NTSB Identification: CHI87LA082.
The docket is stored on NTSB microfiche number 33028.
Accident occurred Wednesday, February 11, 1987 in OSHKOSH, WI
Probable Cause Approval Date: 03/30/1988
Aircraft: PIPER PA-28-235, registration: N9451W
Injuries: 4 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.

ACCORDING TO THE PLT, AT APRX 1800 FEET 'THE ENGINE ABRUPTLY QUIT WITH NO RUNON OR SPUTTER' FOLLOWING TAKEOFF FROM RWY 18 AT OSHKOSH, WI. THE PLT STATED THAT HE BANKED THE ACFT BACK TO THE AIRPORT, BUT THE AILERON CONTROLS BECAME JAMMED OR 'FROZEN'. ACCORDING TO THE PLT, HE FLARED THE ACFT IN A LANDING CONFIGURATION AND THE ACFT STRUCK A FENCE AND POSTS, AT WHICH TIME THE AILERON CONTROLS 'BROKE FREE.' THE ACFT CAME TO REST APRX 50 YARDS EAST OF THE TAXIWAY FOR RWY 18. AN ENGINE RUN-UP WAS PERFORMED AND NO DEFECTS WERE NOTED. NO RESTRICTIONS IN THE FLIGHT CONTROL CABLES WERE DETECTED AND THE AUTOPILOT ROLL SERVO BENCH TESTED SATISFACTORILY.

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

ENGINE ASSEMBLY..UNDETERMINED

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

FLT CONTROL SYST,AILERON CONTROL..JAMMED

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