What was found
ON GEAR RETRACTION A LOUD THUD OCCURRED IN MAIN LANDING GEAR. CREW DEBRIEF: VERBAL FROM FLIGHT CREW "THUD" NOISE FROM RT MAIN GROUNDED - YES. REMOVED AND REPLACED BOTH RT AND LT MLG LANDING GEAR SUPPORT LINK ASSEMBLIES. PN 115A1500-14 (RT SIDE - CRACKED & WORN BUSHINGS) & PN 115A1500-13 (LT SIDE - CHANGED AS PRECAUTIONARY AFTER FINDING DAMAGED BUSHINGS ON RT SIDE). REF B737-700 AMM 57-15-01/401.