# NTSB investigations: Robinson Helicopter R22: Airframe/component/system failure/malfunction

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 CHI03FA025](https://openairdocs.org/ntsb/CHI03FA025.md): Robinson R22 · St. Jacob, IL · Accident · No injuries · Field investigation · Final report · Nov 20, 2002 · N559DD · Substantial damage
  > Fatigue fracture of the clutch assembly fan shaft and the resulting complete loss of power to the rotor drive system. A contributing factor was the loss of tail rotor authority due to the secondary failure of the control tube assembly.
- [NTSB LAX92FA137](https://openairdocs.org/ntsb/LAX92FA137.md): Robinson R22 · Maricopa, AZ · Accident · 1 fatal · Field investigation · Final report · Mar 4, 1992 · N8413Q · Destroyed
  > Destructive mast bumping for an undetermined reason(s).
- [NTSB LAX91LA079](https://openairdocs.org/ntsb/LAX91LA079.md): Robinson R-22 HP · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Jan 25, 1991 · N21439 · Substantial damage
  > The failure of the drive belts due to excessive wear of the clutch assembly upper sheave and the pilot's inaccurate flare during the termination of the autorotation. A factor in the accident was the inadequate design of the clutch assembly upper sheave.
- [NTSB ATL84FA045](https://openairdocs.org/ntsb/ATL84FA045.md): Robinson R22 · Gaithersburg, MD · Accident · No injuries · Field investigation · Final report · Nov 5, 1983 · N8414H · Substantial damage
  > During his 2nd solo flt in the Robinson R22, the plt performed 2 low 'g' maneuvers. The 1st maneuver was essentially the same as when he practiced it during a check-out flt. However, the 2nd maneuver produced a rapid right roll to aprx 60 deg of bank. The plt…
- [NTSB ATL83FA044](https://openairdocs.org/ntsb/ATL83FA044.md): Robinson R-22 · Alabaster, AL · Accident · No injuries · Field investigation · Final report · Nov 23, 1982 · N90218 · Substantial damage
  > The pilot reported that shortly after takeoff, he noticed the rpm's began falling. He stated that he increased the throttle and lowered the collective, but the rpm's continued to decrease until the low RPM warning horn came on. An autorotative landing was…
- [NTSB CHI83FA023](https://openairdocs.org/ntsb/CHI83FA023.md): Robinson R-22 · Indian Hill, OH · Accident · 1 fatal · Field investigation · Final report · Oct 21, 1982 · N9015R · Destroyed
  > The helicopter was observed circling an athletic field. During the third pass over the field it was observed to come to a near hover immediately followed by a tailrotor separation. The manufacturer issued a safety notice 12/4/81 & again on 10/4/82 stressing…
- [NTSB MIA82FA115](https://openairdocs.org/ntsb/MIA82FA115.md): Robinson R-22 · Ft. Pierce, FL · Accident · No injuries · Field investigation · Final report · May 1, 1982 · N90249 · Substantial damage
  > The student pilot was performing autorotations with 180 degree turns terminating with power recoveries. At about 200 feet, after completion of the turn, the instructor heard a rattling noise followed by a medium frequency vibration. The instructor took the…

## 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 ('7640102')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640102&occurrence=130

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