# NTSB investigations: Turbomeca ARRIEL-2B1, AK

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 WPR21FA143](https://openairdocs.org/ntsb/WPR21FA143.md): Airbus Helicopters AS350-B3 · Palmer, AK · Accident · 5 fatal · Class 3 · Field · Final report · Mar 28, 2021 · N351SH · Substantial damage
  > The pilot’s failure to adequately respond to an encounter with whiteout conditions, which resulted in the helicopter’s collision with terrain. Contributing to the accident was the (1) operator’s inadequate pilot training program and pilot competency checks,…
- [NTSB ANC17CA041](https://openairdocs.org/ntsb/ANC17CA041.md): Airbus AS350 · Delta Junction, AK · Accident · No injuries · Data collection · Final report · Aug 3, 2017 · N351SH · Substantial damage
  > The pilot’s failure to maintain clearance from a steel frame attached to a tracked drilling unit. Contributing to the accident was the pilot’s failure to visually identify the steel frame during the reconnaissance process.
- [NTSB ANC14LA041](https://openairdocs.org/ntsb/ANC14LA041.md): Airbus/Eurocopter AS 350 B3 · Anchorage, AK · Accident · No injuries · Class 3 · Limited · Final report · Jun 11, 2014 · N356EV · Substantial damage
  > The pilot’s improper engine start procedure, which resulted in an overspeed of the engine and main rotor drive system.
- [NTSB ANC13GA036](https://openairdocs.org/ntsb/ANC13GA036.md): Eurocopter AS350 · Talkeetna, AK · Accident · 3 fatal · Class 1 · Final report · Mar 31, 2013 · N911AA · Destroyed
  > The pilot's decision to continue flight under visual flight rules into deteriorating weather conditions, which resulted in the pilot's spatial disorientation and loss of control. Also causal was the Alaska Department of Public Safety's punitive culture and…
- [NTSB ANC06TA047](https://openairdocs.org/ntsb/ANC06TA047.md): American Eurocopter AS350 B3 · Nikiski, AK · Accident · No injuries · Final report · Apr 21, 2006 · N911AA · Substantial damage
  > The pilot's failure to maintain adequate altitude/clearance from terrain during an aborted takeoff in whiteout conditions, which resulted in an in-flight collision with terrain. A factor associated with the accident was whiteout conditions.

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

This list as a web page: https://openairdocs.org/ntsb?engine=60056&state=AK

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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.