# NTSB investigations: Robinson Helicopter R22 MARINER: 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 ERA25LA046](https://openairdocs.org/ntsb/ERA25LA046.md): Robinson Helicopter R22 Mariner · Parrottsville, TN · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 13, 2024 · N178EP · Substantial damage
  > The pilot’s failure to maintain control of the helicopter during a precautionary, off-airport landing to sloping terrain.
- [NTSB ERA18LA140](https://openairdocs.org/ntsb/ERA18LA140.md): Robinson R22 · Panama City, FL · Accident · Minor injuries · Limited investigation · Final report · May 2, 2018 · N923SM · Substantial damage
  > The pilot's failure to properly remove and secure the tie-down ropes during the preflight inspection, which resulted in the ropes becoming entangled in the rotor head swashplate and pitch control rods during flight and the subsequent loss of pitch control.
- [NTSB CEN13CA575](https://openairdocs.org/ntsb/CEN13CA575.md): Robinson Helicopter R22 Mariner · Lee's Summit, MO · Accident · No injuries · Data collection · Final report · Aug 18, 2013 · N8316D · Substantial damage
  > The student pilot's improper flare while performing an autorotation and the flight instructor's delayed remedial action to correct the high sink rate, which resulted in a hard landing.
- [NTSB DFW08LA140](https://openairdocs.org/ntsb/DFW08LA140.md): Robinson Helicopter R22 Marine · Austin, TX · Accident · No injuries · Limited investigation · Final report · May 10, 2008 · N8316D · Substantial damage
  > The pilot's failure to maintain rotor RPM while maneuvering at a low altitude, which resulted in a loss of control.

## 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 ('7640115')
    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=7640115

---
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.