What was found
DURING C-CHECK, NR 7 SLAT AT ACT ROD END HAS INBOARD ATTACH FRAME CRACKED IN LOWER FWD RADIUS. REMOVED CRACKED RIB, LOCATED, DRILLED AND INSTALLED NEW RIB P/N 65-17310-3, PO 413646 IAW B727 SRM 51-30-2 FIG 1 & 2. ACCOMPLISHED L/E FLAPS OP'S CHECK FOUND OK IAW B727 MM 27-81-0.