# NTSB investigations: Allison 250 SER 400HP, 1981

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 LAX82DUM05](https://openairdocs.org/ntsb/LAX82DUM05.md): Hughes 369 · Winterhaven, CA · Accident · Minor injuries · Closed · Dec 4, 1981 · N58184 · Destroyed
- [NTSB DEN82DTM06](https://openairdocs.org/ntsb/DEN82DTM06.md): Bell 206B · Fruitland, UT · Accident · No injuries · Closed · Dec 3, 1981 · N4717R · Substantial damage
- [NTSB DEN82FTI02](https://openairdocs.org/ntsb/DEN82FTI02.md): Bell 206B · Whitehall, MT · Accident · No injuries · Closed · Oct 25, 1981 · N90142 · Substantial damage
- [NTSB FTW81FRD27](https://openairdocs.org/ntsb/FTW81FRD27.md): Bell 206B · Plaquemire, LA · Accident · Minor injuries · Closed · Jun 3, 1981 · N90332 · Destroyed
- [NTSB ANC81FA055](https://openairdocs.org/ntsb/ANC81FA055.md): Hughes 369D · Glennallen, AK · Accident · Minor injuries · Closed · May 25, 1981 · N211EH · Substantial damage
- [NTSB LAX81DVA27](https://openairdocs.org/ntsb/LAX81DVA27.md): Hughes 369D · Madera, CA · Accident · No injuries · Closed · Mar 9, 1981 · N8681F · 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 year(c."eventDate") = 1981
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03013&year=1981

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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.