# NTSB investigations, MT: Miscellaneous/other

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 WPR25LA047](https://openairdocs.org/ntsb/WPR25LA047.md): Cessna A185F · Lewistown, MT · Accident · No injuries · Class 4 · Limited · Final report · Nov 23, 2024 · N9533H · Substantial damage
  > The pilot’s inadvertent impact with a rock during a landing on a grass strip.
- [NTSB ENG24LA012](https://openairdocs.org/ntsb/ENG24LA012.md): British Aerospace BAE 146 Series 200A · Missoula, MT · Incident · Class 3 · Limited · Final report · Mar 1, 2024 · N474NA · 2 aircraft · Minor damage
  > The use of a new long term fire retardant with a chemical composition incompatible with the retardant previously in use for the integration-operational field evaluation without adequate testing and qualification.
- [NTSB WPR20LA278](https://openairdocs.org/ntsb/WPR20LA278.md): Piper PA28 · Harlowton, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 14, 2020 · N317LB · Substantial damage
  > The pilot’s failure to follow the appropriate takeoff procedures, which resulted in a collision with terrain.
- [NTSB WPR20CA066](https://openairdocs.org/ntsb/WPR20CA066.md): Piper PA 23 · Helena, MT · Accident · No injuries · Data collection · Final report · Jan 8, 2020 · N1428P · Substantial damage
  > The pilot's improper decision to attempt an off-airport departure from rough terrain without inspecting the takeoff area, which resulted in a collision with a shallow rut during takeoff and the nose landing gear collapsing.
- [NTSB GAA18CA533](https://openairdocs.org/ntsb/GAA18CA533.md): Taylorcraft BC12 · Cut Bank, MT · Accident · Minor injuries · Data collection · Final report · Sep 5, 2018 · N95514 · Substantial damage
  > The 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.
- [NTSB WPR18LA145](https://openairdocs.org/ntsb/WPR18LA145.md): Sportavia Putzer RF5B Sperber · Lookout Pass, MT · Accident · Minor injuries · Limited investigation · Final report · May 22, 2018 · N66GL · Substantial damage
  > The pilot’s improper decision to continue flight toward rising terrain after the engine overheated, which necessitated a precautionary landing when the motorglider could not maintain altitude in downdrafts.
- [NTSB GAA17CA434](https://openairdocs.org/ntsb/GAA17CA434.md): Robinson Helicopter R22 · Bozeman, MT · Accident · No injuries · Data collection · Final report · Jul 21, 2017 · N28VH · Substantial damage
  > The flight instructor’s unstabilized autorotation, which resulted in a hard landing.
- [NTSB WPR17LA064](https://openairdocs.org/ntsb/WPR17LA064.md): Beech A36TC · Stevensville, MT · Accident · Minor injuries · Limited investigation · Final report · Feb 23, 2017 · N3803J · Substantial damage
  > The pilot's decision to conduct a takeoff with a tailwind on an upsloping runway in an overweight airplane, which resulted in the airplane having insufficient energy to climb out of ground effect.
- [NTSB GAA16CA406](https://openairdocs.org/ntsb/GAA16CA406.md): Cessna 177 · Kalispell, MT · Accident · No injuries · Data collection · Final report · Jul 31, 2016 · N30550 · Substantial damage
  > The airplane's hard landing during an aborted takeoff, following an encounter with a downdraft during takeoff initial climb from a remote mountain airstrip, resulting in an uncontrolled descent, attempt to land on the runway remaining, and subsequent nose…
- [NTSB WPR12CA284](https://openairdocs.org/ntsb/WPR12CA284.md): Cessna 210-5 · West Glacier, MT · Accident · Minor injuries · Data collection · Final report · Jul 2, 2012 · N8450Z · Substantial damage
  > The pilot elected to abort the takeoff without sufficient runway available to land and stop the airplane. Contributing to the accident was the illusion created by the rising terrain, which influenced the pilot's decision to abort the takeoff.

## 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'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '900' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/900/sequence?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.