# NTSB investigations: Allison 250 SER 250HP, OR

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 WPR21LA333](https://openairdocs.org/ntsb/WPR21LA333.md): Bell Helicopter Textron 206L-1 · Glide, OR · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 27, 2021 · N303AE · Substantial damage
  > The pilot’s failure to maintain clearance from a tree during an aerial application.
- [NTSB WPR12LA036](https://openairdocs.org/ntsb/WPR12LA036.md): Bell 206B · Woodburn, OR · Accident · Serious injuries · Limited investigation · Final report · Nov 14, 2011 · N16HA · Substantial damage
  > The pilot’s failure to maintain ground clearance while maneuvering with an external load line.
- [NTSB SEA04LA005](https://openairdocs.org/ntsb/SEA04LA005.md): Bell 206B · Swisshome, OR · Accident · 2 fatal · Limited investigation · Final report · Oct 14, 2003 · N86W · Substantial damage
  > The pilot's failure to maintain clearance from power lines while maneuvering. The power line, mountainous terrain with high obstructions (thick trees and underbrush) and the operators failure to maintain a "hazard map" as indicated in their procedures manual…
- [NTSB SEA02LA135](https://openairdocs.org/ntsb/SEA02LA135.md): McDonnell Douglas 369D · Medford, OR · Accident · Serious injuries · Limited investigation · Final report · Jul 22, 2002 · N58295 · Substantial damage
  > Power loss during cruise flight for undetermined reasons. Factors include mountainous terrain and trees.
- [NTSB SEA97LA029](https://openairdocs.org/ntsb/SEA97LA029.md): Bell 206B3 · Ballston, OR · Accident · Serious injuries · Limited investigation · Final report · Nov 19, 1996 · N921RB · Substantial damage
  > a loss of control for undetermined reasons.
- [NTSB SEA96LA070](https://openairdocs.org/ntsb/SEA96LA070.md): Bell 206B · La Grande, OR · Accident · Minor injuries · Limited investigation · Final report · Mar 18, 1996 · N57362 · Substantial damage
  > the pilot's failure to maintain clearance with trees after pulling up from an aerial application spray run.
- [NTSB SEA95LA023](https://openairdocs.org/ntsb/SEA95LA023.md): Fairchild Hiller FH-1100 · Yamhill, OR · Accident · Serious injuries · Limited investigation · Final report · Nov 19, 1994 · N4258V · Substantial damage
  > Failure of the pilot to maintain adequate altitude/clearance, while maneuvering to a hover, which allowed the external load cable/hook to become snagged and to rebound into the path of the main rotor blades.
- [NTSB SEA91LA023](https://openairdocs.org/ntsb/SEA91LA023.md): Hughes 369D · Mulina, OR · Accident · No injuries · Limited investigation · Final report · Nov 26, 1990 · N1106Z · Substantial damage
  > In-flight collision with a rebounding long-line, which caused main-rotor RPM decay and tail-boom separation, compromising the pilot's ability to successfully accomplish an attempted autorotation.
- [NTSB SEA88FA050](https://openairdocs.org/ntsb/SEA88FA050.md): Bell 206A · Roseburg, OR · Accident · Serious injuries · Field investigation · Final report · Feb 18, 1988 · N7981J · Substantial damage
  > While hovering at 200' AGL, the eng lost power & the plt entered an autorotation. He maneuvered to avoid trees & landed amid tree stumps in a logging clear cut area. An investigation revealed the 1st stage turbine wheel had failed. The wheel exited the eng &…
- [NTSB SEA83FA040](https://openairdocs.org/ntsb/SEA83FA040.md): Bell 206B · Newport, OR · Accident · No injuries · Field investigation · Final report · Jan 12, 1983 · N644PH · Substantial damage
  > The helicopter was lifting off when the left skid stuck in the dirt. The acft did a dynamic rollover when the left skid remained stuck as the pilot attempted to takeoff. The pilot had just on-loaded two passengers both on the left side. Weather was not a…
- [NTSB SEA82FYM16](https://openairdocs.org/ntsb/SEA82FYM16.md): Hughes 369D · Birkenfeld, OR · Accident · Minor injuries · Final report · May 19, 1982 · N1096L · Substantial damage
  > The pilot stated that the fuel gauge indicated 150 lbs of fuel remaining when he began the flight. Since the drop point was within 2 to 3 minutes of the departure point, he elected to proceed without refueling. While hovering and being guided into the drop…
- [NTSB SEA78FYM33](https://openairdocs.org/ntsb/SEA78FYM33.md): Bell 206B · Tillamook, OR · Accident · Serious injuries · Closed · May 15, 1978 · N4ZH · Destroyed
- [NTSB SEA74DYI01](https://openairdocs.org/ntsb/SEA74DYI01.md): Hiller FH1100 · Cave Jctn, OR · Accident · No injuries · Closed · Jul 9, 1973 · N427FH · 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" = 'OR' 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=OR

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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.