As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR STR AT L-1 DOOR STA 324 TO 377 LBL 60 HAS AREAS OF CORROSION AROUND NUT PLATES. REMOVED CORROSION AT FLOOR STRUCTURE FROM F STA 324 TO 377 FOUND OUT OF LIMITS IN 3 EA FLOOR SUPPORTS LBL 60 IAW SRM 53-00-04. REMOVED AND REPLACED WITH NEW FLOOR SUPPORTS PN'S 141N5170-39,-40, -48 AND INSTALLED IAW SRM 51-40-02 THIS IS A MAJOR "A' REPAIR NO FOLLOW-UP INSP REQUIRED.