What was found
LT WING NR 5 LEADING EDGE SLAT TRAILING EDGE WEDGE DAMAGED, PNL ON TOP OF WING JUST AFT OF NR 5 SLAT ALSO DAMAGED. ENGINEERING IS CONDUCTING ADDITIONAL INVESTIGATIONS FOR CAUSES OF THIS TYPE OF FAILURE. FAILURE OF THE LAMINATE ON WING. LE SLATS IS A SYSTEMIC PROBLEM. ROOT CAUSE FOR FAILURE IS ATTRIBUTED TO EITHER MOISTURE INGRESSION/SATURATION OF TE WEDGE, VIBRATION AND/OR AERODYNAMIC FLUTTER, AND/OR RIGGING. ALTHOUGH MOISTURE AND FLUTTER CAUSES REQUIRE NO ELABORATION, RIGGING CAN LEAD TO SLAT BEING SUBJECTED TO DEFORMATION WHEN CYCLED THAT RESULTS IN FAILURE OVER TIME.