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 SEA96FA137Accident · 2 fatalField investigationFinal reportPiper PA-28R-180 · Pray, MTthe pilot's delay in initiating a go-around, and his failure to obtain and/or maintain sufficient airspeed to avoid higher terrain during the go-around, which resulted in a stall and collision with terrain. Factors relating to the accident were: the narrow…NTSB SEA96LA118Accident · No injuriesLimited investigationFinal reportCessna 180 · Kalispell, MTfailure of the pilot to maintain directional control, due to inadequate compensation for wind conditions. Factors relating to the accident were: the crosswind and soft/wet terrain near the edge of the runway.NTSB SEA96LA114Accident · Serious injuriesLimited investigationFinal reportCessna T188C · Roundup, MTfailure of the pilot to maintain adequate airspeed, during a turn-around maneuver after a swath run, which resulted in an inadvertent stall.NTSB SEA96IA104Incident · No injuriesIncident investigationFinal reportDornier 328 · Billings, MTpaint overspray on the elevator trim actuator push rods, which damaged the actuator quad rings during normal operation and allowed water to enter the actuators; and the resultant freezing of the actuators. Factors relating to the incident included the…NTSB SEA96LA096Accident · No injuriesLimited investigationFinal reportTilbert Baby Great Lakes · Stevensville, MTthe pilot's inadequate compensation for the wind conditions during the landing roll, which resulted in loss of directional control and an inadvertent ground swerve. Factors relating to the accident were: the adverse wind conditions (crosswind and gusts),…NTSB SEA96LA095Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Cut Bank, MTthe pilot's inadequate compensation for the wind conditions during the landing roll, which resulted in a loss of directional control and an inadvertent ground swerve. Factors relating to the accident were: the unfavorable wind conditions (crosswind and…NTSB SEA96LA086Accident · No injuriesLimited investigationFinal reportCessna 150F · Plains, MTthe pilot's excessive use of brakes during the landing rollout.NTSB SEA96LA058Accident · No injuriesLimited investigationFinal reportBeech 35 · Laurel, MTthe pilot's failure to extend the landing gear. Factors related to the accident were: an inoperative gear warning system, the dark night, and the pilot's failure to follow the checklist.NTSB SEA96LA041Accident · No injuriesLimited investigationFinal reportCessna 172K · Park City, MTInadequate visual lookout by the pilot, and his failure to maintain sufficient altitude/clearance from the transmission line.NTSB SEA96LA038Accident · No injuriesLimited investigationFinal reportBeech B100 · Miles City, MTFailure of airport personnel to properly remove snow from the runway or issue an appropriate notam concerning the runway condition. Factors relating to the accident were: the low light condition at dawn, and the snowbank or berm that was left on the runway.NTSB SEA96FA024Accident · 2 fatalField investigationFinal reportBeech C24R · Bozeman, MTfailure of the pilot to follow the specified approach track (proper IFR procedure), and his associated failure to maintain altitude or clearance from mountainous terrain. Factors relating to the accident were: the pilot's failure to abide by the aircraft…NTSB SEA96LA019Accident · No injuriesLimited investigationFinal reportMaule M-6-235 · Wisdom, MTThe pilot's failure to maintain clearance from the fence post. Factors include sunglare, slush covered terrain, and the pilot's selection of unsuitable terrain for takeoff.NTSB SEA96LA018Accident · No injuriesLimited investigationFinal reportPiper PA-22-160 · Seeley Lake, MTThe pilot's selection of unsuitable terrain for landing. The snow covered runway was a factor.NTSB SEA96LA011Accident · No injuriesLimited investigationFinal reportCessna 210L · Lincoln, MTThe failure of the pilot to follow the landing checklist and assure that the landing gear was extended. Factors relating to the accident were: the pilot's diverted attention, and an inoperative landing gear warning system.NTSB SEA96LA009Accident · No injuriesLimited investigationFinal reportCessna 172N · Laurel, MTthe student pilot's improper planning/decision, which resulted in inadequate altitude/clearance from hangar buildings and a subsequent emergency landing, while attempting to evade a flock of geese. The flock of geese was a related factor.NTSB SEA95LA218Accident · No injuriesLimited investigationFinal reportCessna 180 · Pray, MTThe loss of directional control due to the loss of right tailwheel steering. Factors in the accident were: a left quartering crosswind and the sloped side of the road.NTSB SEA95FA209Accident · 1 fatalField investigationFinal reportCessna 180J · Browning, MTClearance from the ground was not maintained while attempting a VFR flight into IMC weather conditions. A factor to the accident was fog.NTSB SEA95LA193Accident · No injuriesLimited investigationFinal reportHall Kitfox 1 · Pompeys Pillar, MTthe pilot's delayed decision to abort the takeoff. High density altitude, unavailabilty of aircraft takeoff performance data, and the short rough takeoff area were factors in the accident.NTSB SEA95LA190Accident · No injuriesLimited investigationFinal reportMooney M20K · Roundup, MTan engine failure due to foreign object ingestion into the oil pump. A ruptured oil inlet screen contributed to the accident.NTSB SEA95LA181Accident · Serious injuriesLimited investigationFinal reportTaylorcraft BC12D · St. Mary, MTThe pilot-in-command's failure to maintain proper altitude while maneuvering in high, mountainous, terrain. The terrain and the downdrafts were factors.NTSB SEA95LA173Accident · No injuriesLimited investigationFinal reportCessna TU206F · Ennis, MTThe pilot-in-command's inaccurate weather evaluation and continued flight into adverse weather. The microburst was a factor.NTSB SEA95FA175Accident · 2 fatalField investigationFinal reportBeech F33A · Swan Lake, MTthe pilot's incapacitation due to a heart attack.NTSB SEA95LA169Accident · No injuriesLimited investigationFinal reportCessna 172C · Red Lodge, MTThe pilot's failure to maintain airspeed. The pilot's inadequate preflight planning/preparation and selection of unsuitable terrain for landing were factors.NTSB SEA95LA161Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Havre, MTthe loss of power due to a failure of the cylinder head exhaust valve rocker box. The tall crop encountered during the forced landing is a factor.NTSB SEA95LA134Accident · No injuriesLimited investigationFinal reportCessna 210B · Lewiston, MTLoss of engine power due to undetermined reasons, and the lack of a suitable area for the forced landing.NTSB SEA95LA141Accident · No injuriesLimited investigationFinal reportMooney M20E · Ronan, MTDirectional control was not maintained. Factors to the accident were a rough/uneven airstrip and tall vegetation.NTSB SEA95LA123Accident · No injuriesLimited investigationFinal reportPiper PA-18A · Laurel, MTThe selection of unsuitable terrain for landing. A factor to the accident was tall vegetation.NTSB SEA95LA121Accident · No injuriesLimited investigationFinal reportBoeing A75N1 · Helena, MTThe pilots failure to maintain directional control. Contributing to the accident was the crosswind.NTSB SEA95LA119Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Helena, MTThe loss of engine power for undetermined reasons.NTSB SEA95LA114Accident · No injuriesLimited investigationFinal reportCessna 150J · Miles City, MTThe flight instructor's inadequate supervision. Factors to the accident were: The student pilot's failure to maintain aircraft control and the downdraft.NTSB SEA95LA113Accident · No injuriesLimited investigationFinal reportCessna 180 · Phillipsburg, MTThe failure of the dual student to maintain directional control during the bounced landing, and the failure of the certified flight instructor to take adequate remedial action and recover from the loss of directional control. A factor contributing to the…NTSB SEA95LA086Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Anaconda, MTThe pilot's attempt to conduct visual flight into instrument meteorological conditions, and his failure to maintain clearance from terrain.NTSB SEA95LA069Accident · No injuriesLimited investigationFinal reportScheibe Flugzeugbau Bergfalke II-55 · Bozeman, MTThe pilot misjudged his altitude and distance from the runway. A factor was the pilot's failure to obtain the current altimeter setting.NTSB SEA95GA062Accident · No injuriesFinal reportBell 206 · Dillon, MTThe pilot's selection of a landing site that was not suitable to support the weight of the helicopter. Factors include terrain covered with soft snow.NTSB SEA95LA050Accident · No injuriesLimited investigationFinal reportBeech S-35 · Wolf Point, MTThe loss of power due to lost oil pressure and a failed connecting rod. Factors include fence posts and dusk lighting conditions which limited visibility.NTSB SEA95FA043Accident · 1 fatalField investigationFinal reportBeech E18S · Butte, MTThe pilot's failure to follow the IFR procedure by not maintaining the proper altitude prior to the initial appraoch fix. Factors to the accident were dark night conditions and a low ceiling.NTSB SEA95FA025Accident · 2 fatalField investigationFinal reportPiper PA-31T1 · Brockway, MTa loss of control for undetermined reasons.NTSB SEA95IA021Incident · No injuriesIncident investigationFinal reportFairchild SA227 · Missoula, MTThe fatigue failure of the first stage compressor impeller.NTSB SEA95FA017Accident · 4 fatalField investigationFinal reportBeech 58P · Great Falls, MTThe pilot's failure to maintain airspeed. A factor to the accident was: inadequate aircraft preflight.NTSB SEA95LA001Accident · No injuriesLimited investigationFinal reportMaule M-5-235C · Billings, MTInadequate compensation for wind conditions. Factors to the accident were: crosswind and inadequate remedial action.NTSB SEA94LA240Accident · No injuriesLimited investigationFinal reportCessna 180G · Cut Bank, MTInadequate compensation for wind conditions. A factor to the accident was wind gusts.NTSB SEA94LA244Accident · No injuriesLimited investigationFinal reportI.C.A. Brasov IS-28B2 · Bozeman, MTThe student pilot's improper compensation for wind. The crosswind was a factor.NTSB SEA94FA237Accident · 2 fatalField investigationFinal reportPiper J3C-65 · Dixon, MTThe pilot in command's allowing the aircraft airspeed to decrease below the stall speed.NTSB SEA94LA236Accident · No injuriesLimited investigationFinal reportCessna 182 · Circle, MTThe failure of the pilot-in-command (CFI) to perform an adequate preflight inspection of the airplane, including the proper securing of the fuel cap. The pilot's failure to divert to the nearest airport after recognizing excessive fuel consumption was a…NTSB SEA94LA234Accident · No injuriesLimited investigationFinal reportCessna A185F · Conrad, MTThe cfi's failure to assure an adequate inspection of the aircraft, including the proper engagement and function of the rudder pedals, prior to the flight.NTSB SEA94T#A05Accident · No injuriesClass 3Final reportBell 206L3 · Libby, MTNTSB SEA94LA228Accident · Minor injuriesLimited investigationFinal reportSikorsky S-64F · Libby, MTThe flight crew allowed the helicopter's weight and balance to be exceeded, and the external load (tank) jettison system failed to operate. A factor related to the accident was: the false indication on the retardant quantity indicator.NTSB SEA94LA218Accident · No injuriesLimited investigationFinal reportBeech 99 · Helena, MTLanding gear locking mechanism overload and improper rigging.NTSB SEA94LA202Accident · 1 fatalLimited investigationFinal reportGroce Vans RV-4 · Glendive, MTAirspeed was not maintained after takeoff. A factor was high density altitude.NTSB SEA94T#A02Accident · No injuriesClass 3Final reportLockheed P2V-7 · Missoula, MT