What was found
FWD CARGO PIT, STA 500I AT AFT BULKHEAD TO FLOOR PANEL ANGLE HAS CORROSION AT FASTENER HOLES FOR PANEL. GROUNDED - YES. EVALUATED ORIGINAL MATERIAL THICKNESS .071, REMOVED .071, REMAINING .000 100% MATERIAL LOSS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-30-08-1A-1. REMOVED DAMAGED RAIL. LOCATED AND DRILLED NEW RAIL PN-143A9485-35 PO-1113272.2 AND INSTALLED IAW B737-800 SRM 51-40-02, SRM 51-40-05 AND BAC DWG 143A7904 REV. A.