What was found
FWD CARGO COMPT; WEB UNDER DR CUTOUT THRESHOLD HAS SEVERAL AREAS OF CORROSION. MARKED / REMOVED CORROSION AT FWD PIT THRESHOLD WEB (UPPER SURFACE) IAW B737-700 SRM 53-30-15-1A-1 STEP 7A. EVALUATED LOSS ON WEB ORIGINAL T. .056 LOSS. .039 REMAINING .017 FOUND OUT OF LIMITS IAW B737-700 SRM 53-31-15-1A-1 STEP H AND G FIG 103 DETAIL A-A USED AAR TOOL 36647 CAL DUE 5/15/18. LOCATED AND DRILLED NEW WEB P/N 654A003-58 ATAG # A67122 IAW BOEING DWG #143A8330 REV B APPLIED CIC ON NEW WEB AND ENCLOSED AREA IAW B737-700 AMM 51-21-91-620-802. INSTALLED WEB; WET IAW BOEING DWG. 143A8330 REV B.