As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN L/H FLOOR, STA 340 LBL 22 INNERCOSTAL HAS CORROSION AT END OF SEAT TRACK GROUNDED - YES. CORROSION REMOVED FROM AREA. ORIGINAL MAT THIC .125, REMOVED .006, .119 MAT THIC REMAININING. FOUND TO BE WITHIN LIMITS PER B737-800 SRM 53-10-51-1A-1. ALODINED AND PRIMED BARE METAL PER B737-800 AMM ASA 51-21-41 AND 51-21-72.