As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WO 198966 NR 500035 HEAVY CHECK COE/MAJOR REPAIR: L/H WING REAR SPAR UPPER STRIP SLAT HAS LEVEL 2 CORROSION AROUND FASTENER HOLES BETWEEN RIBS 13-21 ON THE UPPER SURFACE. CORRECTIVE ACTION: REPAIRED PER SRAS S572K0006...15229 ISSUE B, DATED 10/16/2019.