What was found
MACHINED INTERCOSTAL STA 986 - 1006 LBL32 HAS CORROSION ON TOP SURFACE. GROUNDED - YES. BLENDED CORROSION. ORIGINAL MATERIAL THICKNESS 0.0063, REMOVED 0.035, 0.028 REMAINING AND CORROSION STILL VISIBLE. FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 PARA 4A.2 AND FIGURE 104 DETAIL F. DRILLED TO FIT NEW MACHINED INTERCOSTAL IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV A. MACHINED INTERCOSTAL INSTALLED ON CUSTOMER CARD G1862641 N/R 23641.