# NTSB investigations: Allison 250 SER 400HP: In flight encounter with weather

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 LAX04FA329](https://openairdocs.org/ntsb/LAX04FA329.md): Bell 206B · Kalaheo, HI · Accident · 5 fatal · Class 1 · Field · Final report · Sep 25, 2004 · N16849 · Destroyed
  > The pilot's decision to continue flight under visual flight rules into an area of turbulent, reduced visibility weather conditions, which resulted in the pilot's spatial disorientation and loss of control of the helicopter. Contributing to this accident was…
- [NTSB FTW04FA168](https://openairdocs.org/ntsb/FTW04FA168.md): Bell 206-L1 · Vermillion Bay, LA · Accident · 3 fatal · Field investigation · Final report · Jun 24, 2004 · N5006F · Destroyed
  > The pilot's continued flight into adverse weather conditions resulting in a loss of control. Contributing factors were the prevailing thunderstorms and the pilot's inadequate in flight preparation and planning.
- [NTSB LAX03FA241](https://openairdocs.org/ntsb/LAX03FA241.md): Bell 206B · Waialeale,Kauai, HI · Accident · 5 fatal · Field investigation · Final report · Jul 23, 2003 · N37741 · Destroyed
  > The pilot's failure to maintain adequate terrain clearance/altitude while descending over mountainous terrain, and his continued flight into adverse weather. Factors contributing to the accident were clouds and a low ceiling.
- [NTSB FTW90LA095](https://openairdocs.org/ntsb/FTW90LA095.md): Hughes 369HS · Junction, TX · Accident · No injuries · Limited investigation · Final report · Apr 15, 1990 · N9138F · Substantial damage
  > The pilot in command's inadequate execution of the autorotation following a engine failure which resulted from his failure to refuel the aircraft with the proper grade of fuel when he ran short during the flight.
- [NTSB DEN89FA101](https://openairdocs.org/ntsb/DEN89FA101.md): Bell 206B-III · Park City, UT · Accident · No injuries · Field investigation · Final report · Apr 5, 1989 · N16733 · Substantial damage
  > An encounter with strong down-slope winds and gusts during a critiacal phase of flight which caused power required to exceed power available. Contributing factors to the accident was the downhill terrain and the downdraft conditions.
- [NTSB SEA88LA016](https://openairdocs.org/ntsb/SEA88LA016.md): Hiller FH-1100 · Turner, OR · Accident · No injuries · Limited investigation · Final report · Nov 12, 1987 · N35HA · Substantial damage
  > While on a short cross country flight the pilot encountered a rain storm and low clouds. The pilot made a 180 degree turn and then elected to make a precautionary landing in a field. Although the pilot visually inspected the area prior to landing, he did not…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03013&occurrence=240

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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.