What was found
FWD CARGO COMPT, INTERCOSTAL IS CORRODED ON BOTH SIDES BETWEEN STA 680-700, LBL 1. REMOVED INTERCOSTAL FROM BS 680-700, LBL 1, FOUND TO BE OUT OF LIMITS. FAB NEW INTERCOSTAL FROM 7075-0, .050", PO 9003137, DIM 20" X 8.5. HEAT TREATED TO T6 CONDITION IAW FLIGHTSTAR AIRCRAFT SERVICES ENGINEERING 2-37153-801 REV IR, TREATED, PRIMED & INSTALLED FAB INTERCOSTAL, ALL IAW B727 SRM 5-30-2, 53-10-1 FIG 1, 53-10-2 FIG 3 & 51-10-2.