# NTSB investigations: Robinson Helicopter R22 MARINER: Collision with terr/obj (non-CFIT)

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 ERA22LA340](https://openairdocs.org/ntsb/ERA22LA340.md): Robinson Helicopter R22 Mariner · Hollywood, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 27, 2022 · N42WC · Substantial damage
  > Inadequate maintenance of the helicopter’s tail rotor blades, which resulted in a failure of the tail rotor drive system, and an inflight loss of yaw control from which the flight instructor was unable to recover.
- [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 WPR13LA025](https://openairdocs.org/ntsb/WPR13LA025.md): Robinson Helicopter R22 Mariner · Lake Havasu, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 27, 2012 · N2627M · Substantial damage
  > The pilot’s unintentional and unrecognized entry into a vortex ring state as a result of conducting a course reversal turn into a tailwind while at a low altitude and airspeed, which resulted in an uncontrolled descent into water.
- [NTSB ERA12LA399](https://openairdocs.org/ntsb/ERA12LA399.md): Robinson Helicopter R22 Mariner · Oak Island, NC · Accident · No injuries · Limited investigation · Final report · Jun 14, 2012 · N1089N · Substantial damage
  > The pilot's failure to properly execute the helicopter practice autorotation recovery, which resulted in a collision with the water.
- [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" = '470' 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/470/sequence?model=7640115

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