What was found
DURING A MAINTENANCE VISIT FOUND CORROSION, FUSELAGE, LT UPPER CUSP AT STA 400 FRAME ATTACH ANGLE SHIM FROM UNDER SHIM MARKED 12 NR 83. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. FABRICATED AND INSTALLED SHIM IAW DC8 SRM 51-1-21 AND 51-1-4. (CORROSION DAMAGE RECORDED IN EWA CORROSION PROGRAM).