As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING I/B MAIN FLAP LOWER SURFACE AT MLG AFT TRUNNION FAIRING CONTACT HAS CHAFFING WEAR MARKS. EVALUATED L/W I/B MAIN FLAP LE LOWER SURFACE CHAFFED AND FOUND TO BE WITHIN ALLOWABLE LIMITS AND RESTORED FIBERGLASS OUTER PLY ON LE AND NO DEFECTS NOTED IAW B757 SRM 57-53-01-1A,57-53-01-2R FIG 201 SHEET 1 REPAIR 2.