What was found
DURING ROUTINE C CHECK, FOUND LEFT WING LEADING EDGE UPPER RIB CRACKED AT STATION XFS 464.000. REMOVED DAMAGE. FABRICATED REPAIR PARTS, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, INSTALLED REPAIR PARTS AND NEW FASTENERS AT LEFT WING LEADING EDGE UPPER RIB AT STATION XFS464.000. IAW DC8 SRM 57-3-1, 51-1-4, 51-1-5, AND 51-1-8.