What was found
(CAN) DURING WALKAROUND, THE FLIGHT CREW OBSERVED A RIVET HEAD MISSING FROM THE OUTSIDE OF THE LOWER LUG OF THE LT FORWARD FLOAT STRUT. THE AIRCRAFT WAS FERRIED TO MAINTENANCE WHERE THE STRUT WAS REMOVED AND INSPECTED. THE RIVET STEM SHOWED SIGNS OF INTERNAL CORROSION. ALL OTHER RIVETS ON THE STRUT WERE INSPECTED SERVICEABLE. THE ONE RIVET WAS REPLACED AND THE AREA REPROTECTED. THE STRUTS ARE NOT TRACKED SO NO TIME IN SERVICE IS AVAILABLE.