As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WO 223107 NR 903015 HEAVY CHECK COE/MAJOR REPAIR: WHILE PERFORMING PERMANENT REPAIR, ADDITIONAL LEVEL 2 CORROSION FOUND ON REAR SPAR UPPER CHORD BETWEEN RIBS 3L-4L OUTBOARD OF RIB 4L. CORRECTIVE ACTION: REPAIRED PER SRAS ES-0092053_01/19...14067 ISSUE B, DATED 3/4/2021.