# NTSB investigations: Allison 250-C20 series, 2009

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 ERA10LA032](https://openairdocs.org/ntsb/ERA10LA032.md): Bell 206 · Eupora, MS · Accident · Serious injuries · Limited investigation · Final report · Oct 25, 2009 · N57PH · Destroyed
  > A loss of engine power due to fuel contamination of the helicopter’s fuel supply.
- [NTSB WPR10TA025](https://openairdocs.org/ntsb/WPR10TA025.md): Mcdonnell Douglas Helicopter 500N · Los Alamitos, CA · Accident · No injuries · Final report · Oct 16, 2009 · N521HB · Substantial damage
  > The flight instructor's delayed remedial action during the instructional autorotative landing, which resulted in a failure to maintain an adequate rotor rpm to avoid a hard landing.
- [NTSB CEN09LA571](https://openairdocs.org/ntsb/CEN09LA571.md): Messerschmitt-Boelkow-Blohm BO-105S · Thibodaux, LA · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 2009 · N131EH · Substantial damage
  > The pilot's inability to maintain control due to the mechanic's inadvertent switching of two cyclic control tubes of different lengths during maintenance.
- [NTSB ERA09LA460](https://openairdocs.org/ntsb/ERA09LA460.md): Mcdonnell Douglas Helicopter 369E · Acworth, GA · Accident · Serious injuries · Limited investigation · Final report · Aug 12, 2009 · N527BB · Substantial damage
  > The loss of engine power due to the fatigue failure of the third-stage turbine wheel airfoil.
- [NTSB ERA09FA414](https://openairdocs.org/ntsb/ERA09FA414.md): Hughes 369 · Franklin, PA · Accident · 1 fatal · Field investigation · Final report · Jul 22, 2009 · N61735 · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement.
- [NTSB WPR09CA338](https://openairdocs.org/ntsb/WPR09CA338.md): Bell 206B · Burlington, WA · Accident · No injuries · Data collection · Final report · Jul 11, 2009 · N302PD · Substantial damage
  > The pilot’s failure to maintain control of the helicopter while attempting to lift off from a trailer. The helicopter subsequently impacted the ground and rolled over.
- [NTSB CEN09CA275](https://openairdocs.org/ntsb/CEN09CA275.md): Bell 407 · High Island 138 · Accident · No injuries · Data collection · Final report · May 4, 2009 · N164RL · Substantial damage
  > The pilot's failure to maintain clearance from the windsock during the approach.
- [NTSB WPR09LA244](https://openairdocs.org/ntsb/WPR09LA244.md): Hughes 369HS · Pacific Ocean (Pacific Ocean) · Accident · No injuries · Limited investigation · Final report · Apr 5, 2009 · N2058X · Substantial damage
  > The pilot’s failure to maintain clearance from an object during takeoff from the deck of a fishing vessel.
- [NTSB CEN09IA222](https://openairdocs.org/ntsb/CEN09IA222.md): Bell 206 · Springfield, IL · Incident · No injuries · Incident investigation · Final report · Mar 17, 2009 · N595AE · Minor damage
  > The pilot's failure to maintain clearance from the parked helicopter.
- [NTSB ERA09WA183](https://openairdocs.org/ntsb/ERA09WA183.md): Bell 206B · St. Maarten, NT · Accident · No injuries · Foreign investigation · Mar 4, 2009 · N83086 · Substantial damage
  > None.

## 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 year(c."eventDate") = 2009
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03020&year=2009

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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.