# NTSB investigations: Hughes 269C, MN

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 CHI91LA097](https://openairdocs.org/ntsb/CHI91LA097.md): Hughes 269C · North Mankato, MN · Accident · Serious injuries · Limited investigation · Final report · Feb 20, 1991 · N8955F · Destroyed
  > The fatique failure of the tail boom support strut attachment cluster and the improper inspection of the cluster attachment.
- [NTSB MKC89LA200](https://openairdocs.org/ntsb/MKC89LA200.md): Hughes 269C · Bloomington, MN · Accident · No injuries · Limited investigation · Final report · Sep 28, 1989 · N95KS · Substantial damage
  > Failure of the engine crankshaft. The light conditions at dawn and the vehicles were considered to be contributing factors.
- [NTSB CHI84LA237](https://openairdocs.org/ntsb/CHI84LA237.md): Hughes 269C · Boyd, MN · Accident · No injuries · Limited investigation · Final report · Jun 14, 1984 · N9668F · Substantial damage
  > While beginning a gradual pull-up at the end of a spray run, the plt was distracted by a person in a ditch & did not see the wire at the end of the field. The wire contacted the tail rotor & the helicopter began to spin. The plt reduced power & was able to…
- [NTSB CHI80FER59](https://openairdocs.org/ntsb/CHI80FER59.md): Hughes 269C · Rockford, MN · Accident · Minor injuries · Closed · Sep 7, 1980 · N7473F · Substantial damage
- [NTSB CHI80FER44](https://openairdocs.org/ntsb/CHI80FER44.md): Hughes 269C · Dexter, MN · Accident · Minor injuries · Closed · Jun 3, 1980 · N7482F · Destroyed
- [NTSB CHI80DER43](https://openairdocs.org/ntsb/CHI80DER43.md): Hughes 269C · Willmar, MN · Accident · No injuries · Closed · Jun 1, 1980 · N7448F · Substantial damage
- [NTSB MKC79FER63](https://openairdocs.org/ntsb/MKC79FER63.md): Hughes 269C · Willmar, MN · Accident · No injuries · Closed · Jul 2, 1979 · N7448F · 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" = 'MN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470504'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470504&state=MN

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