# NTSB investigations, CA: 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 WPR21LA268](https://openairdocs.org/ntsb/WPR21LA268.md): Bell 212HP · Weed, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 7, 2021 · N911KW · Substantial damage
  > The pilot’s failure to maintain altitude during an approach to a lake. Contributing to the accident was the pilot’s failure to release the full water bucket as the helicopter was settling, which reduced the helicopter’s out-of-ground-effect performance.
- [NTSB WPR20LA163](https://openairdocs.org/ntsb/WPR20LA163.md): Bell 206 · Fairfield, CA · Accident · 3 fatal · Class 3 · Limited · Final report · Jun 2, 2020 · N65PJ · Substantial damage
  > The pilot’s failure to maintain adequate clearance from powerlines while conducting external load operations, which resulted in the main rotor contacting a wire and a subsequent collision with terrain.
- [NTSB WPR09TA353](https://openairdocs.org/ntsb/WPR09TA353.md): Croman SH-3H · Willow Creek, CA · Accident · Minor injuries · Final report · Jul 17, 2009 · N613CK · Substantial damage
  > The pilot’s failure to maintain adequate power during egress from a heliwell, which resulted in collision with the heliwell and a dynamic rollover.
- [NTSB WPR09LA226](https://openairdocs.org/ntsb/WPR09LA226.md): MD Helicopter 369FF · Santa Clarita, CA · Accident · No injuries · Limited investigation · Final report · May 1, 2009 · N67FF · Substantial damage
  > The pilot's failure to maintain clearance from the water while maneuvering at low altitude as a result of the helicopter's grappling hook temporarily becoming ensnared with an underwater obstruction.

## 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" = 'CA' 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=CA

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