What was found
MCI - DURING OP 16 MAINTENANCE CHECK FOUND ON RT WING, THE CENTER AND INBD FWD FLAP HINGE CASTING HAD BADLY PITTED MOUNT HOLES. INSTALLED NEW FLAP HINGE CASTING PER MM 57-40-01, PG 201 TO PG 205. ACFT TT: 77,210 HOURS. ACFT TC: 84,221. (X)