NTSB Identification: CHI88FA178.
The docket is stored on NTSB microfiche number 37600.
Accident occurred Thursday, July 28, 1988 in OSHKOSH, WI
Probable Cause Approval Date: 11/28/1989
Aircraft: SONERAI IIL, registration: N398
Injuries: 1 Uninjured.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
THE PLT WAS ON A FLT TO OSHKOSH TO DISPLAY HIS ACFT AT AN EAA CONVENTION. WHEN HE ARRIVED, TRAFFIC WAS HEAVY & SPECIAL TRAFFIC PROCEDURES WERE IN EFFECT. INFO TO ATTENDEES ADVERTISED THAT RWYS 18 & 36 WOULD BE USED PRIMARILY FOR DISPLAY ACFT, WHILE THE EAST/WEST RWYS WERE INTENDED FOR ITINERANT ACFT; HOWEVER, THERE WAS NO RESTRICTION ON RWY USE, & WHEN REQUESTED, PLTS WOULD BE CLRD TO LND ON EITHER SET OF RWYS. DUE TO HVY TRAFFIC, WND INFO WAS GIVEN ONLY WHEN REQUESTED, BUT ATIS INFO WAS AVAILABLE. DRG ARR, THE PLT WAS INSTRUCTED TO ENTER TRAFFIC FOR RWY 36R (A TWY CONVERTED TO A RWY FOR THE FLY-IN). THE PLT HAD RECEIVED ATIS INFO & SAID HE WAS AWARE OF THE X-WND BEFORE LNDG. DRG THE LNDG, THE ACFT VEERED ABOUT HALF WAY OFF THE RWY. SUBSEQUENTLY, IT WAS DAMAGED BY THE EDGE LIGHTS & THE EDGE OF THE RWY.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:DIRECTIONAL CONTROL..NOT MAINTAINED..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:GROUND LOOP/SWERVE..INADVERTENT..PILOT IN COMMAND
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