# NTSB investigations: Rolls-Royce 250-C47B: 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 ERA26LA170](https://openairdocs.org/ntsb/ERA26LA170.md): Bell 407 · Jacksonville, FL · Accident · No injuries · Class 4 · Limited · Final report · Apr 11, 2026 · N314JP · Substantial damage
  > The pilot’s improper recovery from a practice autorotation, which resulted in a hard landing. Contributing to the accident was the flight instructor’s inadequate supervision of the pilot receiving the instruction.
- [NTSB ERA24LA045](https://openairdocs.org/ntsb/ERA24LA045.md): Bell 407 · Chesterfield, VA · Accident · No injuries · Class 4 · Limited · Final report · Nov 16, 2023 · N26VA · Substantial damage
  > A hard landing, which resulted in a main rotor strike of the left vertical stablizer.
- [NTSB ERA21LA264](https://openairdocs.org/ntsb/ERA21LA264.md): Bell 407 · Tampa, FL · Accident · No injuries · Class 4 · Limited · Final report · Jun 22, 2021 · N512TP · Substantial damage
  > The pilot’s improper landing flare while making a power off practice autorotative landing. Contributing was the decreased visual cues provided by the recently paved runway during the night landing conducted with the aid of night vision goggles.
- [NTSB CEN20CA395](https://openairdocs.org/ntsb/CEN20CA395.md): Bell 407 · Fort Worth, TX · Accident · No injuries · Class 4 · Data collection · Final report · Sep 15, 2020 · N489DM · Substantial damage
  > The flight instructor’s delay in rolling the throttle to the fly position during a practice autorotation maneuver that resulted in a hard landing.
- [NTSB CEN17LA188](https://openairdocs.org/ntsb/CEN17LA188.md): Bell 407 · Fort Worth, TX · Accident · No injuries · Limited investigation · Final report · Jan 24, 2017 · N6040Y · Substantial damage
  > The flight instructor's failure to prevent the engine/rotor overspeed condition during the demonstration maneuver and the excessive descent rate during the emergency landing, which resulted in a hard landing. Contributing to the engine/rotor overspeed…
- [NTSB CEN09CA203](https://openairdocs.org/ntsb/CEN09CA203.md): Bell 407 · Lancaster, TX · Accident · No injuries · Data collection · Final report · Feb 27, 2009 · N2592T · Substantial damage
  > The failure of the pilot to maintain adequate main rotor rpm and the failure of the CFI to provide appropriate instruction during the maneuver.

## 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.engine_model_code IN ('54585')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '092'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/092/cases?engine=54585

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