As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CORROSION ON RT LOWER BEAM SPAR CHORD HORIZONTAL FLANGE AT WING STA 228. REMOVED CORROSION AND FOUND OT OF LIMITS. CUT OUT DAMAGE AREA OF SPAR CHORD AND SHEAR TIE, FABRICATED REPAIRS AND INSTALLED PER SRM 51-30-10, 51-30-2, E.O. B727-5710-7434-A.