As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FLAP TRACK SUPPORT STIFFENER AT BS727A COMMON TO STR20L IS CHAFED. REMOVED CHAFED DAMAGED STIFFENER AT BS727A COMMON TO STR20L LT FLAP TRACK SUPPORT IAW SRM 51-40-02-0G-0. NO DAMAGE LIMITS GIVEN IN SRM. PART IS REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0. LOCATED AND DRILLED NEW STIFFENER IAW SRM 51-40-05-0G-0. INSTALLED ALL IAW SRM 51-40-02-0G-0 AND DWG 149A7506 13656R 23MAY2020.