What was found
ON LANDING AT JFK AT PROX 90KTS OR BELOW WE HAD A VIOLANT SHAKING OF THE AIRCRAFT ON ROLLOUT, REMOVED ALL DAMAGED SUPPORT BRACKETS. PERFORMED TEST OF CENTERING CAM, OPS CHECK GOOD. REMOVED AFT STEERING ACTUATOR CYLINDER IAW A321 AMM 32-51-42 (JG 929084) PERFORMED INSP OF NLG UPPER SUPPORT ANTI-ROTATION LUGS & CYL LUGS PER A321 AMM 32-21. NO DMG NOTED (VC 759421). INSTALLED AFT STEERING ACTUATOR SUPPORT BRACKET P/N D65480 IAW AIRBUS A321 AMM 32-51-42. OPS CHECK NORMAL. NO LEAKS NOTED. INSTALLED NEW UPPER TORQUE LINK IAW AIRBUS A321 AMM 32-21-27 (JG 929084). INSTALLED LOWER TORQUE LINK AND CTR HINGE PER A321 AMM 32-21. PERFORMED NOSE GEAR SWING