What was found
EICAS STATUS MSG FLIGHT CONTROL SYS NOTE. NR 1 SPOILER DOESN'T FULLY STOW. REPLACED ACTUATOR. DURING OPS TEST FOUND RVDT OUT OF RANGE. CHANGED HARNESS, NO HELP. CONTINUING TO T-S. REPLACED PCU NR 1 SPOILER, CHECKED ADJUSTMENTS FELL WITHIN LIMITS IAW AMM. PERFORMED LEAK CHECK, OPS CHECKED GOOD. WIRE HARNESS W8393 HAS LOW RESISTANCE 37K TO 200K BETWEEN WIRES 10RG-22 & 1YEL-22 & 1GRN-22. NEW HARNESS INSTALLED AND SECURED FROM WHEEL WELL TO JUST INBD OF FLAPERON. OUTBD CONNECTOR INSTALLED AND SECURE. SECURED WIRE HARNESS WITH CLAMPS & LACING FROM OUTBRD EDGE OF INBOARD FLAPERON TO OUTBRD FLAP. COMPLETED INSTALLATION OF OUTBOARD 20FT OF HARNESS CLAMP AND LACING CORD.