ASN Wikibase Occurrence # 285020
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| Date: | Saturday 21 April 2007 |
| Time: | 10:15 LT |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Utah Helicopter |
| Registration: | N222MQ |
| MSN: | |
| Engine model: | Lycoming O-360 Series |
| Fatalities: | Fatalities: 0 / Occupants: 0 |
| Aircraft damage: | Unknown |
| Category: | Accident |
| Location: | Spanish Fork, UT -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a practice hover autorotation, the helicopter touched down hard, bounced, and experienced a dynamic rollover. The student performed three hovering autorotations without incident. The student properly entered the fourth autorotation, which was to be the last of the flight. The student then made several cyclic input changes and the helicopter touched down on the left skid, resulting in the helicopter bouncing back airborne. The student reacted by inputting left pedal followed with abrupt right forward cyclic movement. The helicopter drifted right and began to pivot around the front portion of the right skid. The CFI assumed authority of the flight controls in attempt to regain directional control; however, the helicopter continued rolling over on its right side. The CFI reported no mechanical malfunctions or failures with the helicopter prior to impact.
Probable Cause: The student pilot's improper use of the flight controls, which induced a dynamic rollover. Also causal was the certificated flight instructor's inadequate supervision and delayed remedial action.
Accident investigation:
 |
|
Sources:
NTSB LAX07CA131
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Oct-2022 16:42 | ASN Update Bot | Added |
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