As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON CABIN FLOOR STRUCTURE SEAT TRACK Y-254 FR 18 +6" STR 23R; REMOVED CORROSION ON CABIN SEAT TRACK Y-254 FR 18 +6 STR 23R VERIFIED BEYOND LIMITS REMOVED AND REPLACED IAW SRM 53-11-14-283-004 AND 51-72-11. WORK ACCOMPLISHED PER PRODUCTION NUMBER 440484-26696