What was found
DCA - FLT 481 - UPON RETRACTING THE GEAR, A LOUD NOISE WAS HEARD AROUND THE NOSE GEAR AREA FOLLOWED BY A VIBRATION. ALL INDICATIONS WERE NORMAL. FLIGHT RETURNED TO DCA. MAINTENANCE REPLACED THE UPPER NOSE LANDING GEAR DOOR STOP CABLE, THE LOWER CABLE, SPRING TENSION AND FORWARD NOSE LANDING GEAR DOOR LINK. OPERATIONS CHECKED GOOD. REF USAA950617, 95ZZZW808, 95ZZZW809.