# Accident 19990909044809A: Robsin R22BETA, Las Vegas, NV, September 9, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 9, 1999, 14:30 local time
- Place: Las Vegas, NV
- Airport: North Las Vegas Air Terminal
- Damage: No damage
- Operating rules: General operating rules (Part 91)
- Location: 36.1592° N, 115.4302° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=36.1592&lon=-115.4302&mi=10
- Aircraft: N4076Z, a cancelled registration (https://openairdocs.org/deregistered/N4076Z-2004-02-18) (OpenAirDocs)
- Registry model: Robinson Helicopter R22 BETA (registry code 7640110, https://openairdocs.org/model/robinson-helicopter-r22-beta) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: ROBSIN R22BETA
- NTSB investigation: [NTSB LAX99LA300](https://openairdocs.org/ntsb/LAX99LA300) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990909044809A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) TWO HELICOPTER CERTIFIED FLIGHT INSTRUCTORS WERE PRACTICING AUTOROTAIONS. THEY FAILED TO RECOVER ON AN AUTOROTATION, STRUCK THE GROUND, AND ROLLED OVER.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX99LA300](https://openairdocs.org/ntsb/LAX99LA300), Sep 9, 1999: Robinson R-22-BETA (N4076Z), Piute, NV, substantial damage. Probable cause: the failure of the pilot to maintain rotor rpm while practicing autorotations, resulting in a hard landing and roll over.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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