# NTSB investigations: Eurocopter AS 350 B3: Miscellaneous/other

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 ANC25LA097](https://openairdocs.org/ntsb/ANC25LA097.md): Airbus Helicopters AS350B3e · Skwentna, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 20, 2025 · N589SH · Substantial damage
  > The pilot’s inadvertent entanglement of a lightweight Kevlar long line into the helicopters operating main rotor system, resulting in a severe imbalance and separation of the main rotor gearbox.
- [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 ERA17LA126](https://openairdocs.org/ntsb/ERA17LA126.md): Eurocopter AS 350 · San Juan, PR · Accident · No injuries · Limited investigation · Final report · Feb 21, 2017 · N413LP · Substantial damage
  > The flight instructor's incorrect manipulations of the twist grip throttle control during a practice autorotation, which resulted in an engine overspeed and subsequent fire.
- [NTSB WPR14TA370](https://openairdocs.org/ntsb/WPR14TA370.md): Eurocopter AS 350 B3 · Lincoln, CA · Accident · No injuries · Final report · Sep 5, 2014 · N217HP · Substantial damage
  > The failure of the engine to provide sufficient power when commanded by the pilot during the power recovery phase of a practice autorotation for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or…
- [NTSB ERA14TA096](https://openairdocs.org/ntsb/ERA14TA096.md): Eurocopter AS350B3 · Houlton, ME · Accident · No injuries · Final report · Jan 18, 2014 · N578AE · Substantial damage
  > An engine compartment explosion during takeoff; the origin of the explosion could not be determined during postaccident examination due to extensive fire damage.
- [NTSB WPR10CA164](https://openairdocs.org/ntsb/WPR10CA164.md): Eurocopter AS 350 B3 · Parker, AZ · Accident · No injuries · Data collection · Final report · Mar 16, 2010 · N4282 · Substantial damage
  > The mechanics' failure to account for all the tools following a maintenance procedure and the pilot's failure to perform a preflight check before a maintenance test 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.aircraft_model_code IN ('8680954')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '900' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/900/sequence?model=8680954

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