# NTSB investigations: Hughes 269C, CO

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 DEN05FA080](https://openairdocs.org/ntsb/DEN05FA080.md): Schweizer 269C · Pueblo, CO · Accident · Serious injuries · Field investigation · Final report · Jun 15, 2005 · N311CP · Destroyed
  > the flight instructor's failure to maintain control of the helicopter during the attempted autorotation after the loss of engine power for reasons undetermined. Contributing factors include the flight instructor's improper preflight planning, the high density…
- [NTSB DEN05CA052](https://openairdocs.org/ntsb/DEN05CA052.md): Hughes 269C · Englewood, CO · Accident · No injuries · Data collection · Final report · Jan 29, 2005 · N9688F · Substantial damage
  > the student pilot's failure to maintain control of the helicopter and the instructor's inadequate supervision of the flight. Contributing factors were low rotor rpm, low airspeed, and the instructor's delay in taking remedial action.
- [NTSB DEN03FA090](https://openairdocs.org/ntsb/DEN03FA090.md): Hughes 269C · Watkins, CO · Accident · 1 fatal · Field investigation · Final report · May 28, 2003 · N9643F · Destroyed
  > failure of both pilots to initiate a timely recovery from a practice autorotation. A contributing factor was the instructor's inadequate supervision of the pilot receiving instruction.
- [NTSB DEN00LA083](https://openairdocs.org/ntsb/DEN00LA083.md): Hughes 269C · Loveland, CO · Accident · No injuries · Limited investigation · Final report · May 3, 2000 · N1098B · Substantial damage
  > The pilot misjudged the run on landing during a full autorotation. Factors were a total loss of power for unknown reasons and soft terrain.
- [NTSB DEN79FTE44](https://openairdocs.org/ntsb/DEN79FTE44.md): Hughes 269C · Eckley, CO · Accident · Minor injuries · Closed · Jun 12, 1979 · N7472F · Substantial damage
- [NTSB DEN78FA017](https://openairdocs.org/ntsb/DEN78FA017.md): Hughes 269C · Colorado Sprgs, CO · Accident · 1 fatal · Closed · May 30, 1977 · N7457F · Destroyed
- [NTSB DEN77DTE07](https://openairdocs.org/ntsb/DEN77DTE07.md): Hughes 269C · Two Buttes, CO · Accident · No injuries · Closed · Nov 14, 1976 · N7457F · 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" = 'CO' 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=CO

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