What was found
FWD CARGO DOOR SCUFF PLATE SUB FRAME HAS CORROSION IN MULTIPLE LOCATION. GROUNDED - YES. REMOVED CORROSION ON FWD CARGO THRESHOLD WEB ORIGINAL THICKNESS .045, REMOVED .012, REMAINING .033, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-15. REMOVED DAMAGE WEB, LOCATED AND DRILLED NEW WEB P/N 143A8122-10, PO:1130356.2 AND INSTALLED WEB IAW B737-900ER SRM 51-40-02, SRM 51-40-05 AND BOEING DWG:143A88330 REV: G.