NTSB investigations, MT
180,624 investigations by the National Transportation Safety Board since 1962: 174,602 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 DEN84LA287Accident · No injuriesLimited investigationFinal reportCessna 140 · Belgrade, MTThe plt stated that during the takeoff ground roll on the grass airstrip the engine did not seem to produce full power when 2/3 the way down the rwy. Plt applied brakes to abort the takeoff before the tailwheel was on the ground. The acft nosed over.NTSB DEN84LA283Accident · No injuriesLimited investigationFinal reportCessna 140 · Butte, MTThe plt taxied to rwy 11 and got out of the acft to check the wind. The rwy lights were not operating at the time. The pilot decided that rwy 11 was the most favorable rwy and the takeoff was attempted. The wind conditions at the time off the accident were…NTSB DEN84FA274Accident · 1 fatalField investigationFinal reportBoeing Stearman E75 · Kalispell, MTThe pilot was completing a turn to final on a normal aerial application maneuver. He was aprx 15 ft AGL at 65 mph when the a/c struck a bird (presumed to be a red tailed hawk). The force of the impact broke the plexiglass canopy and temporarily distracted the…NTSB DEN84LA268Accident · No injuriesLimited investigationFinal reportCessna 182Q · Billings, MTThe pilot was landing with a 30 degree left crosswind of 15 knots, gusting to 27 knots. On touchdown, the acft veered off the runway and nosed over. The pilot cited more crosswind training and practice as preventative actions.NTSB DEN84LA265Accident · Minor injuriesLimited investigationFinal reportCessna 170B · Poplar, MTPlt stated, 'river current 12-15 mph, landing area 100 yards wide, curving to right, wind gusting to 20 knots from right rear quarter. Approach was fast, and upon landing, aircraft remained on step, unresponsive to aileron and rudder for turning. Quartering…NTSB DEN84LA260Accident · No injuriesLimited investigationFinal reportBell 47G · West Glacier, MTFollowing in-flight power loss the pilot performed an autorotation to a forced landing on a highway. On touchdown, the main rotor made contact with a passing motor home. Investigation revealed no fuel on board, although the pilot calculated 0.6 hours of fuel…NTSB DEN84LA240Accident · No injuriesLimited investigationFinal reportCessna 310Q · Havre, MTDuring cruise flight with five adults and two infants on board, the pilot noted left engine oil pressure decreasing and a visible oil leak. Engine shutdown and propeller feather were accomplished but altitude could not be maintained. A forced landing was…NTSB DEN84LA230Accident · No injuriesLimited investigationFinal reportSikorsky S-55B · Richey, MTThe pilot stated that he landed in a pasture where he intended to refuel. During the landing roll, one of the wheels dropped into a hole, causing the main rotor blade to flex downward and severe the tailboom.NTSB DEN84LA224Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Richey, MTThe plt had finished spraying & was proceeding to the glendive arpt. He said that eng or prop began a sudden severe vibration which required the eng to be shut down. An emegency landing was made. The plt stated that the left wing impacted a hill which spun…NTSB DEN84LA208Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Townsend, MTThe acft weathervaned during landing in a crosswind and collided with a fence and irrigation pipe off the left side of the rwy. The student plt had thought the landing in a x-wind would be good practice so he continued the approach but at the last momemt…NTSB DEN84LA195Accident · No injuriesLimited investigationFinal reportBellanca 7GCBC · Dillon, MTThe plt reported that a nature movie was being made & he was making a short field landing for a film sequence. On the 3rd apch, he made a shorter base leg than normal, then on final apch, the acft stalled & 'slid in'. The left maincollapsed and the left wing…NTSB DEN84LA181Accident · No injuriesLimited investigationFinal reportCessna A188B · Opheim, MTThe acft was damaged in a forced landing after the engine quit. The plt said that several weeks prior to the accident hediscovered the fuel crossover quick drain was 'frozen' shut and would not drain. He removed the drain to lubricate it and upon…NTSB DEN84LA229Accident · No injuriesLimited investigationFinal reportCessna T-206 · Kalispell, MTThe pilot reported complete power loss while turning final. Attempts to restore pwr were unsuccessful and the aircraft was landed hard in the grass short of rwy. Investigation failed to reveal evidence of engine malfunction or failure.NTSB DEN84LA182Accident · No injuriesLimited investigationFinal reportCessna 180C · Lustre, MTDue to strong crosswind conditions at the prepared landing strip, the pilot elected to land in an open field. On touchdown, the right main landing gear encountered a hole, breaking the mounting structure and collapsing the gear. A ground loop ensued. The…NTSB DEN84LA164Accident · No injuriesLimited investigationFinal reportCessna 210E · Livingston, MTWhile on a visual flight plan flight the non-instrument rated plt operated his unpressurized Cessna 210 above the clouds and up to an altitude of 16500 feet MSL. The plt stated that just after passing, 'crazy peak', he encountered extreme turbulence and the…NTSB DEN84FA155Accident · 1 fatalField investigationFinal reportCessna 180H · Broadus, MTDuring the initial takeoff climb in a westerly direction a severe wind gust from the south occurred at an alt of aprx 150 AGL. The plt turned the acft to the south and a rapid increase in alt of aprx 60-70 ft occurred. The wind stopped suddenly and the acft…NTSB DEN84LA141Accident · No injuriesLimited investigationFinal reportCessna 152 · Billings, MTDuring a crosswind takeoff the right wing began to raise just as the plt was thinking about rotating. This startled him & he aborted the takeoff. The acft departed the left side of the rwy & flipped over on its back.NTSB DEN84FA121Accident · Serious injuriesField investigationFinal reportAero Commander 500-B · Miles City, MTThe plt said that when he called on the radio prior to the approach for an altimeter setting the reply was '30.11 or 30.12, something like that.' The acft altimeter was found after the accident set at 30.22 inches of mercury. The visibility was described as 1…NTSB DEN84LA118Accident · No injuriesLimited investigationFinal reportCessna A188B · Hardin, MTThe plt returned to the arpt with about a 100 gal load of spray solution on board when the flagger would not work. During the landing, the acft swerved to the left & the right gear collapsed. No mechanical malfunction or failure of the gear or brakes was…NTSB DEN84FA307Accident · 4 fatalField investigationFinal reportRockwell 112TCA · Missoula, MTThe pilot had filed an IFR clearance. While taxiing to takeoff, he requested and received a clearance to climb VFR on course, via victor airway 2, with instructions to report when reaching 10,000' MSL. This was the last communication received from the pilot.…NTSB DEN84FU002Accident · 1 fatalFinal reportEipper Quicksilver MX · Libby, MTAccording to witnesses, the ultralight vehicle was on an apch to the arpt when it entered a left descending turn & continued the turn until impacting a tree. One witness said the plt was bent over forward. Reportedly, the plt made no movements with his hands…NTSB DEN84LA094Accident · No injuriesLimited investigationFinal reportWeatherly 201B · Townsend, MTThe acft engine lost power on the base leg when the plt retarded the throttle. The plt landed on the rwy, but the acft started to veer to the right. The plt said he applied the brakes which did not seem to operate. Later, he said he may have had his feet on…NTSB DEN84FA086Accident · 1 fatalField investigationFinal reportCessna T210M · Sidney, MTRichland flt #101, a bank check courier flt, departed VFR with 180 lbs of cargo. Six minutes prior to the crash, the last radio transmission from the acft was heard concerning a routine landing wx advisory. The acft crashed aprx 45 degs nose low, gear & flaps…NTSB DEN84LA083Accident · Minor injuriesLimited investigationFinal reportMaule M-4S · Three Forks, MTThe plt was flying low toward rising terrain. The airspeed slowed to the point that the point that the acft mushed into the ground and cartwheeled. The plt said he had not removed all the frost on the wings prior to flt and he thought the stall speed was…NTSB DEN84FA081Accident · 1 fatalField investigationFinal reportEnstrom F-28C · Chester, MTAccording to a company employee, the plt made a radio call from a remote mountain site where the plt was doing some workon a transmitter tower & stated that he was taking off, & if the employee did not hear from him in an hour to come look for him. The…NTSB DEN84LA078Accident · Minor injuriesLimited investigationFinal reportPiper J3C-65 · Billings, MTThe plt stated that during takeoff a gust of wind blew the acft to the right and he decided to abort the takeoff. Duringthe abort the acft departed the rwy, went down a bank and came to rest upside down.NTSB DEN84LA063Accident · Serious injuriesLimited investigationFinal reportCessna 152 · Homestead, MTThe acft crashed from an altitude of 200 ft while maneuvering over a creek. The acft was overloaded by 135 lbs with 2 occupants and full fuel. There were no FAA records found on the plt.NTSB DEN84LA058Accident · No injuriesLimited investigationFinal reportPiper PA-32-260 · Ekalaka, MTThe plt stated that during touchdown the acft hit an area of patchy snow & the acft veered off the rwy into a snowbank.NTSB DEN84LA052Accident · No injuriesLimited investigationFinal reportLake LA-4-200 · Great Falls, MTThe acft was damaged in a forced landing on a highway after the engine seized. The plt said 'the engine made unusual sounds of an engine running bad.' Then it lost compression and seized. He made a forced landing on a highway and damagedthe hull. Examination…NTSB DEN84LA034Accident · Serious injuriesLimited investigationFinal reportCessna 172N · Helena, MTThe acft propeller struck a passenger who was attemping to sweep snow off the acft. The plt's and passenger's version of mishap vary. The plt stated he instructed the passenger to stay away from the acft. The passenger stated the plt toldhim to sweep the snow…NTSB DEN84LA028Accident · No injuriesLimited investigationFinal reportCessna 170B · Kalispell, MTThe acft landed hard just short of the rwy after the plt exprienced icing problems in flt. The airspeed indicator stopped working in flt so the plt was attempting a landing and says he also lost engine power at about 30 ft in the air during the flare for…NTSB DEN84LTI01Accident · Serious injuriesFinal reportBenson B8M · Libby, MTThe acft crashed into trees during a takeoff and descended inverted to the ground. The pilot stated he had not intended to fly a pattern but merely takeoff and land in a modified high speed taxi run. But on this last run he ran out of rwy and decided to go…NTSB SEA83FA208Accident · 2 fatalField investigationFinal reportCessna 182N · Kalispell, MTThe pilot's failure to maintain clearance from the terrain while attempting to maneuver back to the departure airport after encountering icing conditions. Factors include icing conditions, mountainous terrain, and low ceilings.NTSB DEN83LA202Accident · No injuriesLimited investigationFinal reportPiper PA-11-90 · Babb, MTThe pilot said that before takeoff, he fueled the left tank of the aircraft. The right tank was reportedly empty. Five or ten minutes after takeoff the pilot put the acft into a 5 degree left forward slip for about 30 seconds. As soon as the pilot returned…NTSB DEN83LA201Accident · No injuriesLimited investigationFinal reportCessna 180 · Busby, MTAccording to the pilot he was making a downwind landing to avoid taxiing over rough ground any farther than necessary. After touchdown he travelled about 150 yards up the runway when a gust of wind picked up the tail and he lost control ending in a ground…NTSB DEN83LA205Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Alzada, MTThe acft nosed over during landing after the landing gear collapsed. The plt said the landing was a little hard and thathe hit a bump which broke the left shock cord. The plt stated that he does not believe that the landing was hard enough to fail the gear…NTSB DEN83LA194Accident · No injuriesLimited investigationFinal reportPiper PA-12 · St. Xavier, MTThe acft collided with a fence during an attempted go-around in a field which was estimated to be 500 ft long. The wind was calm and the density alt was calculated to be 4900 ft. after landing and rolling 300 ft the plt decided he would not be able to stop.…NTSB DEN84LA185Accident · No injuriesLimited investigationFinal reportPiper 601P · Billings, MTBefore starting the flt, the acft was loaded with full fuel, 5 adult passengers & aprx 45 lbs of baggage. The elevation & temp at the arpt were 3606 ft & 93 deg. The plt said he did not calculate the weight & balance or density altitude limits for this flt…NTSB DEN83LA177Accident · No injuriesLimited investigationFinal reportBell 206B · Melrose, MTThe helicopter tail rotor contacted a forest service sign post during landing. The pilot was aware of the post when landing but landed near it for convenience in refueling. The landing was on a slope and the nose of the acft started sliding on the slope. The…NTSB DEN83LA172Accident · No injuriesLimited investigationFinal reportCessna T188C · Bozeman, MTThe acft settled into trees after the engine lost power during a swath run. The flt had been in progress for about 15 minutes. The plt started the 4th run and the acft started to settle. The plt dumped the load but did not touch the throttle or mixture. He…NTSB DEN83LA181Accident · No injuriesLimited investigationFinal reportCessna 182 · Forsyth, MTThe flt originated at cambridge, id with a planned refueling stop at billings, MT. The plt stated the acft was 'topped off' at cambridge before takeoff. En route, southerly winds were encountered which drifted the acft north, so a refueling stop was made at…NTSB DEN83LA154Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 Soloy · Townsend, MTThe helicopter made a hard touchdown during an autorotative forced landing after the engine quit. During the landing themain rotor severed the tail boom. The pilot stretched the autorotational glide to reach a hay field and lost main rotor RPM in the process.…NTSB DEN83LA143Accident · Minor injuriesLimited investigationFinal reportCessna U206 · Billings, MTThe acft nosed over during a forced landing after the engine quit during descent for approach to land. The pilot stated that very shortly after the beginning of descent to land the engine quit at 5000 ft while he was accomplishing the checklist. The plt said…NTSB DEN83LA142Accident · No injuriesLimited investigationFinal reportCessna 182Q · Hysham, MTThe plt reported that he aborted his x-country flt due to IMC ahead. While returning to billings, MT, oil & smoke started coming from the eng compartment & oil covered his windshield. The eng began losing power, so he shut it down. While making an emergency…NTSB DEN83LA137Accident · Serious injuriesLimited investigationFinal reportCessna A188B · Saco, MTThe acft collided with telephone lines during an aerial application run. The pilot's son reported that the acft was pulling up at the end of a spray run when the wires were hit. Most of the wires in this area are underground however thewires at the end of…NTSB DEN83LA136Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Conrad, MTThe acft landed hard and collapsed the right main landing gear during a forced landing after fuel exhaustion. During a landing to reload the pilot had handled the herbicide on-loading and a ground crewman was loading the acft fuel. The supply of 80/87 octane…NTSB DEN83LA134Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-235 · Hamilton, MTGround roll during takeoff was normal but at liftoff the acft began a roll to the left. The pilot said he began the takeoff with less than full power but added full power as the turn began. He tried to correct with aileron to no avail. The acft was now…NTSB DEN83LA127Accident · Serious injuriesLimited investigationFinal reportPiper PA-18A-150 · Hilger, MTThe pilot stated that he and another pilot were spraying a field in tandem formation at an alt of about 10 feet AGL. He was about 1/2 mile behind the lead acft and slightly to the left. After making a swath run he pulled up to about 100 ft AGL and started…NTSB DEN83LA128Accident · No injuriesLimited investigationFinal reportCessna 180B · Decker, MTThe tailwheel acft groundlooped on takeoff as the tail came up and the acft swerved sharply to the left. During the turn at about 40 mph the acft nosed over. The pilot noticed a pulling to the left as the takeoff roll commenced but thought he could contain it…NTSB DEN83LA121Accident · Minor injuriesLimited investigationFinal reportPiper PA-22-150 · Ennis, MTDuring a night flight, oil began spreading over the windshield & heavy smoke came in the cockpit through the cabin heater. The plt opened the cabin windows, reduced power & turned back toward the arpt. The oil pressure dropped to 5 PSI & the plt descended to…