# NTSB investigations, LA: Ground resonance

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 CEN17LA229](https://openairdocs.org/ntsb/CEN17LA229.md): Hughes 269C · Tallulah, LA · Accident · No injuries · Limited investigation · Final report · Jun 10, 2017 · N7482F · Substantial damage
  > The pilot's failure to reset the cyclic trim before takeoff, which resulted in ground resonance.
- [NTSB CEN10CA352](https://openairdocs.org/ntsb/CEN10CA352.md): Aerospatiale AS350 · Lake Charles, LA · Accident · No injuries · Data collection · Final report · Jun 26, 2010 · N191EH · Substantial damage
  > The flight instructor’s inadvertent entry into ground resonance when demonstrating a hydraulic failure running landing, which resulted in substantial damage to the helicopter. Contributing to the accident was the pilot's and instructor pilot's failure to…

## 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" = 'LA' 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" = '232' 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/232/sequence?state=LA

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