# NTSB investigations: Robinson Helicopter R22: 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 SEA07CA171](https://openairdocs.org/ntsb/SEA07CA171.md): Robinson R22 Beta II · Park City, UT · Accident · No injuries · Data collection · Final report · Jun 18, 2007 · N712U · Substantial damage
  > The pilot's failure to maintain rotor RPM during hover taxi. A contributing factor was the high density altitude weather condition.
- [NTSB DEN04CA061](https://openairdocs.org/ntsb/DEN04CA061.md): Robinson R22 · Nephi, UT · Accident · No injuries · Data collection · Final report · Apr 14, 2004 · N555UH · Substantial damage
  > the flight instructor's failure to maintain control of the helicopter resulting in a hard landing.
- [NTSB NYC99LA090](https://openairdocs.org/ntsb/NYC99LA090.md): Robinson R-22 · Port Jefferson, NY · Accident · No injuries · Limited investigation · Final report · Apr 15, 1999 · N151RM · Substantial damage
  > the lack of supervision by the flight instructor which resulted in a low rotor condition and subsequent hard landing.
- [NTSB FTW98LA330](https://openairdocs.org/ntsb/FTW98LA330.md): Robinson R22 · Lubbock, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 1998 · N789HP · Substantial damage
  > The pilot's failure to perform an adequate flare, and his improper touchdown technique. Factors were the pilot's improper evaluation of the weather conditions, and the high density altitude and crosswind weather condition.
- [NTSB MIA94LA157](https://openairdocs.org/ntsb/MIA94LA157.md): Robinson R-22 · Bunnell, FL · Accident · No injuries · Limited investigation · Final report · May 26, 1994 · N16MT · Substantial damage
  > The pilot-in-command's improper use of flight controls (cyclic/collective) resulting in a hard landing.
- [NTSB LAX88LA037](https://openairdocs.org/ntsb/LAX88LA037.md): Robinson R-22 · San Luis Obispo, CA · Accident · No injuries · Limited investigation · Final report · Nov 8, 1987 · N123PL · Substantial damage
  > A Robinson R22 landed hard while on a VFR business flight. The pilot reported that he landed hard during a downwind approach to a landing site. He examined the helicopter and noticed the aft landing gear cross tube was bent. He felt the helicopter was…
- [NTSB CHI87LA178](https://openairdocs.org/ntsb/CHI87LA178.md): Robinson 22 · Minnetonka, MN · Accident · No injuries · Limited investigation · Final report · Jul 29, 1987 · N8383F · Substantial damage
  > While attempting to land on a flat spot on top of a hill the tail rotor hit the ground and the tail boom broke off. One witness reports that when the helicopter touched down it bounced up about 10 feet. No mechanical malfunctions were reported.
- [NTSB LAX85LA317](https://openairdocs.org/ntsb/LAX85LA317.md): Robinson R-22A · Piru, CA · Accident · No injuries · Limited investigation · Final report · Jul 14, 1985 · N85594 · Substantial damage
  > The flight instructor instructed the 25-hour student plt to perform an autorotation with a pwr recovery at 20 ft AGL. The instructor became aware too late that the student was 'dead locked' on the controls and he was unable to recover prior to touchdown. A…
- [NTSB FTW85LA036](https://openairdocs.org/ntsb/FTW85LA036.md): Robinson R22 · New Orleans, LA · Accident · No injuries · Limited investigation · Final report · Nov 5, 1984 · N8360A · Substantial damage
  > According to the CFI there was no intention to perform 'touchdown' autorotation landings. During the third simulated power loss the CFI reported that he initiated the flare at about 55 ft AGL. As airspeed dissipated and the sink rate continued the CFI…
- [NTSB LAX82DA156](https://openairdocs.org/ntsb/LAX82DA156.md): Robinson R-22HP · North Las Vegas, NV · Accident · Minor injuries · Final report · May 1, 1982 · N90764 · Substantial damage
  > The passenger stated that during the approach to the landing area he noticed a decrease in rpm's and that the pilot was having difficulty in stabilizing the aircraft. He also noted that the helicopter was descending faster than the prior approach. Damage…

## 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" = 200))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640102&occurrence=200

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