# NTSB investigations: Enstrom F-28C: Loss of control in flight

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 WPR26LA094](https://openairdocs.org/ntsb/WPR26LA094.md): Enstrom F28C · Leeds, UT · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Feb 2, 2026 · N5692Y · Substantial damage
  > On February 2, 2026, at about 1301 mountain standard time, an Enstrom F-28C helicopter, registration N5692Y, was substantially damaged near Leeds, Utah. The pilot and passenger sustained minor injuries. At the time of the accident, the helicopter was being…
- [NTSB ERA21LA357](https://openairdocs.org/ntsb/ERA21LA357.md): Enstrom F28 · Toughkenamon, PA · Accident · No injuries · Class 4 · Limited · Final report · Sep 8, 2021 · N51789 · Substantial damage
  > The pilot’s failure to maintain control of the helicopter during an out-of-ground effect hover in a gusty wind, due to loss of tail rotor effectiveness.
- [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 WPR17LA158](https://openairdocs.org/ntsb/WPR17LA158.md): Enstrom F 28C · Ontario, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2017 · N5697B · Substantial damage
  > The student pilot's mismanagement of the main rotor rpm, which resulted in low rotor rpm, a high descent rate, and a subsequent hard landing.

## 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" = '240' 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/240/sequence?model=3300407

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