As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION WAS FOUND A CHAFING ON LT AFT FLAP INBOARD TRAILING EDGE STA IFS 108.25. DAMAGE WILL BE REPAIRED IAW EWO 767 57-008 AND BOEING SERVICE REQUEST ID: 1-171370438. FAA FORM 8100-9 MUST BE ISSUED APPROVING THIS REPAIR.