As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN #4 SEAT TRACK STA 662 LOWER CROWN HAS CORROSION / BLENDED AREA REMOVED .045 INCH WHICH IS BEYOND LIMITS PER SRM 53-00-52-1A-1. SEAT TRACK MPN IS 144A5350-3. SEAT TRACK #4 SECTION REPLACED FROM STA 540 TO 727B ON NON ROUTINE G689803.