# NTSB investigations: Allison 250 SER 400HP, AL

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 GAA15LA296](https://openairdocs.org/ntsb/GAA15LA296.md): Bell 206 · Ozark, AL · Accident · No injuries · Limited investigation · Final report · Sep 24, 2015 · N49660 · Substantial damage
  > The pilot's failure to maintain clearance from terrain while hovering, which resulted in the helicopter's skid impacting terrain, subsequent abnormal airframe vibrations, and a hard landing during the subsequent hovering autorotation.
- [NTSB ERA15FA178](https://openairdocs.org/ntsb/ERA15FA178.md): Hughes 369D · Cherokee, AL · Accident · 1 fatal · Field investigation · Final report · Apr 6, 2015 · N555JC · Substantial damage
  > The pilot's spatial disorientation during a low-level river crossing in rainy, gray, reduced visibility meteorological conditions, which resulted in the helicopter's subsequent descent and impact with the water. Contributing to the accident was the pilot's…
- [NTSB ATL93FA127](https://openairdocs.org/ntsb/ATL93FA127.md): Hughes 369HS · Talladega, AL · Accident · 1 fatal · Field investigation · Final report · Jul 12, 1993 · N9116F · Substantial damage
  > The pilot's poor in-flight decision to land downwind in a confined area that was surrounded by high obstructions, and his failure to properly compensate for the tailwind condition. A factor related to the accident was: the pilot's lack of total experience in…

## 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" = 'AL' 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 ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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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.