As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT WET AREA SHEAR WEB HAS CORROSION STA 986 RBL 40. GROUNDED - YES. CORROSION FOUND TO BE BEYOND LIMITS IAW B737-900 SRM 53-70-51-1A-1 REMOVED DAMAGED SHEAR WEB AND INSTALLED NEW WEB IAW B737-900 SRM 51-40-02-0G-0W= 1.25" O= .043" R= .036" L= 1.5" D= .007".