JUNEAU, AK, USA
N92740
PIPER PA-12
OVER A MOUNTAIN PASS THE ACFT ENCOUNTERED TURBULENCE THE PLT DESCRIBED AS 'SEVERE'. THE ACFT LOST 500 TO 1,000 FT AND TURNED 180 DEG. A 180 DEG CLIMBING TURN WAS INITIATED AND THE ACFT AGAIN FLEW INTO THE TURBULENCE. AFTER THE SECOND ENCOUNTER AILERON AND ELEVATOR CONTROL WERE NORMAL BUT RUDDER INPUTS WERE INEFFECTIVE. THE PLT REALIZED HE WOULD NOT BE ABLE TO CLEAR A RIDGE AHEAD AND FLEW INTO THE RISING TERRAIN IN A NOSE HIGH ATTITUDE. ON RECOVERY OF THE ACFT IT WAS NOTICED THAT THE RUDDER HAD FAILED ABOVE THE TOP HINGE POINT. A FLT PRECAUTION WAS ISSUED BY JUNEAU FSS WARNING OF MODERATE TO SEVERE TURBULENCE BELOW 5,000 FT, SPECIFICALLY NEAR MOUNTAIN PASSES. NO WX BRIEF WAS OBTAINED BY THE PLT.
Source: NTSB Aviation Accident Database
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