What was found
PAX DOOR FWD ANCHOR FITTING PLATE WAS BADLY CORRODED (EXFOLIATION). THE CENTER SECTION OF THIS PLATE EXPANDED DUE TO THE CORROSION WHICH CAUSED THE FORWARD ANCHOR FITTING TO CRACK. ***AIRCRAFT REMOVED FROM SERVICE*** REMOVED AND REPLACED FWD PAX DOOR ANCHOR FITTING AND PLATE. CLEANED PAX DOOR SILL HINGE AREA AND VERIFIED DRAIN LINES OF OBSTRUCTIONS. REPLACED PAX DOOR SEAL DUE TO TEAR, C/W NDT AND DVI OF PAX DOOR FWD ANCHOR ANCHOR FITTING MOUNT AREA MATING SURFACE AND BOLT HOLES FOR EVIDENCE OF ADDITIONAL DAMAGE OR CRACKS. NONE NOTED.