What was found
DURING ROUTINE C CHECK, FOUND RIGHT WING TRAILING EDGE UPPER RIB CRACKED AT STATION XW65. REMOVED FASTENERS AS NEEDED TO REMOVE DAMAGED RIB. FABRICATED NEW RIB. LOCATED, DRILLED TRIMMED, TREATED, PRIMED, INSTALLED NEW RIB AND FASTENERS AT RIGHT WING TRAILING EDGE STATION XW65. IAW DC8 SRM 57-1-0, 51-1-20, 51-1-21, 51-3-0, 51-1-4, 51-1-5, AND 51-1-8.