What was found
MIA - FLT 5284 - ON APPROACH, THE BLUE HYDRAULIC SYSTEM LOW LEVEL LIGHT ILLUMINATED. THE CREW SHUT DOWN THE BLUE SYSTEM, DECLARED AN EMERGENCY. THE ACFT LANDED SAFELY, NO OTHER INCIDENTS WERE REPORTED. FOUND LOOSE FITTING ON THE BLUE SYSTEM PUMP PRESSURE LINE. REMOVED AND REPLACED FITTING, OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (X)