# NTSB investigations: Enstrom F-28A: Hard landing

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 BFO92LA139](https://openairdocs.org/ntsb/BFO92LA139.md): Enstrom F-28A · Shelbyville, KY · Accident · No injuries · Limited investigation · Final report · Sep 13, 1992 · N950SC · Substantial damage
  > An improper flare made by the pilot resulting in a hard landing and main rotor blade tail boom strike.
- [NTSB ANC90FA047](https://openairdocs.org/ntsb/ANC90FA047.md): de Havilland DHC-6 · Chevak, AK · Accident · No injuries · Field investigation · Final report · Mar 29, 1990 · N200EH · Substantial damage
  > Improper flare by the pilot (PIC) during the landing/flare. The weather condition with fog was a related factor.
- [NTSB LAX88LA198](https://openairdocs.org/ntsb/LAX88LA198.md): Enstrom F28A · La Verne, CA · Accident · No injuries · Limited investigation · Final report · May 27, 1988 · N4898 · Substantial damage
  > The helicopter landed hard during a practice touchdown autorotation (auto). The helo remained in closed traffic for the purpose of practicing touchdown autos to a landing area adjacent to the aprt's rwy. There was also another helo in closed traffic using the…
- [NTSB NYC84LA171](https://openairdocs.org/ntsb/NYC84LA171.md): Enstrom F-28A · Spencer, MA · Accident · No injuries · Limited investigation · Final report · May 11, 1984 · N9220 · Substantial damage
  > According to the plt, the purpose of the flt was to practice autorotations. During practice, the acft touched down hard & was substantially damaged.
- [NTSB CHI83LA193](https://openairdocs.org/ntsb/CHI83LA193.md): Enstrom F-28A · Schaumburg, IL · Accident · No injuries · Limited investigation · Final report · Apr 27, 1983 · N519H · Substantial damage
  > The rated student was on an instructional flt to become a helicopter instructor plt. During an autorotative landing in a farmer's field, the helicopter landed hard & the main rotor hit the tail cone.

## 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 ('3300406')
    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" = 200))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3300406&occurrence=200

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