As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED C-CHECK INSPECTION, DISCOVERED AFT FUSELAGE FLOOR SUPPORT FRAME AT STATION 951 FROM LBL 20 TO LBL 36 HAS LEVEL 2 CORROSION. REMOVED FLOOR SUPPORT FRAME, FABRICATED AND INSTALLED FRAME REPAIR IAW BOEING SRM 53-10-2 AND 51-30-2. (M)