# NTSB investigations, MT

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 8 of 45 · 2,224 cases

## Cases, newest first

- [NTSB SEA07CA220](https://openairdocs.org/ntsb/SEA07CA220.md): Hughes 269C · Three Forks, MT · Accident · No injuries · Data collection · Final report · Jul 30, 2007 · N428MS · Substantial damage
  > The student pilot's failure to maintain control of the aircraft during autorotation. The flight instructor's inadequate supervision was a factor.
- [NTSB LAX07LA238](https://openairdocs.org/ntsb/LAX07LA238.md): de Havilland Beaver DHC-2 MK.1 · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Jul 24, 2007 · N6784L · Substantial damage
  > A loss of engine power due to the failure of the supercharger impeller bushing, which allowed raw oil to enter the induction system.
- [NTSB SEA07LA210](https://openairdocs.org/ntsb/SEA07LA210.md): Beech E-33C · Laurel, MT · Accident · No injuries · Limited investigation · Final report · Jul 17, 2007 · N7927R · Substantial damage
  > The overload failure of the nose gear retract brace (drag link) during the landing roll.
- [NTSB SEA07TA202](https://openairdocs.org/ntsb/SEA07TA202.md): Bell UH-1H · Benchmark, MT · Accident · Minor injuries · Final report · Jul 16, 2007 · N667HP · Substantial damage
  > Dense smoke/haze which restricted the pilot's visibility and the pilot's failure to maintain aircraft control during the emergency descent resulting in impact with terrain.
- [NTSB SEA07CA200](https://openairdocs.org/ntsb/SEA07CA200.md): Bell 206B II · Sheep Mountain, MT · Accident · Minor injuries · Data collection · Final report · Jul 16, 2007 · N164JS · Substantial damage
  > The external load net, attached directly to the cargo hook without the use of a long line, oscillated and made contact with the tail rotor system while maneuvering.
- [NTSB SEA07CA194](https://openairdocs.org/ntsb/SEA07CA194.md): Piper PA-18-150 · Jordan, MT · Accident · No injuries · Data collection · Final report · Jul 13, 2007 · N7145Z · Substantial damage
  > The pilot's failure to maintain aircraft control during a go-around. Contributing factors were the pilot's selection of unsuitable terrain for landing and the rough/uneven terrain.
- [NTSB SEA07CA179](https://openairdocs.org/ntsb/SEA07CA179.md): Cessna 170A · Bozeman, MT · Accident · Serious injuries · Data collection · Final report · Jun 24, 2007 · N1316D · Substantial damage
  > The pilot's inadequate visual lookout and failure to maintain airspeed, which resulted in an inadvertent stall and uncontrolled descent into terrain while manuevering to avoid the transmission lines. The sun glare was a factor.
- [NTSB SEA07TA174](https://openairdocs.org/ntsb/SEA07TA174.md): Cessna 185C · Kalispell, MT · Accident · No injuries · Final report · Jun 20, 2007 · N391M · Substantial damage
  > The complete loss of engine power during an attempted go-around from a simulated engine-out landing. Factors include rough/uneven terrain and high vegetation where the pilot made an emergency forced landing.
- [NTSB SEA07LA166](https://openairdocs.org/ntsb/SEA07LA166.md): Cessna T188C · Rock Springs, MT · Accident · No injuries · Limited investigation · Final report · Jun 10, 2007 · N2535J · Substantial damage
  > The failure of the left main landing gear due to fatigue.
- [NTSB LAX07CA187](https://openairdocs.org/ntsb/LAX07CA187.md): Aviat Husky A1-B · Winston, MT · Accident · Serious injuries · Data collection · Final report · Jun 3, 2007 · N246AM · Destroyed
  > The pilot's failure to maintain an adequate airspeed while maneuvering at low altitude in a canyon that led to a stall. The pilot's decision to fly along the canyon wall at a low altitude and low energy state was a factor.
- [NTSB LAX07CA183](https://openairdocs.org/ntsb/LAX07CA183.md): Cessna 210F · Denton, MT · Accident · No injuries · Data collection · Final report · Jun 1, 2007 · N9RB · Substantial damage
  > The pilot's decision to abort the landing with insufficient runway available to gurantee obstruction clearance.
- [NTSB SEA07LA135](https://openairdocs.org/ntsb/SEA07LA135.md): Hughes 369D · Columbus, MT · Accident · 1 fatal · Limited investigation · Final report · May 28, 2007 · N765HV · Destroyed
  > The fatigue failure of a turbine blade due to a localized over-temperature of the turbine section as result of a non-uniform fuel distribution by the fuel nozzle. Contributing to the accident was the close proximity of a power line support structure which…
- [NTSB SEA07LA133](https://openairdocs.org/ntsb/SEA07LA133.md): Beech B-99 · Billings, MT · Accident · No injuries · Limited investigation · Final report · May 19, 2007 · N950AA · Substantial damage
  > The total failure of the nose landing gear actuator and the subsequent nose gear collapse during landing.
- [NTSB SEA07FA119](https://openairdocs.org/ntsb/SEA07FA119.md): Cessna 182C · Marion, MT · Accident · 5 fatal · Field investigation · Final report · May 12, 2007 · N8771T · Substantial damage
  > The pilot’s failure to maintain aircraft control while maneuvering to reverse direction. Factors included the airplane exceeding its maximum gross takeoff weight, the improper preflight by the pilot by not securing an oil cap, the low altitude, and an…
- [NTSB LAX07CA164](https://openairdocs.org/ntsb/LAX07CA164.md): Maule MXT-7-180A · Red Lodge, MT · Accident · No injuries · Data collection · Final report · May 12, 2007 · N10484 · Substantial damage
  > The pilot's inadequate compensation for gusty crosswind conditions and failure to maintain proper runway alignment that resulted in dragging a wing and ground looping. Also causal was the pilot's delayed decision to abort the landing.
- [NTSB LAX07FA150](https://openairdocs.org/ntsb/LAX07FA150.md): Cessna S550 · Dillon, MT · Accident · 2 fatal · Field investigation · Final report · May 3, 2007 · N22HP · Destroyed
  > An in-flight loss of control for undetermined reasons.
- [NTSB SEA07LA114](https://openairdocs.org/ntsb/SEA07LA114.md): Britten-Norman BN-2A-20 · Hamilton, MT · Accident · Minor injuries · Limited investigation · Final report · Apr 28, 2007 · N634MA · Substantial damage
  > The loss of power in one engine, for undetermined reasons, soon after establishing the takeoff departure climb. Factors include rough/uneven terrain.
- [NTSB SEA07CA102](https://openairdocs.org/ntsb/SEA07CA102.md): North American Aviation Div. T-28C · Red Lodge, MT · Accident · Minor injuries · Data collection · Final report · Apr 17, 2007 · N464SB · Destroyed
  > The lack of suitable terrain for a forced landing. Contributing factors were the loss of engine power during takeoff for undetermined reasons, and rough/uneven condition of the terrain.
- [NTSB SEA07CA069](https://openairdocs.org/ntsb/SEA07CA069.md): Bell 206 B3 · Custer, MT · Accident · No injuries · Data collection · Final report · Mar 5, 2007 · N150SP · Substantial damage
  > The pilot’s failure to maintain clearance between the tail rotor of his helicopter and a piece of farm equipment during the landing sequence.
- [NTSB SEA07FA051](https://openairdocs.org/ntsb/SEA07FA051.md): Beech 200 · Belgrade, MT · Accident · 3 fatal · Field investigation · Final report · Feb 7, 2007 · N45MF · Substantial damage
  > The pilot's failure to maintain an adequate altitude and descent rate during a night visual approach. Dark night conditions and mountainous terrain are factors in the accident.
- [NTSB SEA07CA029](https://openairdocs.org/ntsb/SEA07CA029.md): Cessna 172RG · Laurel, MT · Accident · No injuries · Data collection · Final report · Dec 11, 2006 · N6501V · Substantial damage
  > The pilot's inadequate compensation for the crosswind conditions during the landing roll, which resulted in a loss of control and subsequent nose over. A contributing factor was the crosswind condition.
- [NTSB SEA07LA024](https://openairdocs.org/ntsb/SEA07LA024.md): Cessna 152 · Missoula, MT · Accident · No injuries · Limited investigation · Final report · Nov 25, 2006 · N93239 · Substantial damage
  > The student pilot's misjudged distance/speed during final approach, which resulted in an overrun during landing roll and collision with a fence.
- [NTSB SEA07LA020](https://openairdocs.org/ntsb/SEA07LA020.md): Cessna 170B · Billings, MT · Accident · No injuries · Limited investigation · Final report · Nov 18, 2006 · N2619D · Substantial damage
  > The flight instructor's inadequate remedial action to maintain directional control, which resulted in a ground loop/swerve during takeoff roll. A factor was the failure of the pilot who was receiving instruction to maintain directional control.
- [NTSB SEA07FA014](https://openairdocs.org/ntsb/SEA07FA014.md): Bell 407 · Kalispell, MT · Accident · No injuries · Field investigation · Final report · Nov 3, 2006 · N407KH · Substantial damage
  > On-speed failure of the second stage turbine wheel as the result of engine oil starvation. The lack of maintenance oversight was a contributing factor.
- [NTSB SEA07LA002](https://openairdocs.org/ntsb/SEA07LA002.md): Cessna 340A · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Oct 2, 2006 · N1920E · Substantial damage
  > The fracture of the adjusting bellcrank in overstress due to binding in a linkage forward of the bell crank.
- [NTSB SEA06CA191](https://openairdocs.org/ntsb/SEA06CA191.md): Maule M-6-235 · Ronan, MT · Accident · No injuries · Data collection · Final report · Sep 29, 2006 · N9918T · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in the tailwheel-equipped aircraft. A swale (sunken area) between the runway and the taxiway was a factor.
- [NTSB SEA06CA183](https://openairdocs.org/ntsb/SEA06CA183.md): Cessna 305A · Lewistown, MT · Accident · No injuries · Data collection · Final report · Sep 13, 2006 · N5074H · Substantial damage
  > The pilot's failure to maintain aircraft control during landing, which resulted in an inadvertent swerve and nose down. A contributing factor was the gusty wind condition.
- [NTSB SEA06CA182](https://openairdocs.org/ntsb/SEA06CA182.md): Maule M-4-180V · Lewistown, MT · Accident · No injuries · Data collection · Final report · Sep 11, 2006 · N786ST · Substantial damage
  > The airplane inadvertently impacted a coyote hole during the landing roll on unsuitable terrain.
- [NTSB SEA06CA178](https://openairdocs.org/ntsb/SEA06CA178.md): Cessna 150 · Laurel, MT · Accident · Minor injuries · Data collection · Final report · Sep 6, 2006 · N6581T · Substantial damage
  > The pilot's excessive application of the brakes during an aborted takeoff, which resulted in a nose over.
- [NTSB SEA06LA167](https://openairdocs.org/ntsb/SEA06LA167.md): Kinnson Lancair IV-P Turbine · Helena, MT · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 2006 · N514PT · Substantial damage
  > The total loss of engine power as a result of turbine over temperature due to the pilot's failure to follow proper procedures for engine operation. A contributing factor was the lack of suitable terrain for the ensuing forced landing.
- [NTSB SEA06LA164](https://openairdocs.org/ntsb/SEA06LA164.md): Bellanca 8GCBC · Townsend, MT · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2006 · N4109Y · Substantial damage
  > The pilot's failure to maintain terrain clearance while intentionally maneuvering low to the ground.
- [NTSB SEA06CA165](https://openairdocs.org/ntsb/SEA06CA165.md): Bell 407 · Havre, MT · Accident · No injuries · Data collection · Final report · Aug 19, 2006 · N407SH · Substantial damage
  > The pilot inadvertently allowing the helicopter to enter into a vortex ring state (settling with power) condition while he was lowering a long-line load to the ground, resulting in the helicopter settling to the ground and its tail rotor impacting part of the…
- [NTSB SEA06TA153](https://openairdocs.org/ntsb/SEA06TA153.md): Bell 206L-1 · Busby, MT · Accident · No injuries · Final report · Aug 3, 2006 · N5746N · Substantial damage
  > The improper overhaul of the turbine assembly by maintenance personnel, which resulted in failure of the turbine and a total loss of engine power. A contributing factor was the pilot's misjudgment of the landing flare at the termination of the autorotation.
- [NTSB SEA06CA155](https://openairdocs.org/ntsb/SEA06CA155.md): Cessna 180H · Belgrade, MT · Accident · No injuries · Data collection · Final report · Aug 3, 2006 · N7955V · Substantial damage
  > The pilot's failure to maintain directional control while landing.
- [NTSB SEA06CA144](https://openairdocs.org/ntsb/SEA06CA144.md): Piper PA-11 · Turner, MT · Accident · No injuries · Data collection · Final report · Jul 15, 2006 · N4706H · Substantial damage
  > The passenger's inadvertent activation of the airplane's brakes during the landing roll, resulting in the pilot's loss of control and subsequent nose over. A factor was the pilot's inadequate preflight planning/preparation by not briefing the passenger about…
- [NTSB SEA06LA138](https://openairdocs.org/ntsb/SEA06LA138.md): Cessna Citation 560 · Hamilton, MT · Accident · No injuries · Limited investigation · Final report · Jul 10, 2006 · N50CV · Substantial damage
  > The pilot's failure to attain the proper touchdown point and to execute a go-around, which lead to an overrun of the runway surface. Contributing to the accident was his failure to maintain the correct landing approach speed (Vref), his failure to maintain…
- [NTSB SEA06CA132](https://openairdocs.org/ntsb/SEA06CA132.md): Cessna 195 · Great Falls, MT · Accident · No injuries · Data collection · Final report · Jul 3, 2006 · N6857D · Substantial damage
  > The pilot's loss of aircraft control during the takeoff roll, and the subsequent inadvertent ground loop.
- [NTSB SEA06FA126](https://openairdocs.org/ntsb/SEA06FA126.md): Pilatus PC-12/47 · Big Timber, MT · Accident · 2 fatal · Field investigation · Final report · Jun 24, 2006 · N768H · Destroyed
  > The flight instructor's failure to maintain an adequate airspeed while maneuvering, which led to an inadvertent stall.
- [NTSB SEA06CA120](https://openairdocs.org/ntsb/SEA06CA120.md): Cessna 180 · Great Falls, MT · Accident · No injuries · Data collection · Final report · Jun 18, 2006 · N2251C · Substantial damage
  > The pilot's failure to adequately compensate for wind conditions. A crosswind was a factor.
- [NTSB SEA06LA114](https://openairdocs.org/ntsb/SEA06LA114.md): Beech A36 · Ennis, MT · Accident · No injuries · Limited investigation · Final report · Jun 6, 2006 · N24BF · Substantial damage
  > The loss of engine power during takeoff due to an excessively lean fuel-to-air mixture ratio as a result of excessive mating surface wear between the mixture control arm and metering shaft. A factor was the improper installation of the new engine, which…
- [NTSB SEA06LA109](https://openairdocs.org/ntsb/SEA06LA109.md): Piper PA-28-160 · Laurel, MT · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 2006 · N1123W · Substantial damage
  > The failure of maintenance personnel to properly reinstall the left-hand control yoke to the left-hand control column, and the failure of other maintenance personnel to properly verify the installation, which resulted in the pilot's loss of control in flight…
- [NTSB SEA06CA106](https://openairdocs.org/ntsb/SEA06CA106.md): Cessna 170B · West Glacier, MT · Accident · No injuries · Data collection · Final report · May 21, 2006 · N3477C · Substantial damage
  > The pilot's failure to attain sufficient airspeed for flight, his attempt to abort the takeoff, and the airplane's subsequent departure off the end of the runway. Contributing factors were the impacted fence and vegetation, and his total lack of experience in…
- [NTSB SEA06CA103](https://openairdocs.org/ntsb/SEA06CA103.md): Cessna 172M · Hamilton, MT · Accident · No injuries · Data collection · Final report · May 20, 2006 · N12808 · Substantial damage
  > The pilot's inadequate compensation for the wind conditions during the landing roll which resulted in his failure to maintain directional control. Factors included variable winds and gusty crosswinds.
- [NTSB SEA06CA095](https://openairdocs.org/ntsb/SEA06CA095.md): Helmer Avid Magnum · Big Timber, MT · Accident · No injuries · Data collection · Final report · May 16, 2006 · N124WT · Substantial damage
  > The pilot's failure to maintain directional control after he diverted his attention to close the aircraft's door during the takeoff roll. Factors include a fence and fence post along the side of the runway.
- [NTSB SEA06CA094](https://openairdocs.org/ntsb/SEA06CA094.md): Harold Vander Avid Flyer · Miles City, MT · Accident · No injuries · Data collection · Final report · May 14, 2006 · N157VM · Substantial damage
  > Failure of the engine to propeller reduction gearbox for undetermined reasons. High vegetation was a factor.
- [NTSB SEA06CA098](https://openairdocs.org/ntsb/SEA06CA098.md): Cessna 172N · Billings, MT · Accident · No injuries · Data collection · Final report · Apr 30, 2006 · N739AJ · Substantial damage
  > The pilot's failure to maintain clearance from a sign while taxiing to parking.
- [NTSB SEA06CA088](https://openairdocs.org/ntsb/SEA06CA088.md): Potts MA-5 · Kalispell, MT · Accident · Minor injuries · Data collection · Final report · Apr 27, 2006 · N413AC · Substantial damage
  > Separation of the left main landing gear during the landing roll for an undetermined reason, which resulted in the airplane nosing down.
- [NTSB SEA06CA080](https://openairdocs.org/ntsb/SEA06CA080.md): Pitrolo GL-25 · Worden, MT · Accident · No injuries · Data collection · Final report · Apr 21, 2006 · N27EP · Substantial damage
  > The loss of engine power due to failure of both electronic ignition systems. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA06CA087](https://openairdocs.org/ntsb/SEA06CA087.md): Cessna 310R · Billings, MT · Accident · No injuries · Data collection · Final report · Apr 19, 2006 · N954EA · Substantial damage
  > Collapse of the right main landing gear during the landing roll for an undetermined reason.
- [NTSB SEA06LA074](https://openairdocs.org/ntsb/SEA06LA074.md): Central Copters Lancair IV-P · Belgrade, MT · Accident · No injuries · Limited investigation · Final report · Apr 15, 2006 · N671 · Destroyed
  > The total loss of drive power to the aircraft's propeller while on a visual final approach, due to the decoupling of the quill shaft between the reduction gearbox and the engine power section. Factors include a dark night, no suitable terrain on which to…

Next page: https://openairdocs.org/ntsb.md?state=MT&page=9

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb?page=8&state=MT

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.