# NTSB investigations: Lycoming VO-540 series, MO

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 CEN11CA403](https://openairdocs.org/ntsb/CEN11CA403.md): Bell 47G-4A · Montgomery City, MO · Accident · No injuries · Data collection · Final report · Jun 18, 2011 · N24HM · Substantial damage
  > A loss of control during the precautionary landing, which resulted in inadvertent contact between the main rotor and the tailboom. Contributing to the accident was the overloaded condition.
- [NTSB MKC84LA205](https://openairdocs.org/ntsb/MKC84LA205.md): Hiller H-23D · Neelyville, MO · Accident · No injuries · Limited investigation · Final report · Jul 9, 1984 · N48313 · Destroyed
  > The acft rolled over during an emergency landing. The plt claimed that the rotor disengaged at about 30 ft AGL during takeoff. After the accident the upper half of the yoke control was found fractured. A lab report stated that no materialdefects were related…
- [NTSB MKC82DA135](https://openairdocs.org/ntsb/MKC82DA135.md): Bell 47J-2 · Chesterfield, MO · Accident · No injuries · Final report · Jul 31, 1982 · N4070B · Substantial damage
  > The pilot stated that he took off and was going through translational lift at about 15 to 20 ft AGL when he heard a loud bang. He said the loud bang was accompanied by a power loss. An immediate descent was made and the helicopter was landed hard with a…
- [NTSB MKC81FCG36](https://openairdocs.org/ntsb/MKC81FCG36.md): Bell 47J-2 · Branson, MO · Accident · No injuries · Closed · May 26, 1981 · N73265 · Substantial damage
- [NTSB MKC75FCA30](https://openairdocs.org/ntsb/MKC75FCA30.md): Hiller Acft 12E · Charleston, MO · Accident · No injuries · Closed · Apr 20, 1975 · N87600 · Substantial damage
- [NTSB MKC69D0035](https://openairdocs.org/ntsb/MKC69D0035.md): Bell 47G-2A · Crocker, MO · Accident · No injuries · Closed · Jun 21, 1968 · N8484E · Substantial damage

## 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" = 'MO' 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=MO

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.