As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - "C" - DURING C-14 CHECK CABIN FLOOR SUPPORT WAS CORRODED BEYOND LIMITS AT BS 279, LBL 28. MAINTENANCE REMOVED CORRODED SECTION OF CABIN FLOOR SUPPORT AT BS 279, LBL 28, FSBRICATED NEW FLOOR SUPPORT AND INSTALLED REPAIR IAW B737-200 SRM 51-30-2, PG. 32.