# NTSB investigations: Allison 250 SER 250HP: 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 ANC99TA029](https://openairdocs.org/ntsb/ANC99TA029.md): Bell 206L-1 · Barrow, AK · Accident · Minor injuries · Final report · Feb 24, 1999 · N785SR · Substantial damage
  > The pilot's misjudged flare while landing. Factors associated with the accident were whiteout conditions, and the snow-covered terrain.
- [NTSB ANC96LA154](https://openairdocs.org/ntsb/ANC96LA154.md): Bell 206B · Cantwell, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 13, 1996 · N7982J · Destroyed
  > the pilot's continued VFR flight into instrument meteorological conditions (IMC). The terrain conditions, low ceiling, fog, and whiteout conditions were related factors.
- [NTSB SEA93FA048](https://openairdocs.org/ntsb/SEA93FA048.md): Bell 206B3 · Ogden, UT · Accident · 4 fatal · Field investigation · Final report · Jan 3, 1993 · N1078V · Destroyed
  > The pilot's continuation of VFR flight into instrument meteorological conditions, and his decision to continue his landing attempts under the adverse weather conditions. Factors contributing to the accident were the low clouds, fog and mountainous terrain.
- [NTSB ATL87MA035](https://openairdocs.org/ntsb/ATL87MA035.md): Bell 206L-1 · Jamestown, TN · Accident · 4 fatal · Major investigation · Final report · Dec 3, 1986 · N3898U · Destroyed
  > The helicopter was being used in an emerg med svc/med-evac (EMS) opn. At 0230, the plt obtained a partial wx briefing. He was advised of flt prctns for IFR wx thru-out the area with low ceilings, fog, precip & mtns obscd. The flt departed nashville at 0245 &…
- [NTSB FTW85LA089](https://openairdocs.org/ntsb/FTW85LA089.md): Bell 206L-1 · Houma, LA · Accident · No injuries · Limited investigation · Final report · Dec 28, 1984 · N1075Y · Substantial damage
  > The plt departed into known bad wx with low ceilings and poor visibility. Very shortly after takeoff the plt elected to return to the arpt. During a descending right turn the plt broke out of IMC at a very low altitude. He pulledcollective but still landed…
- [NTSB DEN84FA038](https://openairdocs.org/ntsb/DEN84FA038.md): Bell 206B · Ft. Morgan, CO · Accident · Serious injuries · Field investigation · Final report · Dec 3, 1983 · N1078V · Substantial damage
  > The helicopter was owned & operated by a tv station & was being used for transportation to a news event. While en route, clouds & reduced visibility due to fog were encountered. The plt elected to land in a field covered with powdered snow. During the…
- [NTSB FTW84LA081](https://openairdocs.org/ntsb/FTW84LA081.md): Bell 206L-1 · Ardmore, OK · Accident · Minor injuries · Limited investigation · Final report · Dec 2, 1983 · N2005A · Substantial damage
  > The plt stated that before he took off from Oklahoma city, OK, he called the Oklahoma city fss & obtained a wx briefing. The briefing called for light rain showers, minimum ceiling of 1800 ft, visibility of 3 to 5 miles & no chance of fog, except in low lying…
- [NTSB FTW83FA066](https://openairdocs.org/ntsb/FTW83FA066.md): Bell 206B · San Antonio, TX · Accident · 3 fatal · Field investigation · Final report · Dec 23, 1982 · N206H · Destroyed
  > The acft departed brackettville at 0715 & at 0740 contacted uvalde UNICOM for their wx. When informed that uvalde was "zero-zero" the flt continued east. The acft was later observed & heard flying above the low indefinite ceiling shortly before impacting the…
- [NTSB DEN83LA022](https://openairdocs.org/ntsb/DEN83LA022.md): Bell 206B · Near Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Nov 21, 1982 · N5011G · Substantial damage
  > Acft departed hospital at missoula in good wx to assist highway accident victim 5 mi east of clinton. Victim was placed aboard helicopter on stretcher for emergency flight to hospital. About 5-6 mi east of missoula plt noticed light snow falling & observed a…

## 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 ('03002', '03003')
    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=03002&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.