What was found
DURING REMOVAL OF SUBSTRUCTURE FOR STA 986 T-CAP REPAIR, ADDITIONAL CORROSION FOUND ON MACHINED INTERCOSTAL LBL32 STA 986 - STA 1006. GROUNDED - YES. REMOVED CORROSION. ORIGINAL MEASURED THICKNESS AT BLEND 0.225, REMAINING THICKNESS 0.195, REMOVED 0.030. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. DRILLED TO FIT NEW MACHINED INTERCOSTAL IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV- INTERCOSTAL INSTALLED ON N/R 35380 CUST CARD G1817380.