ROBINSON HELICOPTER R22 BETA
Lake Newman, WA — September 7, 2012
Event Information
| Date | September 7, 2012 |
| Event Type | ACC |
| NTSB Number | WPR12CA405 |
| Event ID | 20120907X10233 |
| Location | Lake Newman, WA |
| Country | USA |
| Coordinates | 47.80000, -117.10833 |
| Highest Injury | NONE |
Aircraft
| Make | ROBINSON HELICOPTER |
| Model | R22 BETA |
| Category | HELI |
| FAR Part | 091 |
| Aircraft Damage | SUBS |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 0 |
| Serious | 0 |
| Minor | 0 |
| None | 2 |
| Total Injured | 0 |
Event Location
Probable Cause
The flight instructor's failure to maintain clearance from terrain while correcting for the student pilot's failure to maintain directional control of the helicopter.
Full Narrative
While practicing low level hovering during a dual training flight, the student, who had accumulated two hours total flight time, was unable to maintain directional control. The flight instructor therefore took control of the helicopter and applied control inputs to arrest the student induced movement to the right and to the rear. As the helicopter began to move forward and to the left, the flight instructor inadvertently allowed the left skid to come in contact with the terrain. The contact with the terrain resulted in a dynamic rollover, with the helicopter coming to rest on its left side. According to the instructor, there was no indication of a mechanical malfunction.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.