ASN Wikibase Occurrence # 289417
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| Date: | Wednesday 6 April 2011 |
| Time: | 11:10 LT |
| Type: |  Robinson R22 BETA |
| Owner/operator: | Upper Limit Aviation |
| Registration: | N268SH |
| MSN: | 4233 |
| Year of manufacture: | 2007 |
| Total airframe hrs: | 2354 hours |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Salt Lake City, Utah -
 United States of America
|
| Phase: | Approach |
| Nature: | Training |
| Departure airport: | Salt Lake City International Airport, UT (SLC/KSLC) |
| Salt Lake City, UT (U42) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The certified flight instructor said he and his student were flying the helicopter in the traffic pattern on the downwind leg. The student pilot was flying and the instructor told him to reduce the power to begin the descent for the base turn to final. The student reduced the power by approximately 1 inch of manifold pressure. The instructor then took control of the helicopter and reduced the power by an additional 6 or 7 inches of manifold pressure. He said that the student pulled the mixture control out to the idle cutoff position, which resulted in a loss of engine power. The student had intended to apply carburetor heat and instead inadvertently moved the mixture control, which was located next to the carburetor heat. The instructor turned the helicopter 180 degrees into the wind and simultaneously entered an autorotation from 300 feet above the ground. His selected landing site turned out to be a school yard with children present. He maneuvered the helicopter to a new landing site, but subsequently landed hard. The landing skids were spread and the main rotor cut off the tail boom.
Probable Cause: The student pilot's inadvertent action of pulling out the engine's mixture control lever to idle cutoff that resulted in a complete loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB WPR11CA189
History of this aircraft
Other occurrences involving this aircraft
| 31 May 2008 | N268SH | Upper Limit Aviation LLC | 0 | South Valley Regional Airport, West Jordan, Salt Lake City, Utah | |
w/o |
| Loss of control | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Oct-2022 13:31 | ASN Update Bot | Added |
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