NTSB investigations, MT
180,611 investigations by the National Transportation Safety Board since 1962: 174,590 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 SEA04LA044Accident · No injuriesLimited investigationFinal reportPiper PA-20 · Laurel, MTThe student pilot's failure to maintain aircraft control during the landing roll. Inadequate remedial action was a factor.NTSB SEA04FA032Accident · 4 fatalField investigationFinal reportCessna 182G · Glasgow, MTLoss of aircraft control resulting in an in-flight collision with terrain. Factors include marginal weather and dark night conditions.NTSB SEA04LA029Accident · Minor injuriesLimited investigationFinal reportBeech 58P · Missoula, MTThe second pilot's failure to maintain terrain clearance while maneuvering after takeoff. Proper climb rate not verified by the flight crew, fog, freezing fog, dark night conditions and inadequate supervision by the pilot-in-command were factors.NTSB SEA04LA004Accident · No injuriesLimited investigationFinal reportSeabase Magnum · Olney, MTThe pilot's failure to adequately preflight the aircraft to verify the fuel quantity, resulting in fuel exhaustion and the loss of engine power during cruise flight. Contributing factors were the pilot's failure to refuel the aircraft and the soft terrain.NTSB SEA04FA003Accident · 2 fatalField investigationFinal reportCessna 177B · Chinook, MTThe total loss of engine power in cruise flight due to the separation of the carburetor from its mounting bolts, and the pilot's failure to adequately compensate for strong crosswinds while attempting the subsequent forced landing. Additional factors include…NTSB SEA03LA188Accident · No injuriesLimited investigationFinal reportPiper PA-22-160 · Billings, MTThe pilot's inadequate compensation for wind conditions which led to a loss of control and subsequent ground loop. A contributing factor was the wind gust.NTSB SEA03LA185Accident · 1 fatalLimited investigationFinal reportAeronca 65-CA · Polson, MTThe pilot's failure to maintain clearance from an object while maneuvering and alcohol impairment. Transmission wires, dark night conditions, and drug impairment were factors.NTSB SEA03LA172Accident · No injuriesLimited investigationFinal reportCessna 152 · Hamilton, MTThe student pilot's improper flare which resulted in a hard landing. A factor was the improper recovery from the bounced landing.NTSB SEA03LA166Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Rapids, MTThe failure of the landing gear tire valve stem and the pilot's failure to maintain directional control during the landing roll. The deflation of the tire and rough/uneven terrain were factors.NTSB SEA03CA155Accident · Minor injuriesData collectionFinal reportCessna 170B · Schafer, MTThe pilot's delayed remedial action during the takeoff roll. Factors include wet terrain, a fence and an embankment located at the end of the runway.NTSB SEA03LA140Accident · Serious injuriesLimited investigationFinal reportPiper PA-18A · Zurich, MTThe pilot's failure to maintain airspeed which resulted in an inadvertent stall.NTSB SEA03LA130Accident · No injuriesLimited investigationFinal reportCessna T210M · Essex, MTThe unexpected transit of a deer across the runway which impacted the aircraft during the pilot's aborted landing.NTSB SEA03TA116Accident · Minor injuriesFinal reportMcDonnell Douglas 369E · Big Timber, MTFretting on the outside diameter of the compressor coupling adapter which resulted in fatigue and subsequent fracture of the adapter, and ultimately the disconnection of the compressor from the turbine assembly. Contributing factors were low rotor RPM, uneven…NTSB SEA03LA111Accident · No injuriesLimited investigationFinal reportPiper PA-11 · Alzada, MTThe student pilot's failure to maintain adequate flying airspeed in a turn while maneuvering close to the ground resulting in a stall condition. A contributing factor was the turbulent wind conditions.NTSB SEA03LA105Accident · No injuriesLimited investigationFinal reportCessna T337G · Lewistown, MTInadequate preflight planning/preparation prior to takeoff, and the pilot's failure to maintain aircraft control during the takeoff. An inadvertent stall and rough terrain were factors.NTSB SEA03CA102Accident · No injuriesData collectionFinal reportPiper PA-18 · Silver City, MTProper descent rate not maintained while on final approach. A wind gust is a factor in the accident.NTSB SEA03LA099Accident · No injuriesLimited investigationFinal reportPiper PA-18A-150 · Laurel, MTAircraft control was not maintained during the landing roll. The aircraft subsequently nosed over.NTSB SEA03LA097Accident · No injuriesLimited investigationFinal reportCessna 172H · Glasgow, MTA loss of engine power due to carburetor icing. Contributing factors were carburetor icing conditions and the muddy, wet terrain at the landing site.NTSB SEA03LA091Accident · No injuriesLimited investigationFinal reportCessna 150 · Dillon, MTThe pilot's failure to maintain directional control during the takeoff roll, and his inadequate remedial actions during his attempt to realign the aircraft with the runway. Factors include a crosswind, and the pilot's lack of experience in tailwheel-equipped…NTSB SEA03LA087Accident · No injuriesLimited investigationFinal reportCessna 210N · Lewistown, MTThe loss of engine power for undetermined reasons. The condition of the runway overrun was a factor.NTSB SEA03LA068Accident · No injuriesLimited investigationFinal reportPiper PA-18-135 · Marion, MTThe pilot-in-command's failure to maintain directional control during the takeoff roll resulting in the aircraft leaving the runway, crossing a ditch and collapsing the landing gear. A contributing factor was the ditch.NTSB SEA03LA065Accident · No injuriesLimited investigationFinal reportPiper PA-38 · Trident, MTFuel exhaustion while in cruise flight due to inadequate preflight planning / preparation. A fence was a factor.NTSB SEA03TA060Accident · No injuriesFinal reportMcDonnell Douglas 369E · Plentywood, MTAircraft control was not maintained during a hovering turn. High wind conditions and excessive remedial action were factors.NTSB SEA03LA057Accident · No injuriesLimited investigationFinal reportCessna 152 · Butte, MTThe pilot's inadequate compensation for gusty variable wind conditions and his improper flare. Factors include gusty and variable winds .NTSB SEA03LA040Accident · 1 fatalLimited investigationFinal reportPiper PA-22-150 · Garryowen, MTThe pilot in command's allowing the aircraft to inadvertently enter into a stall condition at low altitude while maneuvering. A contributing factor was the pilot's intentional low altitude maneuvering.NTSB SEA03LA007Accident · 1 fatalLimited investigationFinal reportRiddell IV-P · Bozeman, MTThe loss of power for undetermined reason(s) and the pilot's failure to maintain the aircraft's flying speed above the power off stall speed in the landing configuration.NTSB SEA03LA004Accident · Minor injuriesLimited investigationFinal reportBellanca 7GCBC · Helena, MTThe student pilot's failure to maintain clearance from a tower during an aborted landing. Factors include landing with a tailwind and a tower.NTSB SEA02LA182Accident · No injuriesLimited investigationFinal reportCessna 172RG · Billings, MTThe failure of the landing gear actuator during landing as a result of fatigue.NTSB SEA02LA169Accident · No injuriesLimited investigationFinal reportCessna 172 · W. Yellowstone, MTThe pilot's compensation for the wind conditions was inadequate during the landing roll. A quartering tailwind was a factor.NTSB SEA02LA165Accident · No injuriesLimited investigationFinal reportBellanca 7GCBC · Melstone, MTThe pilot's improper decision to continue a takeoff once it had become apparent that it was questionable whether the aircraft would clear an obstacle at the departure end of the takeoff area. Factors include the pilot's failure to perform pre-takeoff…NTSB SEA02TA164Accident · No injuriesFinal reportBell 206L-1 · Wisdom, MTThe pilot's failure to maintain clearance from an object while maneuvering. A tree(s) was a factor.NTSB SEA02LA158Accident · No injuriesLimited investigationFinal reportCessna 120 · Missoula, MTThe pilot's failure to adequately compensate for the wind conditions during the landing roll. Delayed remedial action and a high crosswind condition were factors.NTSB SEA02LA140Accident · Minor injuriesLimited investigationFinal reportBlanik L-13 · Belgrade, MTThe glider pilot's improper in-flight planning decision and his failure to attain the proper touchdown point. Contributing to the accident were the inadvertent activation of the speed brakes, the pilot's failure to maintain altitude, the high vegetation and…NTSB SEA02LA138Accident · No injuriesLimited investigationFinal reportCessna T188C · Choteau, MTFuel exhaustion as a result of the pilot's inattention to fuel consumption (flight duration) which resulted in a total loss of power and subsequent hard landing.NTSB SEA02LA130Accident · No injuriesLimited investigationFinal reportThurmond Moni · Laurel, MTUndertorqued mounting bolts which resulted in fatigue to the wooden propeller blade and subsequent in flight separation of one of the blades while in cruise flight. An improper installation of the propeller assembly and soft terrain encountered during the…NTSB SEA02LA128Accident · Minor injuriesLimited investigationFinal reportTaylorcraft F19 · Heron, MTThe pilot's failure to maintain vertical clearance from trees. Factors include tall trees just off the approach end of the runway.NTSB SEA02LA118Accident · No injuriesLimited investigationFinal reportCessna 182 E · Sweetgrass, MTThe pilot's failure to adequately compensate for wind conditions after encountering a crosswind gust during the landing roll. Factors include gusty crosswinds, and a fence in the vicinity of the runway.NTSB SEA02LA162Accident · Serious injuriesLimited investigationFinal reportInfinity Powered Parachute · Lewistown, MTInadequate preflight planning and inadvertent flight into adverse weather conditions. High wind conditions was a factor in the accident.NTSB SEA02LA111Accident · Minor injuriesLimited investigationFinal reportRockwell S-2R Thrush · Winifred, MTThe pilot's improper inflight decision to continue his aerial application flight after he realized the aircraft might be low on fuel. Factors include the pilot's failure to maintain clearance from a shed.NTSB SEA02LA104Accident · No injuriesLimited investigationFinal reportCessna 180K · Helena, MTBinding brakes for undetermined reasons and the pilot's failure to maintain directional control during an aborted takeoff.NTSB SEA02FA091Accident · Minor injuriesField investigationFinal reportSikorsky CH-19E · Plains, MTPower loss for undetermined reasons.NTSB SEA02LA075Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Hot Springs, MTThe pilot's failure to adequately compensate for unfavorable wind conditions. Factors include unfavorable/shifting winds, and a tailwind gust.NTSB SEA02LA074Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Helena, MTFracture of the left main wheel assembly during the takeoff roll. Factors include the use of a wheel assembly not approved for the accident airplane, and the use of an oversized tire.NTSB SEA02FA064Accident · No injuriesField investigationFinal reportCessna 182E · Red Lodge, MTLong term fatigue of the nose landing gear strut fork initiated by side loading which resulted in the separation of the fork from the strut and the consequent collapse of the nose gear. A contributing factor was the ditch the aircraft traversed during the…NTSB SEA02FA063Accident · 2 fatalField investigationFinal reportPiper PA-18-150 · Silesia, MTThe non-certificated pilot's inadvertent entry into a stall condition at low altitude.NTSB SEA02LA058Accident · Serious injuriesLimited investigationFinal reportPiper PA-18-150 · Fort Peck, MTThe pilot's inability to maintain aircraft control and foreign object damage to the aileron and wing. The restricted movement of the flight controls was a factor.NTSB SEA02FA035Accident · Serious injuriesField investigationFinal reportRobinson R-22 Beta · Silver City, MTBoth the pilot/owner and the FAA inspector pilots' failure to maintain adequate rotor RPM during a practice auto rotation landing which resulted in a hard landing. A contributing factor was the pilot/owner's application of excessive anti-torque pedal during…NTSB SEA02LA031Accident · Minor injuriesLimited investigationFinal reportMooney M20E · Glasgow, MTThe pilot's failure to maintain adequate flying airspeed resulting in a stall/mush condition and loss of control at low altitude. A contributing factor was the pilot's distraction from flying the aircraft while attempting to retract the landing gear.NTSB SEA02LA025Accident · No injuriesLimited investigationFinal reportCessna 210L · Great Falls, MTThe pilot's intentional continuation of a visual flight rules (VFR) flight into instrument meteorological conditions (IMC), and his failure to maintain clearance from the terrain. Factors include low ceilings, snow, mountainous/hilly terrain, and trees.NTSB SEA02TA022Accident · No injuriesFinal reportHughes 369D · Butte, MTLoss of engine power for undetermined reasons.