# NTSB investigations: Enstrom F-28C: In flight collision with terrain/water

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 DEN05LA068](https://openairdocs.org/ntsb/DEN05LA068.md): Enstrom F-28C · Morrison, CO · Accident · No injuries · Limited investigation · Final report · Apr 13, 2005 · N5690K · Substantial damage
  > the pilot's failure to maintain rotor RPM during the approach which resulted in a landing short of the helipad.
- [NTSB SEA02LA075](https://openairdocs.org/ntsb/SEA02LA075.md): Enstrom F-28C · Hot Springs, MT · Accident · No injuries · Limited investigation · Final report · Apr 20, 2002 · N51769 · Substantial damage
  > The pilot's failure to adequately compensate for unfavorable wind conditions. Factors include unfavorable/shifting winds, and a tailwind gust.
- [NTSB DEN89LA118](https://openairdocs.org/ntsb/DEN89LA118.md): Enstrom F-28C · Regina, NM · Accident · No injuries · Limited investigation · Final report · May 9, 1989 · N88RA · Substantial damage
  > The pilot's poorly planned approach and disregard of the helicopters performance data. Contributing to the accident was the high density altitude conditions which existed at the time of the accident.
- [NTSB NYC88LA160](https://openairdocs.org/ntsb/NYC88LA160.md): Enstrom F-28C · Westerly, RI · Accident · No injuries · Limited investigation · Final report · Jun 5, 1988 · N580H · Substantial damage
  > The instructor pilot stated that after executing several straight-in and 180 degree autorotations they decided to attempt some hovering autorotations. After executing the first one successfully in a tailwind situation, the student initiated the second one,…
- [NTSB MKC84LA144](https://openairdocs.org/ntsb/MKC84LA144.md): Enstrom F-28C · Louisville, NE · Accident · No injuries · Limited investigation · Final report · May 23, 1984 · N51792 · Substantial damage
  > According to the plt, the helicopter was involved in a ground search with a non-trained pax in the right seat. With the pax flying the acft in a hover the right skid contacted the muddy terrain causing the acft to roll over.
- [NTSB ATL83LA191](https://openairdocs.org/ntsb/ATL83LA191.md): Enstrom F-28C · Wise, VA · Accident · No injuries · Limited investigation · Final report · May 20, 1983 · N654H · Substantial damage
  > The plt reported that he had stayed in the local area & had been practicing slow hover over the grass beside the rwy. There was a paved ramp that he had to cross, each time he went from one end of the rwy to the other. He said when he came to this area, he…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300407')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 230))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3300407&occurrence=230

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