What was found
DURING (D) CHECK, WING LOWER SKIN CORROSION FOUND AROUND SURGE TANK SUMP DRAIN VALVE AT WING STA 1487, BETWEEN STRINGERS S-5 AND S-6 LT SIDE. CORROSION DAMAGE IS REPAIRED BY BLEND OUT. REPAIR AREA IS SHOP PEENED AND HFEC INSPECTED. APPLIED ALODINE 1200 AND BMS 10-11 TYPE PRIMER. BLEND OUT AREA AROUND DRAIN VALVE FASTENER HOLE IS SPOT FACED. BACB30NW8 HILOK WITH BACC30N8 COLLAR IS INSTALLED WET WITH BMS 5 26 SEALANT IN .2460 TO .2480 INCHES DIAMETER HOLE. BMS 5 26 SEALANT IS APPLIED IN THE BLENDED CAVITY.