What was found
DURING ROUTINE C-CHECK FOUND LT WING TRAILING EDGE NR 4 SPOILER BAY THIRD RIB FROM FLAP HINGE FORWARD OB SIDE DOUBLER CRACKED AND MISSING FASTENERS. REMOVED DOUBLER. FABRICATED REPAIR PART, LOCATED, DRILLED, TRIMMED, DEBURRED, TREATED, PRIMED, INSTALLED REPAIR PARTS AND NEW FASTENERS IAW SC8 SRM 57-2-0, 57-5-0, AND 51-1-8.