# NTSB investigations: Allison 250-C28 series: Loss of control - in flight

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 DFW08FA053](https://openairdocs.org/ntsb/DFW08FA053.md): Bell 206L1 · Venice, LA · Accident · 1 fatal · Field investigation · Final report · Dec 29, 2007 · N211EL · Destroyed
  > The pilot’s decision to continue to the destination landing platform in weather conditions below the company’s weather minimums and his failure to maintain aircraft control during the approach. Contributing to the passenger fatality and the severity of the…
- [NTSB CHI06FA110](https://openairdocs.org/ntsb/CHI06FA110.md): Messerschmitt-Bolkow-Blohm BO 105LS A-3 · Green Bay, WI · Accident · 1 fatal · Field investigation · Final report · Apr 13, 2006 · N202LF · Substantial damage
  > The pilot's inadequate preflight check of the flight controls prior to takeoff and the directional contol not possible by the pilot. Additional causes were the improper installation of the anti-torque pedal cover by company personnel which blocked the flight…
- [NTSB CHI03FA056](https://openairdocs.org/ntsb/CHI03FA056.md): Bell 206L-1 · B.S. 53, LA · Accident · 1 fatal · Field investigation · Final report · Jan 16, 2003 · N3194P · Destroyed
  > The improper approach by the pilot and the settling with power encountered by the pilot.
- [NTSB CHI02FA288](https://openairdocs.org/ntsb/CHI02FA288.md): Bell 206L-1 · Doland, SD · Accident · 4 fatal · Field investigation · Final report · Sep 10, 2002 · N400SL · Destroyed
  > Pilot spatial disorientation while flying in dark night conditions, resulting in a loss of aircraft control; and the company's inadequate remedial actions after identifying the pilot's night flying deficiency over areas without lighted references. A factor to…
- [NTSB DEN02LA044](https://openairdocs.org/ntsb/DEN02LA044.md): Bell 206L-1 · Salem, UT · Accident · Serious injuries · Limited investigation · Final report · May 18, 2002 · N3894Q · Substantial damage
  > a loss of tail rotor effectiveness during takeoff. A contributing factor was the wind gusts.
- [NTSB CHI88FA079](https://openairdocs.org/ntsb/CHI88FA079.md): Bell 206L-1 · Taylorville, IL · Accident · Serious injuries · Field investigation · Final report · Mar 18, 1988 · N5759H · Destroyed
  > The helicopter experienced a loss of control while in slow flight out of ground effect. The helicopter impacted the ground in a black plowed field during a period of low visibility due to snow. The occurrence happened in a remote area with few ground…
- [NTSB LAX83FA420](https://openairdocs.org/ntsb/LAX83FA420.md): Hughes 369HS · Ventura, CA · Accident · 1 fatal · Field investigation · Final report · Sep 4, 1983 · N8500N · Destroyed
  > The helicopter was observed descending 'straight down' & 'nose first.' The wreckage was located about 200 yds offshore in about 30 ft of water. Witnesses stated that it was dark & hazy. They were able to see the acft lights, but not the stars. The plt 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 ('03022', '03021')
    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" = 250))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03022&occurrence=250

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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.