ASN Wikibase Occurrence # 146792
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| Date: | Monday 16 July 2012 |
| Time: | 12:05 |
| Type: |  Robinson R22 Beta II |
| Owner/operator: | Upper Limit Aviation |
| Registration: | N47WH |
| MSN: | 3525 |
| Year of manufacture: | 2003 |
| Total airframe hrs: | 1611 hours |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Location: | Skypark Airport, Woods Cross, Bountiful, Utah -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Salt Lake City International Airport, Salt Lake City, Utah (SLC/KSLC) |
| Skypark Airport, Bountiful, Davis County, Utah (BTF/KBTF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While performing a simulated power-off auto rotation with a power recovery, the certified flight instructor (CFI) and student noted that the main rotor rpm was decaying. About 150 to 200 feet above ground level (agl), the instructor took the flight controls, executed a flare about 50 feet agl, and realized that the helicopter was going to settle. The instructor then attempted a run-on landing, but the helicopter landed hard, spreading the skid landing gear and damaging the rotors, frame, engine and transmission. The helicopter then slid about 75 feet down the runway, departed the runway surface, and rolled four times before coming to rest on its left side. The CFI stated that there were no mechanical problems with the helicopter prior to the accident.
Probable Cause: The student’s failure to maintain adequate rotor rpm and the flight instructor’s delayed remedial action, which resulted in a hard landing.
Accident investigation:
 |
|
Sources:
NTSB
2. FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=47WH
3. http://www.kathrynsreport.com/2012/07/helicopter-crashes-skypark-airport-kbtf.html
4. https://www.deseretnews.com/article/865559144/No-injuries-in-Woods-Cross-helicopter-crash.html
History of this aircraft
Other occurrences involving this aircraft
| 30 November 2017 | N47WH | Tumbleweed Leasing Co Inc | 0 | Truckee-Tahoe Airport (TRK/KTRK), CA | |
sub |
| Heavy landing | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Jul-2012 22:01 | dens69 | Added |
| 19-Jul-2012 08:45 | Geno | Updated [Time, Operator, Location, Departure airport, Destination airport, Source, Narrative] |
| 26-Sep-2016 20:24 | Aerossurance | Updated [Aircraft type, Location, Source, Narrative] |
| 10-Oct-2016 17:57 | Dr.John Smith | Updated [Location, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 20:56 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
| 02-Sep-2018 23:45 | Dr.John Smith | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
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