# NTSB investigations: Allison 250 SER 250HP, AZ

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 WPR17LA019](https://openairdocs.org/ntsb/WPR17LA019.md): Bell 206B · Yuma, AZ · Accident · Serious injuries · Limited investigation · Final report · Nov 11, 2016 · N914HH · Substantial damage
  > The pilot’s inability to maintain helicopter control after its skid got caught on the landing pad while he was maneuvering the helicopter to land on it, which resulted in a dynamic roll-over.
- [NTSB WPR13LA390](https://openairdocs.org/ntsb/WPR13LA390.md): Bell Helicopter Textron 206L-1 · Payson, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 28, 2013 · N2018R · Substantial damage
  > A partial loss of engine power due to an overtemperature event that thermally damaged the turbine blades and vanes, which resulted in a hard landing.
- [NTSB WPR13CA206](https://openairdocs.org/ntsb/WPR13CA206.md): Bell Helicopter Textron 206L-1 · Grand Canyon, AZ · Accident · No injuries · Data collection · Final report · Apr 23, 2013 · N2072M · Substantial damage
  > The failure of the flight instructor and the pilot receiving instruction to recognize before entering the flare that the wind had shifted to a tailwind and terminate the practice autorotation.
- [NTSB WPR12LA408](https://openairdocs.org/ntsb/WPR12LA408.md): Bell Helicopter Textron 206L-1 · Grand Canyon, AZ · Accident · No injuries · Limited investigation · Final report · Sep 9, 2012 · N5745Y · Substantial damage
  > A total loss of engine power during descent for reasons that could not be determined because postaccident engine examinations and testing revealed no evidence of an anomaly that would have precluded normal operation.
- [NTSB LAX02LA178](https://openairdocs.org/ntsb/LAX02LA178.md): Bell 206L-1 · Meadview, AZ · Accident · Minor injuries · Limited investigation · Final report · May 28, 2002 · N1075S · Destroyed
  > the pilot's failure to maintain distance and altitude during landing approach, resulting in the helicopter striking the ground during approach.
- [NTSB LAX01LA013](https://openairdocs.org/ntsb/LAX01LA013.md): Bell 206L-1 · Grand Canyon, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 14, 2000 · N2233F · Substantial damage
  > The pilot's in-flight loss of control during liftoff due to his improper planning and decisions. Related factors were the high density altitude and helicopter weight condition, and the lack of a suitable takeoff area.
- [NTSB LAX85FA315](https://openairdocs.org/ntsb/LAX85FA315.md): Bell 206-B · Page, AZ · Accident · 2 fatal · Field investigation · Final report · Jul 12, 1985 · N38942 · Destroyed
  > On July 12, 1984, a Bell 206B helicopter collided with a steel bridge 10 miles so of Page, AZ. The helicopter was being filmed in flt during the making of a movie. VMC existed at the time. The helicopter was destroyed and the plt and pax, an italian actor,…
- [NTSB LAX80FUJ65](https://openairdocs.org/ntsb/LAX80FUJ65.md): Bell 206B · Supai, AZ · Accident · No injuries · Closed · May 4, 1980 · N74PR · Substantial damage
- [NTSB LAX72DUK14](https://openairdocs.org/ntsb/LAX72DUK14.md): Hiller Acft FH1100 · Marana, AZ · Accident · No injuries · Closed · Jun 28, 1972 · N425FH · Substantial damage

## 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" = 'AZ' 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 ('03002', '03003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03002&state=AZ

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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.