What was found
AILERONS BINDING AND AUDIBLE SNAP SOUND DURING FLIGHT CONTROL CHECK. BOTH CONTROL COLUMNS AND BOTH DIRECTIONS. LT COLUMN BINDING AT LT DEFLECTION, RT COLUMN BINDING MID AND 1/2 DEFLECTION. C/W PARA 4 OF GREO 601R-27-11-031 "DISPOSITION FOR ACFT DISPATCH. REWORK" CLICKING APPEARS TO COME FROM CAPT SIDE CONTROL WHEEL SHAFT INTERFACE. LOOSENED NUT AND RETORQUED TO 550 INCH LBS CLICKING NOISE STILL PRESENT. REPAIR REQUIRED IAW GREO 27-11-031 DUE TO CLICKING/NOISE FEELING COMING FROM AILERON CONTROL WHEELS. REPAIR MUST BE C/W WITHIN 500 FLT HRS.