As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REMOVAL OF FASTENERS ON RT REAR SPAR UPPER INBD T/E PANEL, SUSPECT CORROSION SPREAD BEYOND WBL 130.50 TO UNDER ADJACENT PANEL 113N1612 UPPER CHORD. REPAIRED IAW EA F-5720-129619. REPAIR IS CLASSIFIED AS MAJOR REPAIR IAW GMM 6-2-100.