What was found
ATB DUE TO L/E ASYMMETRY MSG ILLUMINATED. NO FLIGHT CONTROL ISSUES. CREW DECLARED AN EMERGENCY AND LANDED APPROXIMATELY 66,000 LBS. OVER WEIGHT. BITE OF PSEU SHOWED ONLY SENSOR S277 NR 2 SLAT OB AT FAULT. NO OTHER FAULTS NOTED. PERFORMED W/C 2780-7590 FOUND S277 RESISTANCE HIGH ON ELEC BREAKOUT BOX. R&R LEADING EDGE SLAT SENSOR SWITCH S277 PER AMM 27-88 AND TARGET SENSOR PER AMM 27-88. RESISTANCE STILL HIGH. CHECKED RESISTANCE FROM D4434P TO BREAKOUT BOX 4.7 OHMS. CLEANED CONNECTORS 4434J. RESISTANCE GOOD.