What was found
AFTER TAKEOFF, TRIED TO RETRACT FLAPS AND THEY ONLY WENT UP TO ABOUT 7 DEGREES, RECEIVED A FLAP DISAGREEMENT WARNING. WE THEN RETURNED FOR LANDING AT SLC. AFTER TOUCHDOWN THE FLAPS RETRACTED. BEFORE TAKEOFF WE GOT DE-ICED WITH FLAPS DOWN 45 DEGREES AS 50P. FOUND DE-ICE FLUID IN CANNON PLUGS ON LT OUTBOARD FLAP ACTUATOR. CLEANED AND SECURED PLUGS, CYCLED FLAPS NUMEROUS TIMES, NO DEFECTS NOTED AND OPS GOOD.