight time, a Cirrus SR22T, N740TS, was destroyed when it was involved in an accident near Lincoln, Montana. The pilot sustained fatal injuries. The airplane was operated as a Title 14 Code of Federal Regulations (CFR)…NTSB WPR26FA031Accident · 4 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R66 · Ekalaka, MTOn October 22, 2025, about 1830 mountain daylight time, a Robinson Helicopter Co. R66, N67GA, was substantially damaged when it was involved in an accident near Ekalaka, Montana. The pilot and 3 passengers were fatally injured. The helicopter was operated as…NTSB WPR26LA020Accident · 3 fatalClass 3 · LimitedPreliminary reportPiper PA-23-250 · Condon, MTOn October 17, 2025, about 1615 mountain daylight time, a Piper PA-23-250, N2345R, was substantially damaged when it was involved in an accident near Condon, Montana. The pilot and two passengers were fatally injured. The airplane was operated as a Title 14…NTSB WPR25LA295Accident · No injuriesClass 3 · LimitedPreliminary reportSiai-Marchetti SF260B · Billings, MTOn September 26, 2025, about 1040 mountain daylight time, a SIAI-MARCHETTI SF 260B, N272C, was substantially damaged when it was involved in an accident near Billings, Montana. The pilot and passenger were not injured. The airplane was operated as a Title 14…NTSB WPR25FA289Accident · 1 fatalClass 3 · FieldPreliminary reportMurphy SR3500 · Bigfork, MTOn September 19, 2025, about 1205 mountain daylight time, an experimental amateur built Murphy SR3500, N62ZT, was destroyed when it was involved in an accident near Bigfork, Montana. The pilot was fatally injured. The airplane was operated as a Title 14 Code…NTSB WPR25LA271Accident · Minor injuriesClass 4 · LimitedFinal reportNaval Aircraft Factory N3N-3 · Red Lodge, MTThe pilot’s failure to maintain clearance from obstacles during an aborted landing. Contributing to the accident was the high density altitude weather condition.NTSB WPR25LA260Accident · No injuriesClass 3 · LimitedPreliminary reportBell Textron Canada 407 · Lincoln, MTOn August 26, 2025, at about 0100 mountain daylight time, a Bell 407 GTX, N38AJ, was substantially damaged when it was involved in an accident near Lincoln, Montana. The pilot and two passengers were not injured. The helicopter was operated as a Title 14,…NTSB WPR25FA252Accident · 1 fatalClass 3 · FieldPreliminary reportVans RV-7A · West Glacier, MTOn August 12, 2025, about 1457 mountain daylight time, an experimental amateur-built Vans RV-7A N30SG, was substantially damaged when it was involved in an accident near West Glacier, Montana. The pilot was fatally injured. The airplane was operated as a…NTSB WPR25LA251Accident · No injuriesClass 4 · LimitedFinal reportSocata TBM 700 · Kalispell, MTThe pilot’s unstable approach to the runway, which resulted in an aerodynamic stall at low altitude and impact with terrain.NTSB WPR25LA243Accident · No injuriesClass 4 · LimitedFinal reportCessna 172N · Ronan, MTThe student pilot's inadequate landing flare and recovery from a bounced landing.NTSB WPR25LA239Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ponderosa Pines, MTThe pilot’s improper pedal application during an approach to a hover.NTSB WPR25FA223Accident · 2 fatalClass 3 · FieldPreliminary reportGrumman American Avn. AA-5 · West Glacier, MTOn July 26, 2025, about 0942 mountain daylight time, a Grumman AA-5, N1342R, was destroyed when it was involved in an accident near West Glacier, Montana. The pilot and passenger were fatally injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR25LA221Accident · Minor injuriesClass 4 · LimitedFinal reportBeech B35 · Helena, MTThe 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 WPR25FA214Accident · 3 fatalClass 3 · FieldPreliminary reportPiper PA-28-180 · West Yellowstone, MTOn July 17, 2025, about 2358 mountain daylight time, a Piper PA-28-180, N7186W, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot and two pilot rated passengers were fatally injured. The airplane was…NTSB WPR25LA200Accident · No injuriesClass 3 · LimitedPreliminary reportFaust 3 · Harrison, MTOn June 30, 2025, about 1200 mountain daylight time, an experimental amateur built Faust 3, N5901V, sustained substantial damage when it was involved in an accident near Harrison, Montana. The pilot and passenger were not injured. The airplane was operated as…NTSB WPR25LA194Accident · No injuriesClass 4 · LimitedFinal reportBellanca 7GCBC · Helena, MTThe pilot’s failure to maintain directional control of the airplane during landing.NTSB WPR25LA301Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-24-260 · West Yellowstone, MTOn June 29, 2025, at 1033 mountain daylight time, a Piper PA-24-260, N9366P, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR25FA182Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 172 · Billings, MTOn 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 WPR25LA176Accident · No injuriesClass 4 · LimitedFinal reportCessna 182M · Willow Creek, MTThe pilot’s inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.NTSB WPR25LA165Accident · No injuriesClass 4 · LimitedFinal reportWeatherly 620B · Lewiston, MTThe pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude.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 WPR25LA122Accident · No injuriesClass 3 · LimitedFinal reportBeech C90A · Helena, MTThe 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 WPR25LA074Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Red Rock, MTThe pilot's failure to maintain directional control during takeoff, which resulted in an impact with deep snow and vegetation.NTSB WPR25LA047Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Lewistown, MTThe pilot’s inadvertent impact with a rock during a landing on a grass strip.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 WPR24LA307Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Basin, MTThe 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 WPR24LA323AccidentClass 3 · LimitedPreliminary reportBeech J35 · Belgrade, MTOn August 27, 2024, about 1845 mountain daylight time, a Beech J35, N8350D, was substantially damaged when it was involved in an accident near Belgrade, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations…NTSB WPR24LA271Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Manhattan, MTA total loss of engine power due to carburetor icing.NTSB WPR24FA270Accident · 3 fatalClass 3 · FieldFinal reportCessna 182K · Augusta, MTThe 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 WPR24FA238Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-802A · Helena, MTThe 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 WPR24LA204Accident · Minor injuriesClass 4 · LimitedFinal reportMaule MXT-7-180 · Winifred, MTThe pilot’s inadvertent excessive application of brakes, which resulted in a nose over.NTSB WPR24LA180Accident · No injuriesClass 4 · LimitedFinal reportRepublic RC-3 · Butte, MTThe pilot’s failure to maintain control of the airplane during the takeoff with a gusty left quartering crosswind.NTSB WPR24LA192Accident · No injuriesClass 4 · LimitedFinal reportSIAI Marchetti SM. 1019 · Twin Bridges, MTThe binding of the parking brake cable, which resulted in un-commanded brake application during the landing roll and subsequent nose over.NTSB WPR24FA150Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-18-150 · Thurlow, MTThe 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…