As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/AAIR TURNBACK - ON GEAR RETRACTION VIBRATION INCREASING UNTIL VIOLENT SHAKING & VIBRATION AT FULL RETRACTION. EXTENDED GEAR NORMALLY W/VIB SUBSIDING, BUT STILL PRESENTFOUND L/H NLG DOOR LINK MECHANISM BROKEN. R/R DOOR LINK MECHANISM IAW MD11 AMM 32-36-01-000-801. INSTALLED DOOR LINK MECHANISM.