As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A LOUD "BANG" FOLLOWED BY A STRONG VIBRATION OCCURRED ON ROTATION DURING TAKEOFF. FLIGHT RETURNED TO ORD AND LANDED WITHOUT INCIDENT. FOUND LEFT NOSE GEAR DOOR STOP CABLE BROKEN. DEFERRED CABLE ASSEMBLY PER MEL 32-7 AND CHECKED FOR DOOR SECURITY. AIRCRAFT RETURNED TO SERVICE.