# NTSB investigations: Lycoming VO-540 series, WV

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 ATL83LA160](https://openairdocs.org/ntsb/ATL83LA160.md): Bell 47G-4A · Charleston, WV · Accident · No injuries · Limited investigation · Final report · Apr 13, 1983 · N4749R · Substantial damage
  > During an approach to land, the engine lost power at aprx 500 ft AGL. The plt reported that during an autorotative landing, he had to maneuver to avoid trees & a ridge in order to land in a suitable area. During this time, rotor RPM dropped & a crash landing…
- [NTSB ATL80FIJ02](https://openairdocs.org/ntsb/ATL80FIJ02.md): Hiller Acft UH-12E · Oak Hill, WV · Accident · No injuries · Closed · May 12, 1980 · N40289 · Substantial damage
- [NTSB IAD76FIJ05](https://openairdocs.org/ntsb/IAD76FIJ05.md): Bell 47G4 · Tams Mt, WV · Accident · Serious injuries · Closed · Sep 26, 1975 · N73943 · Substantial damage
- [NTSB IAD75DIJ03](https://openairdocs.org/ntsb/IAD75DIJ03.md): Bell 47G2A1 · Layland, WV · Accident · Serious injuries · Closed · Aug 10, 1974 · N1215W · Substantial damage
- [NTSB IAD73FIJ25](https://openairdocs.org/ntsb/IAD73FIJ25.md): Bell 47G2A1 · Stickney, WV · Accident · 1 fatal · Closed · Jun 7, 1973 · N1215W · Destroyed

## 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" = 'WV' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41534', '41582'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41534&state=WV

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