# NTSB investigations: Piper PA-20, 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 WPR26LA105](https://openairdocs.org/ntsb/WPR26LA105.md): Piper PA-20 · Three Forks, MT · Accident · No injuries · Class 4 · Limited · Final report · Feb 13, 2026 · N1491A · Substantial damage
  > The pilot’s failure to maintain directional during the landing roll with a variable wind.
- [NTSB GAA19CA408](https://openairdocs.org/ntsb/GAA19CA408.md): Piper PA 20 · Hamilton, MT · Accident · Minor injuries · Data collection · Final report · Jul 12, 2019 · N7409K · Substantial damage
  > The pilot's loss of directional control due to his unintentional use of brakes instead of the rudder during the landing roll, which resulted in a nose-over.
- [NTSB WPR09CA435](https://openairdocs.org/ntsb/WPR09CA435.md): Piper PA-20 · Bozeman, MT · Accident · No injuries · Data collection · Final report · Sep 5, 2009 · N1544A · Substantial damage
  > The failure of the pilot receiving instruction to maintain directional control during the takeoff roll and the flight instructor's delayed corrective action.
- [NTSB SEA04LA044](https://openairdocs.org/ntsb/SEA04LA044.md): Piper PA-20 · Laurel, MT · Accident · No injuries · Limited investigation · Final report · Feb 24, 2004 · N7321K · Substantial damage
  > The student pilot's failure to maintain aircraft control during the landing roll. Inadequate remedial action was a factor.
- [NTSB SEA01LA018](https://openairdocs.org/ntsb/SEA01LA018.md): Piper PA-20 · Great Falls, MT · Accident · No injuries · Limited investigation · Final report · Nov 12, 2000 · N1594A · Substantial damage
  > The pilot's improper decision to land on unsuitable terrain. Factors include snow covered terrain.
- [NTSB SEA78FTI20](https://openairdocs.org/ntsb/SEA78FTI20.md): Piper PA-20 · Deer Lodge, MT · Accident · No injuries · Closed · May 29, 1978 · N1514A · Substantial damage
- [NTSB SEA77FTA22](https://openairdocs.org/ntsb/SEA77FTA22.md): Piper PA-20 · Ismay, MT · Accident · No injuries · Closed · May 1, 1977 · N7635K · Substantial damage
- [NTSB SEA73FTI04](https://openairdocs.org/ntsb/SEA73FTI04.md): Piper PA-20 · Great Falls, MT · Accident · No injuries · Closed · Aug 7, 1972 · N1514A · Substantial damage

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7102002'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7102002&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.