What was found
LAX - FLT 09 - (LOG PAGE NR 4832289). AFTER TAKEOFF, VIBRATION FROM NOSE WHEEL DOOR. F.A. OBSERVED RT DOOR NOT RETRACTED. AIRCRAFT MADE AN UNEVENTFUL LANDING IN LAX. INSPECTED, FOUND NOSE DOOR DRIVE LINK BROKEN. REMOVED AND REPLACED DRIVE LINK, OPS CHECK GOOD. (X)