As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VIBRATION AND NOISE COMING FROM NOSE GEAR AREA AFTER TAKEOFF. FLIGHT WAS RETURNED TO MCI AND LANDED WITHOUT INCIDENT. EMERGENCY WAS DECLARED DUE TO OVERWEIGHT LANDING CONDITION. MAINTENANCE FOUND LEFT NOSE GEAR DOOR LINK BROKEN. REPLACED LINK AND LEFT NOSE GEAR DOOR ASSEMBLY WHICH WAS DAMAGED.