What was found
AFTER TAKEOFF MIA, EXPERIENCED LOUD NOISE AND VIBRATION IN NOSE LANDING GEAR AREA. RETURNED TO MIA AND LANDED WITHOUT INCIDENT. INSPECTION REVEALED THE CONDENSER RAM AIR DUCT DISCONNECTED DUE TO A BROKEN CLAMP. RE-INSTALLED DUCT, REPLACED CLAMP, PERFORMED OVERWEIGHT INSPECTION AND RETURNED AIRCRAFT TO SERVICE. (M)