What was found
LEFT WING SLAT DRIVE MECHANISM DOOR INBD LE CRACKED TO RIVET. REMOVED PANEL 518DB FOR SHEET METAL ACCESS. REMOVED REQUIRED FASTENERS & TRIMMED OUT CRACK IAW SRM 51-30-00 VOL 2 & SRM 57-10-00 REPAIR. NEEDS HFEC FOR CRACK CONTAINMENT. FABRICATED FILLER PO 16433962 7075-T6 090 & DOUBLER PO 2111898 .063 6AL-4V TITANIUM. REPAIR DOUBLER & FILLER PLUG OK TO INSTALL. INSTALLED REPAIR IAW TEMP EA 8-5710-T0308209. COMPLIED WITH EA 8-5710-T0308209 WINGS & BASIC WING STRUCTURE & LT WING LE SKIN AT XOS 490 CRACKED. OK FOR CON'T SERVICE.