What was found
AILERON CONTROL: PLEASE EVALUATE THE AILERONS AND CABLES. THE PLANE WAS LEFT OVERNIGHT WITH THE GUST LOCK ENGAGED AND THE YOKE LEVEL. WHEN WE ARRIVED TO PREFLIGHT THE NEXT DAY, WE FOUND THE GUST LOCK STILL ON, THE YOKE MOVED FULL LEFT, THE LEFT AILERON UP AND THE RIGHT AILERON DOWN. MCC REPORTED ONLY THE SERVICE HUB HAD ACCESSED THE PLANE, NO OTHER MAINTENANCE PERFORMED. SIGNATURE LINE REPORTED THAT WE WERE PARKED IN CLOSE PROXIMITY TO OTHER PLANES ALL DAY. SUSPECT JET BLAST OVERPOWERED THE GUST LOCK. CORRECTIVE ACTION: AILERON CONTROL SYSTEM EVALUATED. NO DEFECTS NOTED. OPS CHECK GOOD. IAW CL350 AMM 27-11-00-710-802.