ASN Wikibase Occurrence # 298129
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| Date: | Tuesday 29 August 2017 |
| Time: | 12:30 LT |
| Type: |  Robinson R22 |
| Owner/operator: | Capitol Helicopters |
| Registration: | N622MP |
| MSN: | 4016 |
| Year of manufacture: | 2006 |
| Total airframe hrs: | 273 hours |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Sacramento, California -
 United States of America
|
| Phase: | Taxi |
| Nature: | Training |
| Departure airport: | Sacramento-Executive Airport, CA (SAC/KSAC) |
| Sacramento-Executive Airport, CA (SAC/KSAC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter flight instructor reported that the student was practicing quick-stops on the taxiway. The student was hovering with a tailwind and began to accelerate when the helicopter started a "fast yaw to the right." He added that they stopped the acceleration, checked the engine gauges, and then accelerated again. As the helicopter was going through effective translational lift, it spun to the right. The flight instructor took the flight controls, noticed the rpm was high, and reduced the throttle. The helicopter impacted the ground backward and slid before coming to rest.
The helicopter sustained substantial damage to the vertical stabilizer.
The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
A review of recorded data from the automated weather observation station located on the airport reported that, about 37 minutes before the accident, the wind was from 190° at 7 knots. The helicopter was taxiing to the north.
Probable Cause: The student pilot's failure to maintain yaw control and the flight instructor's delayed remedial action.
Accident investigation:
 |
|
Sources:
NTSB GAA17CA514
History of this aircraft
Other occurrences involving this aircraft
| 10 April 2018 | N622MP | Capitol Helicopters | 0 | Franklin, California | |
sub |
| 29 September 2022 | N622MP | RJH, LLC | 0 | Nashville-John C. Tune Airport, TN (KJWN) | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Oct-2022 13:28 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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