# NTSB investigations: Turbomeca ARRIEL-2B1: Hard landing

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 ERA26LA026](https://openairdocs.org/ntsb/ERA26LA026.md): Eurocopter AS350 · Wetumpka, AL · Accident · No injuries · Class 4 · Limited · Final report · Oct 23, 2025 · N545HF · Substantial damage
  > The pilot’s improper recovery from a practice autorotation, which resulted in a hard landing. Contributing to the accident was the flight instructor’s inadequate supervision of the pilot receiving instruction.
- [NTSB WPR25LA189](https://openairdocs.org/ntsb/WPR25LA189.md): American Eurocopter AS350B3 · San Luis, AZ · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2025 · N3951A · Substantial damage
  > The pilot receiving instruction’s failure to properly recover the helicopter during an autorotative landing and the instructor pilot’s failure to intervene, which resulted in a hard landing.
- [NTSB ERA21LA390](https://openairdocs.org/ntsb/ERA21LA390.md): Eurocopter AS 350 B3 · Kinston, NC · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2021 · N370NC · Substantial damage
  > The buckling of the tail boom as a result of a hard landing event of undetermined time and location.
- [NTSB GAA18CA070](https://openairdocs.org/ntsb/GAA18CA070.md): Eurocopter AS 350 · Santa Rosa, AZ · Accident · No injuries · Data collection · Final report · Dec 6, 2017 · N790AM · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing.
- [NTSB WPR12CA118](https://openairdocs.org/ntsb/WPR12CA118.md): Eurocopter AS 350 B3 · Poway, CA · Accident · No injuries · Data collection · Final report · Feb 25, 2012 · N118MB · Substantial damage
  > The pilot's inadequate compensation for wind conditions during landing, which resulted in a hard landing.
- [NTSB CEN12LA053](https://openairdocs.org/ntsb/CEN12LA053.md): Eurocopter EC 130 B4 · Noblesville, IN · Accident · Minor injuries · Limited investigation · Final report · Nov 3, 2011 · N130AL · Substantial damage
  > The hard landing the pilot performed with a quartering tailwind, leading to the helicopter's rollover. Contributing to the accident was the pilot’s reliance on a weather service that did not provide a primary weather product.
- [NTSB WPR09TA001](https://openairdocs.org/ntsb/WPR09TA001.md): Eurocopter AS350B3 · Blaine, WA · Accident · No injuries · Final report · Oct 2, 2008 · N172AE · Substantial damage
  > The pilot's failure to maintain main rotor rpm, which resulted in a hard landing. Contributing to the accident were the flight instructor's delayed remedial action and inadequate supervision of the flight.

## 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 ('60056')
    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" = '092'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/092/cases?engine=60056

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