What was found
LT WING SPLICE PAN OF INBOARD SLOT CRACKED XW 257.5 INBOARD SLOT INNER SKIN CRACKED. 6 INCH CRACK IN LE UPPER RIB XFS 291.5. REMOVED SPLICE PAN AND INNER DOUBLER AT LT WING STATION XILD 42. CLEANED SURROUNDING AREA IAW DC-8 SRM 51-1-8. FABRICATED REPAIR PARTS IAW DC-8 DPS 4.710. TREATED AND PRIMED REPAIR PARTS IAW DC-8 SRM 51-1-8, 51-1-11. DRILLED STOP HOLE AT END OF RIB CRACK 0.25 DIAMETER. REPAIRED CRACKED RIB IAW DC-8 SRM 57-2-0 FIG 2 SH 2. INSTALLED SPLICE PAN P/N ARW 5769859050598 AND SLOT SKIN IAW DC-8 SRM 57-3-3, FIG 3 SH 3, ITEM J, 51-1-20D AND 51-1-21. ARROW AIR CONTROL NR 1036. FCT NRC 0886. WORK ORDER NR 020663.