NTSB Identification: CHI95LA015.
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Accident occurred Tuesday, October 18, 1994 in WHEELING, IL
Probable Cause Approval Date: 02/24/1995
Aircraft: QUESTAIR VENTURE, registration: N62V
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 EXPERIMENTAL AIRPLANE WAS LANDING IN A LIGHT CROSSWIND. THE PILOT STATED THE AIRPLANE TOUCHED DOWN ON THE UPWIND LANDING GEAR TIRE FIRST, FOLLOWED BY THE DOWNWIND MAIN LANDING GEAR TIRE. SHORTLY AFTER THIS THE NOSE GEAR TIRE TOUCHED DOWN AND THE AIRPLANE VEERED TO THE LEFT VERY RAPIDLY ACCORDING TO THE PILOT. THE AIRPLANE DEPARTED THE RUNWAY EDGE, ENCOUNTERED SOFT SOD AND CARTWHEELED TO THE LEFT. AN ON-SCENE INVESTIGATION REVEALED THAT THE NOSE GEAR STEERING AND BRAKES ARE HYDRAULICALLY ACTIVATED. IF THE BALL OF THE FOOT IS ABOVE THE RUDDER PEDALS PIVOT POINT THE NOSE WHEEL STEERING IS ACTIVATED AND PRE-LOADS THE SYSTEM. UPON TOUCHDOWN, THE NOSEWHEEL'S CENTERING DEVICE IS DEACTIVATED. THE PRE-LOADED HYDRAULIC PRESSURE IN THE STEERING SYSTEM WILL MAKE THE NOSEWHEEL TURN IN THE DIRECTION OF THE PEDAL THAT APPLIED HYDRAULIC PRESSURE TO THE SYSTEM.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE INADVERTENT DEPLOYMENT OF THE NOSEWHEEL STEERING. A FACTOR IN THIS ACCIDENT WAS THE INADEQUATE DESIGN OF THE RUDDER PEDAL PIVOT POINT HEIGHT ABOVE THE COCKPIT FLOOR BY THE DESIGN PERSONNEL. Full narrative available
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