What was found
RT LOWER WING SKIN IN GEAR WELL HAS VERIFIED CORROSION UNDER 7 FASTENERS. PERFORM TEXTRON MINOR REPAIR MEMO DQ27295M1 DATED: OCT 9, 2020 FOR RT LOWER CENTER WING SKIN. REMOVED 7 FASTENERS AND BLENDED 7 AREAS OF CORROSION ON RT LOWER WING SKIN IN GEAR WELL, IAW CESSNA 680 SRM 51-70-02. EVALUATED REMAINING THICKNESS AND SUBMITTED TO TEXTRON ENGINEERING. PERFORMED TEXTRON MINOR REPAIR MEMO DQ27295M1, TITLED "RIGHT-HAND LOWER CENTER WING SKIN CORROSION", DATED: OCT 9, 2020. INSTALLED 7 NEW FASTENERS IN SAME LOCATIONS, IAW CESSNA 680 SRM 51-40-03. DUNCAN AVIATION CONSIDERS THIS TO BE A MINOR REPAIR. CORROSION IS CONSIDER LEVEL 2, PER NJA GMM 2.2.2.