What was found
ON GEAR RETRACTION AFTER T/O, THE ACFT HAD SEVERE VIBRATION. VIBRATION DIMINISHED AFTER ACFT WAS SLOWED AND GEAR EXTENDED. LANDING WAS NORMAL. NO FUEL DUMP. NO UNSAFE GEAR INDICATIONS. FOUND RT NLG DOOR TIE ROD END BROKE, REMOVED, REPLACED AND ADJUSTED RT NLG DOOR DRIVE LINK ASSY IAW MM 32-23-03-4. OPS CHECKED GOOD IAW MM 32-36-01-4.