# NTSB investigations: American Eurocopter AS350B3, AZ

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 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 WPR13TA051](https://openairdocs.org/ntsb/WPR13TA051.md): Eurocopter AS350B3 2B1 · Newfield, AZ · Accident · Minor injuries · Final report · Nov 23, 2012 · N3984A · Substantial damage
  > The pilot's distraction while retrieving an item behind him while the helicopter was on the ground with the engine running, which led to his aggressive overapplication of the flight controls after experiencing a ground resonance condition and subsequent loss…
- [NTSB WPR10FA371](https://openairdocs.org/ntsb/WPR10FA371.md): American Eurocopter AS 350 B3 · Tucson, AZ · Accident · 3 fatal · Field investigation · Final report · Jul 28, 2010 · N509AM · Substantial damage
  > The repair station technician did not properly install the fuel inlet union during reassembly of the engine; the operator’s maintenance personnel did not adequately inspect the technician's work; and the pilot who performed the post maintenance check 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."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1145004', '1145002'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1145004&state=AZ

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