As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT CARGO DOOR SILL WEB HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1 REMOVED AND REPLACED WEB IAW B737-800 SRM 51-40-02-0G-0W=1 O=.050 R=.040 L=6 D=.010.