Final
None
May 12, 2021
N841BP accident at Yukon, OK
Aerospatiale AS350 B2 ECUREUIL — Loss of control in flight at KRCE (Yukon, OK)
DateMay 12, 2021
Tail numberN841BP
AircraftAerospatiale AS350 B2 ECUREUIL · Airbus AS350 AStar · AS50
LocationKRCE — Yukon, OK
Phase of flightManeuvering
OperationPublic use Instructional
InjuriesNone
NTSB caseCEN21LA216
Probable cause
The pilot receiving instruction’s untimely and unidentified inadvertent activation of the hydraulic cut-off switch, which turned off the hydraulic system while the helicopter was at slow airspeed followed by a rapid power increase, which resulted in a loss of control. Contributing was the pilot’s failure to relinquish control of the helicopter to the flight instructor when directed.
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