What was found
DURING ROUTINE C CHECK, FOUND RIB CRACKED AT STATION -175 FORWARD BULKHEAD RIGHT LOWER SECTION. REMOVED FASTENERS AS NEEDED TO REMOVE DAMAGED RIB. FABRICATED NEW RIB, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, INSTALLED NEW RIB AND FASTENERS AT STATION -175 FORWARD BULKHEAD RIGHT LOWER SECTION IAW DC8 SRM 51-1-21, 51-1-4, 51-1-5, AND 51-1-8.