As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 7001, L/P 0928363) MTC TASK - CORROSION FOUND ON SEAT TRACK LBL 72 BETWEEN STA 1452 TO STA 1520 WHILE DOING CLOSET 3F-1L INSTALLATION MARKOUT. SEAT TRACK REPAIR CARRIED OUT AS PER B777-200 SRM 53-00-52 , FIG 202 REPAIR 3 WORK ACCOMPLISHED WITH ER/A 574714-14 REV ORIGINAL FOR DISPOSITION.