ASN Wikibase Occurrence # 215505
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| Date: | Saturday 5 June 2010 |
| Time: | 10:40 |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Universal Air Academy |
| Registration: | N7028U |
| MSN: | 2890 |
| Year of manufacture: | 1998 |
| Total airframe hrs: | 1728 hours |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Location: | Brackett Field Airport, La Verne, California -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Brackett Field Airport, La Verne, California (KPOC) |
| Brackett Field Airport, La Verne, California (KPOC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated that during approach he noticed the trim was still on. He reached down to turn it off by feel while he was visually focused outside the helicopter and concentrating on the approach. The pilot reported that the trim knob was stuck in the "up" position and he applied increasing pressure until it moved. He said that while focused on the approach, he "blindly checked the status of the trim knob," and that he "unintentionally and without explanation pulled the mixture control up." The pilot reported that the engine instantly turned off and the low rotor RPM system activated, followed by the pilot entering an autorotation. The engine stopped at a height of approximately 50 feet above ground level (agl) and that the helicopter touched down in the dirt and rolled onto the pilot's side. The pilot reported no mechanical failures or malfunctions prior to the accident.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A loss of engine power due to the pilot's inadvertent movement of the mixture control.
Accident investigation:
 |
|
Sources:
1. NTSB Accident Number: WPR10CA278 at https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20100605X53131&AKey=1&RType=HTML&IType=CA
2. FAA Registration: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N7028U
3. http://helihub.com/2010/06/05/05-jun-10-n7028u-robinson-r22-la-verne-us-california/
4. http://helicoptersafety.blogspot.com/2010/06/05-jun-10-n7028u-robinson-r22-la-verne.html
5. http://www.avclaims.com/N7028U.html
6. Photo of accident damage: http://www.avclaims.com/N7028U%20Photos.htm
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Sep-2018 22:52 | Dr.John Smith | Added |
| 19-Sep-2018 22:53 | Dr.John Smith | Updated [Source] |
Corrections or additions? ... Edit this accident description
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