NTSB Identification: LAX89LA055.
The docket is stored on NTSB microfiche number 38435.
Accident occurred Monday, November 21, 1988 in PALO ALTO, CA
Probable Cause Approval Date: 01/04/1990
Aircraft: Air & Space 18A, registration: N6113S
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 STATED THAT HE LOST DIRECTIONAL CONTROL OF THE GYROPLANE DURING THE LANDING ROLL, DEPARTED THE RWY AND NOSED OVER. THE GYROPLANE TOUCHED DOWN NORMALLY ON THE MAIN LANDING GEAR AT AN INDICATED AIRSPEED OF ABOUT 20 MPH. AS THE GYROPLANE SLOWED FURTHER, THE NOSE WHEEL TOUCHED DOWN ON THE RUNWAY AND TRACKED THE CENTERLINE FOR ABOUT TEN FEET THEN VEERED TO THE LEFT. THE PILOT STATED THAT HE ATTEMPTED TO CORRECT THE GYROPLANE'S GROUND TRACK BY APPLYING THE RIGHT RUDDER AND BRAKE, BUT THE GYROPLANE CONTINUED TO TIGHTEN IN THE LEFT TURN. INSPECTION OF THE NOSE GEAR ASSEMBLY REVEALED A CRACK IN THE NOSE WHEEL SHIMMY DAMPER UPPER PHENOLIC COLLAR. THE CRACK IN THE COLLAR RESULTED IN THE NOSE WHEEL STRUT BECOMING LOCKED AND NOT ALLOWING NOSE WHEEL STEERING.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:LANDING GEAR,NOSE GEAR ASSEMBLY..CRACKED
The National Transportation Safety Board determines the probable cause(s) of this accident to be:LANDING GEAR,NOSE GEAR STRUT..LOCKED
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