What was found
DURING REPLACEMENT OF AFT TAIL COMPT BULKHEAD CAP-ANGLE, HORIZ AND VERT STABILIZERS REQUIRED REMOVAL. AFTER REMOVAL, TECH FOUND RECENT REPAIR ACCOMPLISHED BY 3RD PARTY REPAIR STATION HAD NUMEROUS ISSUES. REPAIR WAS ACCOMPLISHED, DUE TO FINDING CORROSION DURING 24 MONTH INSPECTION. STEEL STRAPS WERE REPLACED. FOUND FOLLOWING DISCREPANCIES: BETWEEN STA 0 TO 80.81 ON LT, RT LEADING EDGES. FOUND 200+ FASTENERS. MUCH SOFTER FASTENER AND IS NOT APPROVED FOR THIS INSTALLATION. CORROSION/RUST ON STEEL STRAPS, LT AND RT TOP SKIN-114 INCORRECT FASTENERS EACH SIDE. AFT SPAR-60 INCORRECT FASTENERS. CTR SECTION UNDER FAIRING WHERE STRAPS OVERLAP-110 INCORRECT FASTENERS. CORROSION FOUND ON STEEL STRAP IN PANEL.