As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 256. FOUND EVIDENCE OF FUEL SEEPAGE AT LEFT O/B CANOE AREA. PERFORMED HFEC PER 190 51-10-08-250-803A01 AND DETAILED VISUAL INSPECTION FOUND ONE 7/8 INCH LONG CRACK ON BOTTOM WING SKIN INBD OF RIB 20 AND AT RUNOUT OF STR 26L. CRACK WAS REMOVED, HFEC ACCOMPLISHED, TWO DOUBLERS MANUFACTURED AND INSTALLED AS PER EC E13-323-01.