# NTSB investigations: Enstrom F-28C: 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 ANC23LA024](https://openairdocs.org/ntsb/ANC23LA024.md): Enstrom F-28C · Anchorage, AK · Accident · No injuries · Class 3 · Limited · Final report · Mar 5, 2023 · N5688R · Substantial damage
  > The pilot’s failure to maintain main rotor rpm on takeoff, which resulted in a forced run-on landing.
- [NTSB ERA19TA005](https://openairdocs.org/ntsb/ERA19TA005.md): Enstrom F28 · Bridgeville, DE · Accident · No injuries · Final report · Oct 7, 2018 · N5691Y · Substantial damage
  > The pilot's mismanagement of collective pitch control during takeoff from an area with numerous obstacles, which resulted in the helicopter entering a low rotor rpm state and a forced hard landing.
- [NTSB CEN13CA238](https://openairdocs.org/ntsb/CEN13CA238.md): Enstrom F-28C · Lanesboro, IA · Accident · No injuries · Data collection · Final report · Apr 24, 2013 · N51767 · Substantial damage
  > The pilot’s failure to maintain control of the helicopter while making an off-airport landing with a gusty tailwind.
- [NTSB CEN13LA099](https://openairdocs.org/ntsb/CEN13LA099.md): Enstrom F-28C · Abilene, TX · Accident · No injuries · Limited investigation · Final report · Dec 7, 2012 · N574H · Substantial damage
  > The flight instructor's failure to conduct an autorotation following the loss of engine power due to fuel exhaustion. Contributing to the accident was the failure of the flight instructor and the student pilot to visually check fuel levels to ensure adequate…
- [NTSB WPR12LA111](https://openairdocs.org/ntsb/WPR12LA111.md): Enstrom F28 · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Feb 20, 2012 · N51727 · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA11CA166](https://openairdocs.org/ntsb/ERA11CA166.md): Enstrom F-28C · Fort Pierce, FL · Accident · Minor injuries · Data collection · Final report · Feb 26, 2011 · N5689B · Substantial damage
  > The pilot's improper fuel management, which resulted in a loss of engine power due to fuel exhaustion.

## 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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '092' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/092/sequence?model=3300407

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