# Accident 19990325002679A: Robsin R22BETA, Denver, CO, March 25, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 25, 1999, 16:30 local time
- Place: Denver, CO
- Airport: Centennial Airport
- Damage: Substantial damage
- Operating rules: General operating rules (Part 91)
- Location: 39.5796° N, 104.8598° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.5796&lon=-104.8598&mi=10
- Aircraft: N8354Z, a cancelled registration (https://openairdocs.org/deregistered/N8354Z-2018-01-26) (OpenAirDocs)
- Registry model: Robinson Helicopter R22 BETA (registry code 7640110, https://openairdocs.org/model/robinson-helicopter-r22-beta) (OpenAirDocs)
- Registry engine: Lycoming 0-360-A1D (registry code 41504, https://openairdocs.org/engine/lycoming-0-360-a1d) (OpenAirDocs)
- Reported make and model: ROBSIN R22BETA
- NTSB investigation: [NTSB DEN99LA058](https://openairdocs.org/ntsb/DEN99LA058) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990325002679A

## Narrative

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

(-23)AIRCRAFT OPERATED BY XL HELICOPTERS OF BOULDER, CO. WAS SUBSTANTIALLY DAMAGED WHILE PERFORMING TRAINING IN AN AREA APROX. 7 MILES SOUTH OF ENGLEWOOD, CO. THE AIRCRAFT WAS BEING OPERATED UNDER FAR 91 AND NO FLIGHT PLAN HAD BEEN FILED. VMC CONDITIONS PREVAILED FOR THE LOCAL AREA.  THE FLIGHT ORIGINATED FROM CENTENNIAL AIRPORT, ENGLEWOOD, CO. APROX. 30 MINTUES PRIOR TO THE ACCIDENT.  ACCORDING TO THE PIC, TUCKER, THE AIRCRAFT MADE A HARD LANDING IN THE PROCESS OF PERFORMING AN AUTOROTATION.  UPON, THE MAIN ROTORS SEVERED THE TAIL BOOM FROM THE AIRCRAFT.

## 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 DEN99LA058](https://openairdocs.org/ntsb/DEN99LA058), Mar 25, 1999: Robinson R22 Beta (N8354Z), Englewood, CO, substantial damage. Probable cause: The flight instructor allowed the rotor rpm to decay during an autorotation which resulted in a hard landing.

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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