What was found
DURING C-1 CHECK INSPECTION, FOUND FS 1220 LONGERON 30 TO 31 LT INNER DOUBLER CORRODED. REMOVED CORROSION, OUT OF LIMITS. REPAIRED, TREATED AND PRIMED IAW DC-8 SRM 51-1-8, 53-2-0 FIGURE 1F AND 53-2-0 FIGURE 1B. CORROSION CARD NR 5590-0551. NON-ROUTINE TASK CARD NR 89605, LEVEL 2.