As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING LOWER WING PLANK IS CHAFED AT APPROXIMATELY LBL 45 FROM CONTACT WITH FAIRING 193AB. C-CHECK RO 12/30/2020. REPAIRED LEFT WING LOWER WING PLANK AT LBL 45, IAW REO. NO MEASUREABLE WEIGHT CHANGE. MAJOR REPAIR TASK & M337 COMPLETED AND ATTACHED.