As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WO 235607 NR 500020 HEAVY CHECK COE/MAJOR REPAIR: L/H WING OUTBOARD REAR FLAP TRAILING EDGE STRIP SLAT HAS MULTIPLE AREAS OF LEVEL 2 CORROSION RIBS 13L-21L. CORRECTIVE ACTION: REPAIRED PER SRAS ES_0158671_01...18957 ISSUE A, DATED 5/12/2022.