What was found
AIRCRAFT IN BASE MAINTENANCE: AFTER REMOVAL OF SCUFF PLATE FOUND CORROSION ON CORNER SHAPE SILL AT FR68 STGR 23RH. MAINTENANCE REPLACED CORNER SHAPE SILL AT FR68 STGR 23RH PER SRM 53-41-69-283-008, SRM 51-44-11-08, AND SRM 51-42-11-001.