What was found
FWD CARGO DOOR THRESHOLD HAS CORROSION MARKED IN RED. GROUNDED - YES. REMOVED LOWER SILL PLATE, BLENDED AREA ORIGINAL THICKNESS .050, MAT LOSS .017, NEW THICKNESS .033 AREA OUT OF LIMITS PER B737-900 SRM 53-00-01-1A-6. REMOVED DAMAGED WEB AND INSTALLED P# 654A0003-58 PER B737-900 SRM 51-40-05, SRM 51-40-02 AND BDWG 143A8330 REV A AND BDWG 143A8122 REV D REF NRC G2184705 FOR LOWER SILL PLATE INSTALL PO#1126440.1.