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 Y1292 FR 20 STR 23R; REMOVED CORROSION ON CABIN SEAT TRACK Y1292 FR 20STR 23R VERIFIED BEYOND LIMITS REMOVED AND REPLACED IAW SRM 53-11-14-283-004 AND 51-72-11. ALL WORK ACCOMPLISHED UNDER NR 440484/26693