What was found
PDX FLIGHT NR 2133 PFCS - PUSH OFF SPOILER NR 2 LIGHT ILLUMINATED, COMPLIED WITH CHECKLIST. MAINTENANCE TROUBLESHOT, INSPECTED AND FOUND LEFT WING OUTBOARD SPOILER CLUTCH SWITCH WIRES AT 27-15-01. 19G22 AND 23C22N SHORTED TOGETHER FROM CORROSION IN ENVIROMENTAL SPLICING. REMOVED CORRODED SPLICE AND RE-SPLICED WIRING IAW MM TASK 20-45-07-300-802, SUBTASK 20-45-07-910-003, PARAGRAPH C(1) (Q)-J. PERFORMED OPERATIONAL TEST OF THE ROLL SPOILER CLUTCH SWITCHES IAW MM TASK 27-14-36-710-801. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.