As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - FLT 09 - AFTER TAKEOFF AFTER GEAR RETRACTION STRONG VIBRATION FROM NOSE GEAR AREA. EXTENDED GEAR AND DUMPED FUEL. AIRCRAFT RETURNED TO LAX WHERE IT MADE AN UNEVENTFUL LANDING. REMOVED AND REPLACED NOSE GEAR DOOR ACTUATORS, OPS CHECK OK. (M)