# NTSB investigations: Allison 250-C30 series: Collision during takeoff/land

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 ERA26LA285](https://openairdocs.org/ntsb/ERA26LA285.md): Bell 206L-3 · Tuscumbia, AL · Accident · No injuries · Class 4 · Limited · Final report · Jul 29, 2026 · N29AE · Substantial damage
  > The pilot’s failure to keep the tail rotor clear of an obstacle while attempting to land.
- [NTSB CEN23LA350](https://openairdocs.org/ntsb/CEN23LA350.md): Bell 206 · Carthage, IL · Accident · No injuries · Class 3 · Limited · Final report · Aug 6, 2023 · N288AE · Substantial damage
  > A collision with a fence during landing due to the crew’s reduced distance estimation and depth perception while using night vision goggles. Contributing to the accident was the low moon angle, which made viewing the fence more challenging.
- [NTSB WPR21LA185](https://openairdocs.org/ntsb/WPR21LA185.md): Mcdonnell Douglas Heli 369FF · Palm Gardens, NV · Accident · No injuries · Class 4 · Limited · Final report · May 6, 2021 · N972BW · Substantial damage
  > The pilot’s failure to maintain helicopter control during an encounter with a dust devil shortly after takeoff.
- [NTSB CEN16CA393](https://openairdocs.org/ntsb/CEN16CA393.md): Bell 230 · Fargo, ND · Accident · No injuries · Data collection · Final report · Sep 30, 2016 · N903SH · Substantial damage
  > The pilot's failure to maintain clearance from the ground obstacle during the landing with gusting winds present.
- [NTSB CEN11CA232](https://openairdocs.org/ntsb/CEN11CA232.md): Bell 230 · Gulf of Mexico, LA · Accident · No injuries · Data collection · Final report · Mar 17, 2011 · N974RH · Substantial damage
  > The pilot's failure to maintain adequate clearance from the safety skirting during the repositioning landing.
- [NTSB CHI08FA141](https://openairdocs.org/ntsb/CHI08FA141.md): Sikorsky S-76A · Grand Rapids, MI · Accident · Serious injuries · Field investigation · Final report · May 29, 2008 · N176SH · Destroyed
  > The pilot's failure to maintain tail rotor obstacle clearance from a tower during takeoff.

## 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 ('03015')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '490'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/490/cases?engine=03015

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