As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED C-CHECK INSPECTION DISCOVERED FLOOR SUPPORT BETWEEN FRAME 947-967 RIGHT APPROX BL40R HAS FLAKING CORROSION. FLOOR SUPPORT CORRODED OUT OF LIMITS. FABRICATED REPLACEMENT SUPPORT AND INSTALLED IAW B737 SRM 53-10-1, 51-10-2 AND 51-30-2. (M)