ASN Wikibase Occurrence # 164800
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| Date: | Saturday 8 March 2014 |
| Time: | 13:30 |
| Type: | Barrows Bearhawk Patrol |
| Owner/operator: | Private |
| Registration: | N123WW |
| MSN: | P002-P05/P06-12 |
| Year of manufacture: | 2013 |
| Total airframe hrs: | 46 hours |
| Engine model: | ECI OX-360-H4A1N |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | South Valley Regional Airport (U42), Salt Lake City, UT -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Bountiful, UT (KBTF) |
| Salt Lake City, UT (U42) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, during the landing roll, the airplane slowed to about 10 to 15 mph as it came abeam four helicopters on a taxiway. The pilot further reported that the airplane’s left side encountered a sudden blast of air and that the left wing lifted; he attributed the blast of air to rotor wash from the helicopters. The airplane spun hard to the right, exited the runway into a dirt area, and then stopped facing 180 degrees in the opposite direction. The left wing tip struck the ground during the excursion and sustained substantial damage. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
The four pilots in the helicopters on the taxiway were conducting engine health indicator test checks using 30 percent power with two engines operating and 60 percent power with one engine operating, which was about half the power needed to hover. Federal Aviation Administration guidance advised pilots of small aircraft operating around helicopters to avoid operating within about three times the diameter of the helicopters’ main rotor blades. The distance between the airplane and the helicopters when the airplane passed them abeam was calculated to be about 400 ft, which was over six diameters away; therefore, helicopter rotor wash likely did not contribute to the pilot’s loss of directional control.
Probable Cause: The pilot’s failure to maintain directional control during the landing roll.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N123WW
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Mar-2014 19:59 | Geno | Added |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 13:40 | ASN Update Bot | Updated [Cn, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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