# NTSB investigations, 2001, 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 SEA02LA019](https://openairdocs.org/ntsb/SEA02LA019.md): Cessna 310 · Sidney, MT · Accident · No injuries · Limited investigation · Final report · Dec 6, 2001 · N5043J · Substantial damage
  > The pilot's improper abort procedure and inadequate remedial action, leading to a loss of directional control after losing power in one engine during the takeoff roll. Factors include the loss of power from one engine, and a fence around the perimeter of the…
- [NTSB SEA02FA009](https://openairdocs.org/ntsb/SEA02FA009.md): Cessna 175C · Miles City, MT · Accident · 1 fatal · Field investigation · Final report · Nov 5, 2001 · N8347T · Substantial damage
  > The separation of the number four cylinder exhaust valve guide from the cylinder head, leading to the failure of the exhaust valve stem and the catastrophic failure of the engine while in cruise flight. Factors include the necessity of attempting a forced…
- [NTSB SEA02LA001](https://openairdocs.org/ntsb/SEA02LA001.md): Cessna 172 · Lindsay, MT · Accident · Serious injuries · Limited investigation · Final report · Oct 1, 2001 · N3910F · Destroyed
  > The pilot's failure to maintain an altitude clear of terrain. A factor was intentional low altitude flight.
- [NTSB SEA01TA172](https://openairdocs.org/ntsb/SEA01TA172.md): Bell 205 · Troy, MT · Accident · No injuries · Final report · Sep 17, 2001 · N458CC · Substantial damage
  > The pilot-in-command's failure to maintain seperation/clearance from trees while maneuvering.
- [NTSB SEA01MA163](https://openairdocs.org/ntsb/SEA01MA163.md): Kawasaki KV-107-II · Emigrant, MT · Accident · 3 fatal · Major investigation · Final report · Aug 31, 2001 · N186CH · Destroyed
  > The loss of control during cruise/climb flight for undetermined reasons.
- [NTSB SEA01LA148](https://openairdocs.org/ntsb/SEA01LA148.md): Piper PA-24-250 · Thompson Falls, MT · Accident · No injuries · Limited investigation · Final report · Aug 9, 2001 · N699WL · Substantial damage
  > The pilot's inadequate compensation in gusting wind conditions during the landing flare. A tree was a factor.
- [NTSB SEA01LA139](https://openairdocs.org/ntsb/SEA01LA139.md): Pilatus PC-6/B2-H4 · Great Falls, MT · Accident · No injuries · Limited investigation · Final report · Jul 21, 2001 · N2TS · Substantial damage
  > Pilot's failure to maintain directional control of the aircraft while landing.
- [NTSB SEA01LA133](https://openairdocs.org/ntsb/SEA01LA133.md): Piper PA-28R · Cut Bank, MT · Accident · Minor injuries · Limited investigation · Final report · Jul 10, 2001 · N8475C · Substantial damage
  > The pilot's failure to maintain a speed above stall velocity (Vs) during the after-takeoff climb. Factors include a high density altitude, and a dust devil/whirlwind located along the route of departure.
- [NTSB SEA01LA128](https://openairdocs.org/ntsb/SEA01LA128.md): Tibert Baby Lakes · Stevensville, MT · Accident · No injuries · Limited investigation · Final report · Jul 7, 2001 · N94AT · Substantial damage
  > The pilot's failure to maintain directional control of the tailwheel-equipped aircraft during the landing roll. Factors include the pilot's low total time in this make and model aircraft and his lack of recent experience in this make and model aircraft.
- [NTSB SEA01LA124](https://openairdocs.org/ntsb/SEA01LA124.md): Piper PA-22 · Lewistown, MT · Accident · No injuries · Limited investigation · Final report · Jul 1, 2001 · N3251Z · Substantial damage
  > Pilot's failure to maintain directional control of the aircraft while landing.
- [NTSB SEA01LA122](https://openairdocs.org/ntsb/SEA01LA122.md): Piper PA-38-112 · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Jun 27, 2001 · N9341T · 2 aircraft · Substantial damage
  > The pilot of another aircraft failed to maintain clearance while maneuvering for a formation flight. An updraft was a factor.
- [NTSB SEA01LA117](https://openairdocs.org/ntsb/SEA01LA117.md): Piper PA-18 · Billings, MT · Accident · No injuries · Limited investigation · Final report · Jun 11, 2001 · N83464 · Substantial damage
  > The pilot-in-command's failure to maintain directional control of the aircraft during the landing roll. A contributing factor was the gusty crosswind conditions.
- [NTSB SEA01LA107](https://openairdocs.org/ntsb/SEA01LA107.md): Herriford RAF 2000 · Gardiner, MT · Accident · No injuries · Limited investigation · Final report · May 30, 2001 · N2361S · Substantial damage
  > the pilot's failure to rotate the aircraft until he was well past the normal takeoff rotation speed, and his abrupt rotation at this higher speed.
- [NTSB SEA01FA106](https://openairdocs.org/ntsb/SEA01FA106.md): Piper PA-12 · Augusta, MT · Accident · 1 fatal · Field investigation · Final report · May 28, 2001 · N2564M · Destroyed
  > The pilot's failure to maintain adequate airspeed after takeoff resulting in an inadvertent stall at low a altitude.
- [NTSB SEA01LA058](https://openairdocs.org/ntsb/SEA01LA058.md): Avia Stroitel AC-5m · Bozeman, MT · Accident · Serious injuries · Limited investigation · Final report · Mar 4, 2001 · N1635M · Substantial damage
  > the pilot's improper remedial action upon experiencing the unexpected opening of the aircraft's canopy during the initial part of the takeoff climb. Factors include his attention being diverted to the open canopy, his failure to use a checklist to ensure he…
- [NTSB SEA01LA052](https://openairdocs.org/ntsb/SEA01LA052.md): Cessna 402B · Billings, MT · Accident · No injuries · Limited investigation · Final report · Feb 20, 2001 · N69316 · Substantial damage
  > Best rate-of-climb single-engine speed was not maintained. Delayed remedial action was a factor.
- [NTSB SEA01LA047](https://openairdocs.org/ntsb/SEA01LA047.md): Piper PA-12 · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Feb 8, 2001 · N7940H · Substantial damage
  > The pilot rated passenger's failure to maintain directional control during the landing. A factor was the snow berm which the aircraft rolled into during the landing.
- [NTSB SEA01LA046](https://openairdocs.org/ntsb/SEA01LA046.md): Western International UH-1H · Darby, MT · Accident · 1 fatal · Limited investigation · Final report · Feb 7, 2001 · N205GL · Substantial damage
  > Inflight loss of a tail rotor pitch change link-to-blade grip attach bolt, resulting partial loss of tail rotor control, and subsequent entanglement of the helicopter's external load cable with a tree during emergency descent. Factors included the pilot's…

## 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") = 2001
  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=2001

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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.