As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C19 CHECK DISCOVERED CORROSION ON THE R2 INNER CHORD FROM BS 947 TO BS 973, WL 208 AND BL 47R. EVIDENCE OF PREVIOUS BLEND OUT PRESENT. REMOVED CORROSION AND RE-WORK WAS FOUND TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-60-15-1A1 FIG 101. MAINTENANCE REMOVED THE R2 INNER CHORD AND REPLACED WITH NEW CHORD IAW BOEING 737-300 SRM 51-40-05-0G FIG 4.