# NTSB investigations, NV: External load event (Rotorcraft)

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 WPR20LA244](https://openairdocs.org/ntsb/WPR20LA244.md): American Eurocopter AS350 · Pioche, NV · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 29, 2020 · N755AE · Destroyed
  > The pilot’s failure to maintain altitude from terrain and subsequent loss of helicopter control due to entanglement of the external load cable with the tail rotor.
- [NTSB WPR14GA281](https://openairdocs.org/ntsb/WPR14GA281.md): American Eurocopter AS350B3 · Fallon, NV · Accident · Minor injuries · Final report · Jul 4, 2014 · N832PA · Substantial damage
  > A loss of tail rotor effectiveness, which resulted in an uncontrolled rotation and descent into terrain. Contributing to the accident was a sudden shift in wind conditions and the helicopter's high power demand condition due to its load weight and operating…
- [NTSB WPR13GA338](https://openairdocs.org/ntsb/WPR13GA338.md): Bell HH-1H · Mount Charleston, NV · Accident · 1 fatal · Final report · Jul 23, 2013 · N233JP · No damage
  > The premature hoisting operation and the inadvertent disengagement of the hoist hook on the rescuer’s harness in dark night conditions. Contributing to the accident was a lack of direct audio communication between the rescuer and the hoist operator.

## 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" = 'NV' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '480' 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/480/sequence?state=NV

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