As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MINOR REPAIR - DURING C-01 CHECK A 8.5 INCH CRACK WAS FOUND AT THE AFT END OF THE NR 1 PYLON INBOARD UPPER FAIRING WELDED ASSEMBLY, NAC STA 5369-6077, BETWEEN RIBS 7 & 8. MAINTENANCE REMOVED AND REPLACED WELDED ASSEMBLY INBOARD SIDE OF NR 1 PYLON IAW AMM SUBTASK 54-57-22-020-050-0A2.