As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT MDCC SEAT TRACK NR1 (Y -0) HAS CORROSION AT 9" TO 12 " FWD OF FR 70 (ABOUT 3 SQ INCHES). REMOVED SEAT TRACK SECTION NR1 (Y -0) FROM BETWEEN FR 66 TO FR 73. FABRICATED AND INSTALLED NEW SEAT TRACK SECTION NR1 (Y - 0) FROM BETWEEN FR 66 TO FR 73 USING THE ORIGINAL PRODUCTION SPLICE SECTIONS, IAW SRM 53-10-16, FIG 101.