As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO BWI FROM RIC, THE LOW HYDRAULIC LIGHT CAME ON. ON FINAL APPROACH TO BWI CREW NOTICED LOSS OF ALL HYDRAULIC PRESSURE. THE CREW PROCEEDED TO LAND SAFELY WITH THE AID OF THE DRAG CHUTE AND AIR BRAKING SYSTEM. MAINTENANCE REPLACED DEFECTIVE RIGHT MAIN GEAR ACTUATOR RETRACT HOSE, COMPLIED WITH GEAR AND BRAKE SYSTEM BLEEDING AND OPERATIONAL CHECK. INSPECTED AND REPLACED DRAG CHUTE. NO FURTHER DEFECTS NOTED.