# NTSB investigations: AiResearch TPE331 series, 1997

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 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 FTW97LA170](https://openairdocs.org/ntsb/FTW97LA170.md): Ayres S2R-G6 · El Dorado, AR · Accident · No injuries · Limited investigation · Final report · Apr 29, 1997 · N31575 · Substantial damage
  > The pilot misjudging his altitude above the airport, resulting in not attaining the proper touchdown point. A factor was the separation of teeth from the aft gear of the spur gear assembly, which resulted in the interruption of fuel.

## 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 year(c."eventDate") = 1997
  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&year=1997

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