What was found
DISCOVERED CORROSION ON THE AFT CARGO DOOR CUT OUT FWD CORNER FITTING. DURING REMOVAL OF MIN OR SCRIBE MARKS ON THRESHOLD STRUCTURE, BLENDED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 51-73-11-001, REV 118, INSTALLED A NEW FITTING IAW SRM 51-72-11 -911-001, REV 118.