What was found
FLIGHT DIVERTED DUE TO RT HYDRAULIC SYS QUANTITY LOSS. CREW MANUALLY EXTENDED LANDING GEAR DUE TO ZERO HYD PRESSURE INDICATING DURING APPROACH. MAINTENANCE FOUND EVIDENCE OF HYD LEAKAGE IN RT WHEELWELL AND NOTED A FITTING SHEARED FROM THE DUAL BRAKE CONTROL VALVE HOUSING BODY. THE VALVE WAS REPLACED AND BOTH HYD SYSTEMS WERE SERVICED INCLUDING A FULL FUNCTIONAL CHECK OF BOTH HYD SYSTEMS FOR PROPER OPERATION. A DUAL ENGINE RUN, PNEUMATIC DUCT BURNOUT & HYD FILTER REPLACEMENTS WERE ALSO ACCOMPLISHED WITH NO ADDITIONAL FINDINGS. A CORRESPONDING LOG SHEET INDICATES THE ACFT EXPERIENCED A LOSS OF BRAKE ACTUATING FORCE WHILE THE ACFT WAS IN MOTION ON THE GROUND.