As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION DAMAGE ON THE LOWER FLANGE AND WEB OF A SEAT TRACK IN THE CABIN PER SRM 53-70-60 PARAGRAPH 8. THIS REPAIR MUST BE ACCOMPLISHED IF REMAINING LOWER FLANGE THICKNESS IS 80 PERCENT OR LESS OF ORIGINAL THICKNESS, AFTER REMOVAL OF THE CORROSION DAMAGE. CABIN SEAT TRACK LOWER FLANGE AND WEB CORROSION FOUND DURING 4K CHECK. REPAIRED PER EO NR S53342 AND SRM 53-70-60.