As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING O/B TRACK HAS AREAS OF PITTING RUST AND PITTING. REMOVED AND REPAIRED LEFT-WING O/B FLAP O/B TRACK IAW CMM 27-51-82 REPAIR 2-2 AND REINSTALLED IAW B757 AMM 27-51-15-424-003. ACCOMPLIAHED DURING C-CHECK REF AMES NR: 172653-0500-0033.