# Fatal NTSB investigations: Allison 250 SER 317HP

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 DFW05FA073](https://openairdocs.org/ntsb/DFW05FA073.md): Bell 206-L1 · Gentry, AR · Accident · 1 fatal · Field investigation · Final report · Feb 21, 2005 · N5734M · Substantial damage
  > The pilot’s improper decision to maneuver in an environment conducive to a loss of tail rotor effectiveness.
- [NTSB LAX00GA286](https://openairdocs.org/ntsb/LAX00GA286.md): Bell 206L-1 · Montello, NV · Accident · 1 fatal · Final report · Aug 4, 2000 · N10864 · Substantial damage
  > The loss of control in hovering flight and impact with terrain for undetermined reasons.
- [NTSB LAX84FA421](https://openairdocs.org/ntsb/LAX84FA421.md): Fairchild Hiller FH-1100 · Meadview, AZ · Accident · 3 fatal · Field investigation · Final report · Jul 29, 1984 · N711KH · Destroyed
  > Purpose of the flt was s sightseeing tour of lake mead, hoover dam and the western rim of the grand canyon. Before reaching the canyon the flt was to travel over a 5500 ft MSL ridge. The helicopter contacted a juniper tree at the bottom of a 3-sided canyon at…
- [NTSB MIA77FA031](https://openairdocs.org/ntsb/MIA77FA031.md): Bell 206-A · Jayuya, PR · Accident · 1 fatal · Closed · Feb 17, 1977 · N4046G · Destroyed

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03011'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03011&fatal=1

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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.