What was found
SEVERE VIBRATION AT LIFT OFF, VIBRATION STOPPED AT COMPLETION OF RETRACTION CYCLES. AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED NOSE LANDING GEAR TORQUE LINK CENTER PIN ASSEMBLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SEVERE VIBRATION AT LIFT OFF, VIBRATION STOPPED AT COMPLETION OF RETRACTION CYCLES. AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED NOSE LANDING GEAR TORQUE LINK CENTER PIN ASSEMBLY.