NTSB investigations, MT
180,610 investigations by the National Transportation Safety Board since 1962: 174,589 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, newest first
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 WPR21LA219Accident · Serious injuriesClass 3 · LimitedFinal reportStoddard Hamilton Glasair II · Darby, MTThe pilot’s impact with terrain during a go-around following an attempted precautionary landing due to a low oil pressure indication. The reason for the low oil pressure indication could not be determined based on the available information.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 WPR21LA138Accident · No injuriesClass 4 · LimitedFinal reportBurg Frederick S ZEN CH701 · Shepherd, MTThe pilot’s unstable approach, and improper landing flare, which resulted in a bounced landing and subsequent nose over.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 WPR21LA096Accident · No injuriesClass 4 · LimitedFinal reportHeckel Super Sportsman · Spotted Bear, MTThe pilot’s failure to maintain aircraft control during the landing roll on an unimproved snow-covered runway which resulted in a nose-over.NTSB WPR21LA067Accident · Serious injuriesClass 4 · LimitedFinal reportCessna 172 · Dillon, MTThe student pilot’s exceedance of the airplane’s critical angle attack during an attempted go-around, which resulted in an aerodynamic stall.NTSB WPR21LA032Accident · 1 fatalClass 3 · LimitedFinal reportCessna 172 · Billings, MTThe pilot’s failure to maintain the proper descent glide path while on final approach for reasons that could not be determined from available evidence.NTSB WPR20LA304Accident · 2 fatalClass 3 · LimitedFinal reportCessna 172 · Seeley Lake, MTThe noninstrument-rated pilot’s encounter with instrument meteorological conditions during a night visual approach due to wildfire smoke, which resulted in controlled flight into terrain.NTSB WPR20LA308Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA 30 · Billings, MTThe pilot’s improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.NTSB WPR20LA278Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · Harlowton, MTThe pilot’s failure to follow the appropriate takeoff procedures, which resulted in a collision with terrain.NTSB WPR20CA250Accident · No injuriesClass 4 · Data collectionFinal reportCessna A185 · Kalispell, MTThe pilot's excessive speed while landing on a wet grass runway, which resulted in a runway excursion and impact with a fence.NTSB WPR20LA245Accident · 1 fatalClass 3 · LimitedFinal reportCessna 337 · Ennis, MTThe 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 WPR20LA235Accident · No injuriesClass 3 · LimitedFinal reportMcdonnell Douglas 600 · Thompson Falls, MTA partial loss of engine power for reasons that could not be determined based on available evidence.NTSB WPR20CA217Accident · No injuriesClass 4 · Data collectionFinal reportCessna 182 · Absarokee, MTThe pilot's failure to maintain airplane control during a go-around that resulted in the airplane exceeding its critical angle of attack and aerodynamically stalling which resulted in a collision with the ground.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 WPR20CA183Accident · No injuriesClass 4 · Data collectionFinal reportCessna 310 · Butte, MTThe pilot's failure to maintain clearance from a fence post during final approach which resulted in a damage to the left main landing gear, and its subsequent collapse during landing.NTSB WPR20CA166Accident · No injuriesClass 4 · Data collectionFinal reportAviat A 1 · Glendive, MTThe pilot's failure to maintain airplane control during landing in gusting wind condition which resulted in a collision with terrain.NTSB WPR20CA173Accident · No injuriesClass 4 · Data collectionFinal reportCessna 170 · Butte, MTThe pilot's failure to maintain airplane control during landing in turbulent conditions.NTSB WPR20CA149Accident · No injuriesClass 4 · Data collectionFinal reportCessna 185 · Winifred, MTAn inadequate flare that resulted in a bounced landing and the pilot's subsequent delayed decision to go-around that did not allow for sufficient clearance from trees when the airplane was affected by a gusting wind.NTSB WPR20LA128Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA31T · Billings, MTThe degraded airplane performance after takeoff for reasons that could not be determined from available evidence.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 WPR20LA068Accident · No injuriesClass 3 · LimitedFinal reportCessna 172Q · Big Timber, MTA loss of engine power during climbout for undetermined reasons.NTSB WPR20FA063Accident · 4 fatalClass 3 · FieldFinal reportCessna TR182 · Billings, MTThe pilot’s failure to maintain clearance due to poor decision making in selecting an unsafe altitude during cruise flight.NTSB WPR20CA066Accident · No injuriesData collectionFinal reportPiper PA 23 · Helena, MTThe pilot's improper decision to attempt an off-airport departure from rough terrain without inspecting the takeoff area, which resulted in a collision with a shallow rut during takeoff and the nose landing gear collapsing.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 WPR19FA246Accident · 3 fatalClass 3 · FieldFinal reportBeech 33 · St. Ignatius, MTThe pilot’s decision to maneuver the airplane at a low altitude, which resulted in impact with power lines and terrain.NTSB WPR19FA209Accident · 2 fatalClass 3 · FieldFinal reportCessna 182 · Wolf Point, MTThe pilot's exceedance of the airplane's critical angle of attack while maneuvering to land, which resulted in an accelerated aerodynamic stall and subsequent loss of control.NTSB WPR19LA213Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 150 · Roundup, MTThe pilot ‘s failure to maintain an adequate altitude above the trees while maneuvering to land.NTSB GAA19CA475Accident · Serious injuriesData collectionFinal reportAvid Avid Mark IV · Thompson Falls, MTThe student pilot's failure to go-around after a hard, bounced landing and the flight instructor's delayed remedial action, which resulted in a collision with trees at the departure end of the runway.NTSB GAA19CA432Accident · Minor injuriesData collectionFinal reportAviat A1 · Ennis, MTThe 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 WPR19LA194Accident · Serious injuriesClass 3 · LimitedFinal reportBell 47G 3B 1 · Mosby, MTThe pilot’s failure to account for environmental conditions conducive to a loss of tail rotor effectiveness, which resulted in a loss of tail rotor effectiveness and subsequent loss of control. Contributing to the accident was the pilot’s inappropriate…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 WPR19LA184Accident · Minor injuriesClass 3 · LimitedFinal reportCessna TR182 · Lincoln, MTA loss of control during landing, which resulted in a nose landing gear collapse and runway excursion.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 GAA19CA238Accident · No injuriesData collectionFinal reportAerospatiale AS350 · Sula, MTThe pilot's failure to maintain adequate clearance from ground equipment, which resulted in a tail rotor blade impact.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 WPR19LA055Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 180 · Townsend, MTThe pilot’s failure to maintain clearance from power lines while maneuvering at low level, which resulted in a wire strike and subsequent impact with terrain.NTSB WPR18FA260Accident · 1 fatalField investigationFinal reportRobert L Coons RotorWay RW 1 · Billings, MTThe pilot's failure to maintain clearance with a hangar while maneuvering to his hangar. Contributing to the accident was the pilot's limited experience in helicopters.NTSB GAA18CA533Accident · Minor injuriesData collectionFinal reportTaylorcraft BC12 · Cut Bank, MTThe pilot’s failure to see and avoid power wires while maneuvering at low altitude. Contributing to the accident was the pilot’s inability to determine the airplane’s altitude due to sun glare.NTSB GAA18CA482Accident · No injuriesData collectionFinal reportQac Quickie · helena, MTThe pilot's failure to maintain yaw control and a proper descent rate during an aborted takeoff.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 GAA18CA438Accident · No injuriesData collectionFinal reportMooney M20E · Great Falls, MTThe flight instructor’s incorrect use of the landing gear system and his and the pilot’s failure to ensure that the landing gear was extended, which resulted in a gear-up landing. Contributing to the accident was the flight instructor’s unfamiliarity with the…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 DCA18CA255Accident · Serious injuriesData collectionFinal reportEmbraer ERJ175 · Cut Bank, MTan unexpected encounter with clear air turbulence.NTSB WPR18LA145Accident · Minor injuriesLimited investigationFinal reportSportavia Putzer RF5B Sperber · Lookout Pass, MTThe pilot’s improper decision to continue flight toward rising terrain after the engine overheated, which necessitated a precautionary landing when the motorglider could not maintain altitude in downdrafts.NTSB GAA18CA240Accident · No injuriesData collectionFinal reportBrown Joseph Sportsman GS-2 · Kalispell, MTThe pilot’s selection of an unsuitable snow-covered airstrip for landing, which resulted in a nose-over.