What was found
***ENTERING FOR HISTORICAL DATA*** DURING OPERATIONAL CHECK FLIGHT AT 39500', MACH .85 WITH SPED BRAKES DEPLOYED, AILERON TRIM STUCK SOLID AND COULD NOT BE MOVED FOR REST OF FLIGHT. AFTER ENGINE SHUTDOWN, TRIM COULD BE MOVED BUT FELT STIFF.///SIGN-OFF///INSPECTED AILERON TRIM WHEEL , TRIM TAB ACTUATOR AND CABLE RUN FROM PEDESTAL TO AILERON TRIM TAB WITH NO DEFECTS NOTED. PERFORMED AILERON TRIM TAB CABLE TENSION CHECK AND FOUND BOTH AILERON TRIM TAB CABLES TO BE OUT OF LIMITS (28 LBS). RE-TENSIONED AILERON TRIM TAB CABLES TO 42 LBS +/- 10%. AT 50 DEG. F (SUBTRACTED 1.5 POUNDS FOR EVERY 10 DEG. BELOW 70 DEG. F) IN ACCORDANCE WITH G450 AMM CH. 27-12-07. TENSIOMETER # 567269 CAL. DUE: 02/20. REMOVED AND REPLACED AILERON TRIM TAB ACTUATOR PER ITEM 11.5 CMP 271002 AND PERFORMED AILERON TRIM SYSTEM RIGGING CMP 271204 ITEM 11.3 WITH NO DEFECTS NOTED.