NTSB Identification: CHI91LA141.
The docket is stored on NTSB microfiche number 43089.
Accident occurred Friday, April 26, 1991 in EVANSVILLE, WI
Probable Cause Approval Date: 03/31/1993
Aircraft: TAYLORCRAFT BC12-D, registration: N61978
Injuries: 2 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 PERFORMING CROSSWIND TAKEOFFS AND LANDINGS AT A PRIVATE AIRPORT WITH A SOD RUNWAY. THE RUNWAY WAS POSITIONED BETWEEN TWO FIELDS THAT WERE FRESHLY PLOWED. THE TRACTOR WHICH HAD PLOWED THE FIELDS USED THE RUNWAY AS A CROSSING POINT BETWEEN THE TWO FIELDS BEING PLOWED CREATING RUTS ON ITS SURFACE. IRRIGATION EQUIPMENT STORED ON THE FIELD DURING THE WINTER MONTHS HAD ALSO LEFT RUTS ON THE RUNWAY'S SURFACE. DURING ONE OF THE PILOT'S LANDINGS THE AIRPLANE COLLIDED WITH A RUT, BOUNCED INTO THE AIR. DURING AN ATTEMPTED GO AROUND THE AIRPLANE DRIFTED TO THE RIGHT SIDE OF THE RUNWAY, DESCENDED INTO THE FRESHLY PLOWED FIELD AND FLIPPED OVER.

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

THE PILOT'S SELECTION OF UNSUITABLE TERRAIN FOR LANDING, NOT MAINTAINING DIRECTIONAL CONTROL AND ATTEMPTING A GO-AROUND WITHOUT SUFFICIENT AIRSPEED. A FACTOR WAS THE RUTTED RUNWAY SURFACE.

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