What was found
LEADING EDGE FLAP TRANSIT LIGHT ILLUMINATED BETWEEN 5-15 PERFORMED QRH 9.14. CREW INITIATED GO AROUND AND DECLARED EMERGENCY, AND FLIGHT LANDED SAFELY ON SECOND APPROACH. PERFORMED FIM TASK 27-51 #830, TASK #803 & TASK 820. PERFORMED LEADING EDGE CONTROL SYSTEM TEST REF M/M 27-51-00-820-801. ALL TESTS PASSED. FOUND CORROSION AT CONNECTORS D11818 #8 SKEW SENSOR & D42210 RT FLAP SENSOR. CLEANED CONNECTORS. OPS CK GOOD. REMOVED & REPLACED O/B FLAP O/B SKEW SENSOR NO.8 PRECAUTIONARY, VERIFIED SENSORS IN RIG & REPLACED CONNECTOR REF AMM 27-59-01 & WDM 27-53-21.