As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
31J - THE FOLLOWING WAS FOUND, CABIN SEAT TRACK LEFT OUTBOARD HAS HOLES .5 INCH DRILLED IN TOP THROUGH OUT. REMOVED AND REPLACED SEAT TRACK FROM STATION 520-540 IAW SRM 51-30-2. REMOVED AND REPLACED SEAT TRACK FROM STATION 727-727B IAW SRM 51-30-2. FABRICATED SEAT TRACK FROM STATION 727B-907 AND INSTALLED IAW SRM 53-10-5, N/R 71171/0782.