NTSB Identification: CHI92LA081
Accident occurred Saturday, January 25, 1992 in MINNEAPOLIS, MN
Probable Cause Approval Date: 08/31/1993
Aircraft: ROBINSON R-22B, registration: N4046H
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT WAS PRACTICING RUN ON LANDINGS AND SIMULATED FORCED LANDINGS WITH AN AUTOROTATION AND A POWER RECOVERY. DURING ONE SUCH APPROACH HE SAID HE MISJUDGED HIS ALTITUDE AND FLIGHT PATH, AND STRUCK A SNOW BANK WITH THE TAIL ROTOR, CAUSING SUBSTANTIAL DAMAGE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

A MISJUDGED AUTOROTATION.

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