What was found
WHILE TAXIING OUT, THE PILOTS FOUND THE BRAKES DIFFICULT TO ACTUATE SO THEY RETURNED TO THE FBO. MAINTENANCE FOUND THE LH MLG SPEED TRANSDUCER RETAINING SCREWS NOT FULLY ENGAGED INTO THE SPEED TRANSDUCER HOUSING. MAINTENANCE INSPECTED THE LH SPEED TRANSDUCER, ASSOCIATED WIRING AND SCREWS WITH NO DEFECTS FOUND. THEY REINSTALLED THE TRANSDUCER AND SCREWS, SAFTIED THE SCREWS AND REINSTALLED THE HUB CAP. MAINTENANCE TAXIED THE AIRCRAFT AND THE BRAKES OPS CHECKED GOOD. THEY CLEARED THE DISCREPANCY AND THE FLIGHT CREW LEFT WITH NO DIFFICULTIES.