What was found
INSPECTION TYPE:C-2 AFT LWR PIT BETWEEN STA 1440 TO 1460 AT LONG 27R IN TORQUE BOX WEB IS CORRODED. REMOVED WEB, INTERCOSTAL AND (2) ATTACH CLIPS IAW DC8 SRM 51-1-21A & 51-1-21. FAB NEW INTERCOSTAL, WEB, & REPAIR IAW DC8 SRM 53-2-0 & DAC DWG 5616674. REC'D LOCATED (2) NEW ATTACH CLIPS IAW DC8 SRM 51-1-2 4. INSTALLED IAW DC8 SRM 51-1- 20D & 51-1-21