# NTSB investigations, MT: Aircraft structural failure

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 WPR22FA169](https://openairdocs.org/ntsb/WPR22FA169.md): Bearhawk LSA · Kalispell, MT · Accident · 2 fatal · Class 3 · Field · Final report · Apr 30, 2022 · N1908A · Substantial damage
  > An excessive pitch control input for undetermined reasons while the airplane was operating above maneuvering speed, which led to a structural failure of the right wing during cruise flight. Contributing to the accident was the poor construction quality of the…
- [NTSB GAA16CA080](https://openairdocs.org/ntsb/GAA16CA080.md): Aviat A1 · Broadus, MT · Accident · Minor injuries · Data collection · Final report · Dec 13, 2015 · N29712 · Substantial damage
  > The pilot's failure to maintain clearance from the wires while flying at a low altitude resulting in a wire strike, a loss of airplane control, and the consequent impact with terrain.
- [NTSB WPR14LA238](https://openairdocs.org/ntsb/WPR14LA238.md): Skykits Savannah VGW · Helena, MT · Accident · No injuries · Limited investigation · Final report · Jun 7, 2014 · N472WM · Substantial damage
  > The overload failure of the nosewheel fork retaining bolts during landing, which resulted in a nose-over.

## 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" = '337' 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/337/sequence?state=MT

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