As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING L/E NR 4 SLAT PANEL NR 522HB T/E WEDGE TOP SKIN INTERNAL SURFACES WITH CORROSION. LT WING L/E NR 4 SLAT, T/E WEDGE REPLACED. REFER TO THE MFG REPAIR ORDER DISCREPANCY WORKSHEET AND FAA FORM 8130-3 WITH TRACKING NRS FA2009/0282 AND NSFC187868-002 , RESPECTIVELY.