# NTSB investigations: Robinson Helicopter R22, 1990

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 NYC91LA049](https://openairdocs.org/ntsb/NYC91LA049.md): Robinson R22 · West Kingston, RI · Accident · No injuries · Limited investigation · Final report · Dec 15, 1990 · N9073S · Destroyed
  > The pilot's failure to maintain directional control. Contributing was the malfunction of the pedal assembly.
- [NTSB LAX90LA317](https://openairdocs.org/ntsb/LAX90LA317.md): Robinson R22A · Beatty, NV · Accident · Serious injuries · Limited investigation · Final report · Sep 7, 1990 · N85594 · Substantial damage
  > The pilot's selection of an inadequate cruise altitude and his failure to maintain adequate rotor RPM. Contributing factors related to the high density altitude, rising terrain, and the pilot's delayed and improper use of the collective.
- [NTSB NYC90LA197](https://openairdocs.org/ntsb/NYC90LA197.md): Robinson R-22HP · Islip, NY · Accident · No injuries · Limited investigation · Final report · Aug 17, 1990 · N9069Z · Substantial damage
  > Improper use of flt controls.
- [NTSB SEA90LA157](https://openairdocs.org/ntsb/SEA90LA157.md): Robinson R22 · Ellensburg, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 9, 1990 · N9072N · Substantial damage
  > The pilot did not adequately level off the helicopter and collided with the terrain.
- [NTSB NYC90LA177](https://openairdocs.org/ntsb/NYC90LA177.md): Robinson R22HP · Shirley, NY · Accident · No injuries · Limited investigation · Final report · Jul 29, 1990 · N9030Z · Substantial damage
  > Improper use of the flight controls by the student pilot.
- [NTSB LAX90LA227](https://openairdocs.org/ntsb/LAX90LA227.md): Robinson R22A · Pinon Hills, CA · Accident · No injuries · Limited investigation · Final report · Jun 23, 1990 · N84378 · Substantial damage
  > The pilot's failure to maintain adequate rotor RPM during an attempted takeoff. A contributing factor was the high density altitude.
- [NTSB LAX90LA203](https://openairdocs.org/ntsb/LAX90LA203.md): Robinson R22 · Corona, CA · Accident · No injuries · Limited investigation · Final report · May 30, 1990 · N90787 · Substantial damage
  > The student pilot's failure to maintain directional control, failue to maintain correct rotor RPM, and improper use of the flight controls.
- [NTSB CHI90DEK04](https://openairdocs.org/ntsb/CHI90DEK04.md): Robinson R-22 · St. Mary'S, OH · Accident · Minor injuries · Final report · May 14, 1990 · N90778 · Substantial damage
  > The pilot's failure to see and avoid wires in his operating area.
- [NTSB NYC90LA103](https://openairdocs.org/ntsb/NYC90LA103.md): Robinson R22 · Millville, NJ · Accident · No injuries · Limited investigation · Final report · May 8, 1990 · N9071Z · Substantial damage
  > The student pilot's improper use of the flight controls, and inadequate supervision of the flight by the instructor (CFI). Contributing to the accident was the lack of total time and experience of both the student and instructor.
- [NTSB LAX90LA157](https://openairdocs.org/ntsb/LAX90LA157.md): Robinson R22 · Mammoth Lakes, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 1990 · N8560M · Substantial damage
  > Pilot's encounter with a strong downdraft while cruising at an inadequate altitude. A contributing factor was the high altitude which limited available engine power for recovery.

## 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 year(c."eventDate") = 1990
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640102'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640102&year=1990

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