# NTSB investigations, MT: Gear not extended

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 SEA93LA027](https://openairdocs.org/ntsb/SEA93LA027.md): Swearingen SA-226TC · Billings, MT · Accident · No injuries · Limited investigation · Final report · Nov 21, 1992 · N139PA · Substantial damage
  > Failure of a gear door roller, which necessitated a gear up landing. Factors include inadequate lubrication.
- [NTSB SEA91LA214](https://openairdocs.org/ntsb/SEA91LA214.md): Beech 58TC · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Aug 17, 1991 · N350TH · Substantial damage
  > The pilot's failure to extend the landing gear. A factor contributing to the accident was the pilot's failure to identtify a down and locked landing gear condition prior to touchdown.

## 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 196)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=196&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.