As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK FOUND RT UPPER WING SURFACE HAS SEVERAL AREAS WITH CORROSION. AREAS ARE BETWEEN STA XRS 107.000 AND XRS 139.000, AT REAR SPAR APPROXIMATELY (DOT-6022). REMOVED CORROSION, FOUND AREA OUT OF LIMITS. REPAIRED AREA IAW DER NR 961ALE.005D-2. REF: OPERATOR CONTROL NR 07068.