As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - FLT 1843 - AFTER TAKEOFF LAX WHEN LANDING GEAR RETRACTED, CREW NOTED VIBRATION FROM AREA OF NOSE LANDING GEAR. AIRCRAFT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. AFTER GATE ARRIVAL, NOSE LANDING GEAR DOORS WERE NOTED DOWN. RESEQUENCED NOSE LANDING GEAR DOORS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)