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 Y765 FR 16 STR 23L; REMOVED CORROSION ON CABIN SEAT TRACK Y765 FR 16 STR 23L VERIFIED BEYOND LIMITS. REMOVED AND REPLACED IAW SRM 53-11-14-283-004 AND 51-72-11. ALL WORK ACCOMPLISHED UNDER NR 440484/26697