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NTSB investigations, MT

304 cases where the phase of flight was Maneuvering.

Cases per year

19642026

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Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
    crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
    current_codes AS (
      SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
        row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
      FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
      WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
        AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
    ),
    phases AS (
      SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
      FROM current_codes WHERE n = 1
      UNION ALL
      SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
      FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
      WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
    ),
    case_phases AS (
      SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
      FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
      LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
      WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
    )
  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'
    AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 450)
  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.

NTSB WPR26LA360Accident · No injuriesClass 4 · LimitedInvestigation openCessna A185F · Livingston, MTSep 26, 2026 · N185BZ · Substantial damageNTSB WPR26LA280Accident · Serious injuriesClass 4 · LimitedFinal reportHarmon Rocket II · Glasgow, MTThe pilot’s inadvertent selection of the fuel selector valve to the OFF position resulted in a total loss of engine power due to fuel starvation and subsequent forced landing to a field.Jul 24, 2026 · C-FCPG · Substantial damageNTSB WPR25LA239Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ponderosa Pines, MTThe pilot’s improper pedal application during an approach to a hover.Aug 3, 2025 · N750GT · Substantial damageNTSB 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…Jun 19, 2025 · N79306 · Substantial damageNTSB WPR25LA165Accident · No injuriesClass 4 · LimitedFinal reportWeatherly 620B · Lewiston, MTThe pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude.May 30, 2025 · N90393 · Substantial damageNTSB 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.Aug 8, 2024 · N2764Q · Substantial damageNTSB 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…Jul 10, 2024 · N10122 · Substantial damageNTSB 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…May 14, 2024 · UNREG · Substantial damageNTSB WPR23LA001Accident · 1 fatalClass 3 · LimitedFinal reportScoda Aeronautica Ltda Super Petrel LS · Perma, MTThe pilot’s failure to maintain clearance from the powerline.Oct 2, 2022 · N892SP · Substantial damageNTSB WPR22LA293Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-301 · Circle, MTThe loss of engine power due to carburetor ice. Contributing to the accident was the pilot’s failure to use carburetor heat.Aug 7, 2022 · N36542 · Substantial damageNTSB 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…Jul 30, 2020 · N337V · Substantial damageNTSB 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.Jul 21, 2020 · N208MP · Substantial damageNTSB 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.Aug 29, 2019 · N9529Y · Substantial damageNTSB WPR19LA213Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 150 · Roundup, MTThe pilot ‘s failure to maintain an adequate altitude above the trees while maneuvering to land.Jul 30, 2019 · C-GEYP · Substantial damageNTSB 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.Jul 17, 2019 · N137C · DestroyedNTSB 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.Apr 30, 2019 · N350DL · Substantial damageNTSB 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.Jan 2, 2019 · N4934A · Substantial damageNTSB 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.Sep 12, 2018 · N166LC · Substantial damageNTSB 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.Sep 5, 2018 · N95514 · Substantial damageNTSB WPR18LA076Accident · Serious injuriesClass 3 · LimitedFinal reportBuckeye Industries Dream Machine 582 · Chester, MTThe pilot's failure to maintain adequate clearance from powerlines.Jan 19, 2018 · N92048 · Substantial damageNTSB WPR17LA168Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Lake Sutherlin, MTThe pilot’s transition into an out-of-ground-effect hover in high-density altitude conditions that exceeded the helicopter’s performance capabilities, which resulted in loss of rotor rpm.Jul 25, 2017 · N233JD · Substantial damageNTSB WPR17LA145Accident · Serious injuriesLimited investigationFinal reportPiper L 21B · Big Timber, MTThe pilot's decision to fly at low altitude in the vicinity of power lines, which resulted in a wire strike.Jul 8, 2017 · N99031 · Substantial damageNTSB WPR17LA143Accident · Serious injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Ronan, MTThe pilot's failure to maintain adequate airspeed, which resulted in a loss of tail rotor effectiveness during a low-altitude orbiting maneuver and a subsequent hard landing.Jul 6, 2017 · N442DR · Substantial damageNTSB GAA17CA225Accident · No injuriesData collectionFinal reportWeatherly 620B · Lewistown, MTThe pilot’s failure to maintain altitude during low-altitude maneuvers in flat light conditions.Apr 10, 2017 · N9004M · Substantial damageNTSB GAA16CA080Accident · Minor injuriesData collectionFinal reportAviat A1 · Broadus, MTThe pilot's failure to maintain clearance from the wires while flying at a low altitude resulting in a wire strike, a loss of airplane control, and the consequent impact with terrain.Dec 13, 2015 · N29712 · Substantial damageNTSB GAA15LA217Accident · Minor injuriesLimited investigationFinal reportMD Helicopter 369E · Whitefish, MTThe pilot’s failure to maintain altitude and a level attitude while hovering over water at night during an external load operation, which resulted in the helicopter’s main rotor contacting the surface of the water.Aug 5, 2015 · N43792 · Substantial damageNTSB GAA15CA089Accident · No injuriesData collectionFinal reportCessna 188 · Polson, MTThe pilot's failure to maintain airplane pitch, power, and turn coordination while maneuvering at low altitude, resulting in an aerodynamic stall and a collision with terrain.May 26, 2015 · N53141 · Substantial damageNTSB WPR15CA128Accident · No injuriesData collectionFinal reportEnstrom F28 - C · Shelby, MTThe pilot's failure to maintain main rotor RPM during a low altitude operation, which resulted in a loss of aircraft control and collision with terrain.Mar 14, 2015 · N5688N · Substantial damageNTSB WPR15FA062Accident · 1 fatalField investigationFinal reportPiper PA 18-150 · Ronan, MTThe pilot’s failure to maintain clearance from terrain while performing an intentional, abrupt low-level maneuver.Dec 16, 2014 · N5989Z · Substantial damageNTSB WPR15FA049Accident · 1 fatalField investigationFinal reportCessna 170B · Alzada, MTThe pilot's failure to maintain airplane control while maneuvering, which resulted in a collision with mountainous terrain.Nov 28, 2014 · N3292A · Substantial damageNTSB WPR14FA362Accident · 1 fatalField investigationFinal reportCessna 177B · Neihart, MTThe pilot's failure to maintain clearance from terrain while maneuvering at low altitude in turbulent conditions over mountainous terrain. Contributing to the accident was the pilot's improper decision to traverse the mountainous area with the airplane over…Sep 2, 2014 · N34880 · DestroyedNTSB WPR14FA231Accident · 1 fatalField investigationFinal reportGrumman G 21A · Sula, MTThe pilot's decision to continue flight into deteriorating weather conditions in an airplane not maintained for instrument flight, which resulted in a loss of control due to spatial disorientation.Jun 17, 2014 · N888GG · DestroyedNTSB WPR14CA041Accident · No injuriesData collectionFinal reportBell 206B · Superior, MTThe pilot's failure to maintain aircraft control while maneuvering during a long-line operation.Nov 2, 2013 · N888DR · Substantial damageNTSB WPR13FA343Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Thompson Falls, MTThe pilot's failure to maintain helicopter control while operating in conditions conducive to a loss of tail rotor effectiveness.Jul 27, 2013 · N25WH · Substantial damageNTSB WPR13LA303Accident · Serious injuriesLimited investigationFinal reportBell 206L-3 · Missoula, MTThe pilot's failure to prevent the helicopter from settling with power and to maintain proper position relative to an external load, which resulted in a loss of control and subsequent hard landing.Jun 28, 2013 · N868H · Substantial damageNTSB WPR13FA288Accident · 1 fatalField investigationFinal reportBeech J35 · Helena, MTThe pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall/spin and subsequent impact with terrain.Jun 24, 2013 · N8255D · Substantial damageNTSB WPR13FA208Accident · 1 fatalField investigationFinal reportBell 206B · Shepherd, MTThe pilot’s loss of control while maneuvering during low-altitude operations due to sudden neurological impairment or incapacitation and the helicopter’s subsequent collision with power lines.Apr 27, 2013 · N150SP · Substantial damageNTSB WPR13TA205Accident · No injuriesFinal reportBell BHT407 · Big Fork, MTThe pilot’s failure to maintain helicopter control while maneuvering over mountainous terrain in strong up/downdrafts and possible mountain wave activity, which resulted in a loss of tail rotor effectiveness.Apr 25, 2013 · N937GR · Substantial damageNTSB WPR13FA073Accident · 2 fatalField investigationFinal reportBeech B100 · Libby, MTThe noncertificated pilot’s failure to maintain clearance from terrain while maneuvering to land in dark night conditions likely due to his geographic disorientation (lost). Contributing to the accident was the pilot’s improper decision to fly at night with a…Dec 19, 2012 · N499SW · DestroyedNTSB WPR13LA069Accident · Serious injuriesLimited investigationFinal reportPowerchute Airwolf 912ULS · Dell, MTThe pilot's failure to maintain aircraft control and clearance from mountainous terrain while maneuvering at a low altitude in downdraft conditions.Dec 14, 2012 · N480QP · Substantial damageNTSB WPR12TA364Accident · No injuriesFinal reportAmerican Eurocopter AS350B3 · Sunburst, MTThe improper installation of the engine-to-main gearbox flex coupling, which resulted in the failure of the flex coupling and a loss of power to the rotor system during takeoff.Aug 18, 2012 · N3939A · Substantial damageNTSB WPR12FA123Accident · 1 fatalField investigationFinal reportBellanca 7GCBC · Brockton, MTThe pilot’s failure to maintain adequate airspeed and airplane control while maneuvering at a low altitude, which resulted in a stall and subsequent impact with terrain.Mar 5, 2012 · N5542K · Substantial damageNTSB WPR12CA025Accident · No injuriesData collectionFinal reportCessna 172K · Florence, MTThe pilot's failure to maintain clearance from a power line during a low-level flight along a river. Contributing to the accident was the pilot's decision to fly at a low altitude.Oct 30, 2011 · N7276G · Substantial damageNTSB WPR11FA390Accident · 2 fatalField investigationFinal reportPiper PA-18-150 · Forsyth, MTThe pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in a stall/mush, loss of control, and impact with terrain.Aug 18, 2011 · N7666D · Substantial damageNTSB WPR11FA383Accident · 2 fatalField investigationFinal reportPiper PA-38-112 · Silver Bow, MTThe pilot's failure to maintain airplane control while maneuvering.Aug 15, 2011 · N2584N · Substantial damageNTSB WPR11LA272Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Hogeland, MTCollision with the ground while maneuvering at low altitude for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.Jun 21, 2011 · N3661B · Substantial damageNTSB WPR11CA296Accident · Minor injuriesData collectionFinal reportCessna 188 · Glasgow, MTThe pilot's improper fuel management, which resulted in a total loss of engine power due to fuel exhaustion.Jun 14, 2011 · N9802V · Substantial damageNTSB WPR11FA221Accident · 1 fatalField investigationFinal reportAir Tractor AT-802A · Miles City, MTThe pilot's continued visual flight rules flight into deteriorating weather conditions in an airplane not equipped for instrument flight, which resulted in a collision with terrain.May 9, 2011 · N8523H · Substantial damageNTSB WPR10FA438Accident · 1 fatalField investigationFinal reportCessna 182C · Belgrade, MTThe non-instrument rated pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in a loss of airplane control.Aug 30, 2010 · N8957T · Substantial damageNTSB WPR10FA330Accident · 4 fatalField investigationFinal reportPiper PA-28R-180 · Dixon, MTThe pilot’s failure to maintain adequate airspeed and aircraft control while maneuvering, resulting in an aerodynamic stall and collision with mountainous terrain.Jun 27, 2010 · N7581J · Substantial damage