# NTSB investigations: AiResearch TPE331 series, WA

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 WPR11FA159](https://openairdocs.org/ntsb/WPR11FA159.md): Fairchild SA227-AC · Seattle, WA · Accident · No injuries · Field investigation · Final report · Mar 11, 2011 · N671AV · Substantial damage
  > The pilot's failure to extend the landing gear, which resulted in a gear-up landing.
- [NTSB SEA04FA023](https://openairdocs.org/ntsb/SEA04FA023.md): Fairchild Swearingen SA227-AT · Spokane, WA · Accident · 1 fatal · Field investigation · Final report · Nov 29, 2003 · N439AF · Destroyed
  > The pilot-in-command's failure to maintain proper glidepath alignment during an ILS approach in poor weather resulting in collision with trees and terrain. Contributing factors were the unreliable status of the primary (NAV 1) ILS receiver (leaving the pilot…
- [NTSB SEA98FA023](https://openairdocs.org/ntsb/SEA98FA023.md): Aero Commander 690A · Yakima, WA · Accident · 2 fatal · Field investigation · Final report · Dec 13, 1997 · N72VF · Destroyed
  > A loss of aircraft control for undetermined reasons.
- [NTSB SEA90IA085](https://openairdocs.org/ntsb/SEA90IA085.md): Fairchild SA227 · Olympia, WA · Incident · Minor injuries · Incident investigation · Final report · May 23, 1990 · N27442 · Minor damage
  > Due to an ice build-up departing the propeller and striking the cabin window.

## 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" = 'WA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('01514', '01517'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01514&state=WA

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