# NTSB investigations: Lycoming O-360-J2A: 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 ERA26LA327](https://openairdocs.org/ntsb/ERA26LA327.md): Robinson Helicopter R22 Beta · McMinnville, TN · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 3, 2026 · N276SH · Substantial damage
  > The flight instructor’s delayed remedial action during a practice autorotation, which resulted in a hard landing.
- [NTSB CEN24LA070](https://openairdocs.org/ntsb/CEN24LA070.md): Helicopteres Guimbal Cabri G2 · Claremore, OK · Accident · No injuries · Class 4 · Limited · Final report · Nov 8, 2023 · N522TF · Substantial damage
  > The flight instructor’s failure to maintain sufficient rotor speed during a practice autorotation which resulted in a hard landing.
- [NTSB WPR23LA191](https://openairdocs.org/ntsb/WPR23LA191.md): Robinson Helicopter R22 · Spanish Fork, UT · Accident · No injuries · Class 4 · Limited · Final report · May 15, 2023 · N227WM · Substantial damage
  > The instructor pilot’s improper landing flare during a straight-in autorotation, which resulted in a hard landing.
- [NTSB GAA15CA181](https://openairdocs.org/ntsb/GAA15CA181.md): Robinson Helicopter R22 Beta · Caldwell, ID · Accident · No injuries · Data collection · Final report · Jul 13, 2015 · N184SH · Substantial damage
  > Abnormal ground contact during a 180 degree autorotation, resulting in a severed tail rotor driveshaft by a main rotor blade. A factor contributing to the accident was the rotor blowback condition due to the aft tilting of the main rotor disk.
- [NTSB WPR12LA362](https://openairdocs.org/ntsb/WPR12LA362.md): Robinson Helicopter R22 Beta · Spanish Fork, UT · Accident · Serious injuries · Limited investigation · Final report · Aug 17, 2012 · N208WM · Substantial damage
  > The flight instructor’s delayed remedial action and inadequate supervision during a practice autorotation, which resulted in a hard landing and rollover.

## 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 ('42314')
    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=42314

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.