# NTSB investigations: Allison 250-C30P

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 ERA23FA317](https://openairdocs.org/ntsb/ERA23FA317.md): Bell 206-L4 · Springfield, OH · Accident · 1 fatal · Class 3 · Field · Final report · Jul 29, 2023 · N652HA · Substantial damage
  > The pilot’s failure to remain clear of powerlines during an agricultural spraying operation.
- [NTSB ANC23FA056](https://openairdocs.org/ntsb/ANC23FA056.md): Bell 206-L4 · Wainwright, AK · Accident · 4 fatal · Class 3 · Field · Final report · Jul 20, 2023 · N311MH · Destroyed
  > The pilot's decision to fly at a low altitude over a large body of water toward featureless terrain, which resulted in a loss of visual clues and controlled flight into terrain.
- [NTSB ERA15LA374](https://openairdocs.org/ntsb/ERA15LA374.md): Bell 206 · Thomaston, GA · Accident · No injuries · Limited investigation · Final report · Sep 20, 2015 · N165BH · Destroyed
  > The loss of tail rotor control due to a fractured pin in the tail rotor control system; the reason the pin fractured could not be determined as the fractured pin was lost in shipping.
- [NTSB ERA14LA248](https://openairdocs.org/ntsb/ERA14LA248.md): Bell Helicopter Textron Canada 206 L4 · Beverly, MA · Accident · No injuries · Limited investigation · Final report · May 21, 2014 · N55SL · Substantial damage
  > Maintenance personnel’s inadequate inspection of the engine’s outer combustion case, which resulted in the failure of the case due to fatigue cracks that initiated on the inside surface of the case and the subsequent total loss of engine power.
- [NTSB NYC95LA142](https://openairdocs.org/ntsb/NYC95LA142.md): Bell 206-BIII · New York, NY · Accident · No injuries · Limited investigation · Final report · Jul 6, 1995 · N206GS · Substantial damage
  > The pilot' inadequate preflight inspection. A factor was the pilot's diverted attention.

## 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 ('03099'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03099

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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.