What was found
CREW REPORTED THAT THEY RECEIVED A HYDRAULIC 1 LOW QUANTITY MESSAGE IN FLIGHT. AFTER RECEIVING THE MESSAGE THEY RECEIVED A HYDRAULIC SYSTEM 1 FAIL MESSAGE. THE CREW PERFORMED AN ABNORMAL FREE FALL LANDING GEAR EXTENSION DUE TO THE HYDRAULIC SYSTEM 1 FAILURE. THE GEAR SHOWED DOWN AND LOCKED ON APPROACH. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE SERVICED THE NUMBER 1 HYDRAULIC SYSTEM WITH NO LEAKS NOTED. MAINTENANCE ALSO PERFORMED A LANDING GEAR FREE FALL CONDITION INSPECTION, WITH NO DEFECTS NOTED. LANDING GEAR SWINGS AND OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.