As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTION IT WAS NOTED THAT THE STRUCTURAL PLATE ON OUTSIDE SKIN STRINGER 17L AT B.S. 846 HAS EXFOLIATION CORROSION. CORROSION WAS REMOVED, HFEC PERFORMED AND NEW DOUBLER WAS FABRICATED FROM 7075 T6 .063. NO OTHER DEFECTS WERE NOTED AIRCRAFT WAS RETURNED TO SERVICE.