As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CBIN AFT WET AREA TRANSVERSE FLOORBEAM HAS EXFOLIATION CORROSION AT STA 950, RBL 25 TO RBL 54. MAINTENANCE REPLACED TRANSVERSE FLOORBEAM AT STA 950, RBL 25 TO RBL 54 PER BOEING DRAWING 815A0010 AND AARD 51-00-05-1.