# NTSB investigations, 2006, 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.

## Latest cases

- [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…
- [NTSB SEA06CA073](https://openairdocs.org/ntsb/SEA06CA073.md): Cessna 170B · Havre, MT · Accident · No injuries · Data collection · Final report · Apr 10, 2006 · N2831C · Substantial damage
  > The pilot's improper starting procedures in attempting to hand-prop the airplane's engine. Contributing factors were the discharged battery, the failure of the right parking brake and the hangar which the aircraft collided with.
- [NTSB SEA06FA068](https://openairdocs.org/ntsb/SEA06FA068.md): Beech C99 · Butte, MT · Accident · 2 fatal · Field investigation · Final report · Mar 18, 2006 · N54RP · Substantial damage
  > The second pilot's failure to follow the published instrument approach procedure and the captain/PIC's inadequate supervision. Snow and mountain obscuration were factors.
- [NTSB SEA06LA052](https://openairdocs.org/ntsb/SEA06LA052.md): Robinson R44 · Helena, MT · Accident · 1 fatal · Limited investigation · Final report · Feb 6, 2006 · N7085U · Destroyed
  > The pilot's intentional suicide. The unauthorized use of a helicopter and impairment by alcohol were factors.

## 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 year(c."eventDate") = 2006
  AND 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?state=MT&year=2006

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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.