What was found
ON DEPARTURE OUT OF LGA WE HEARD A LOUD BANG ON ROTATION DURING CLIMB OUT, WE RECEIVED A BRK LT FAULT MSG AND WHEN WE EXTENDED THE GEAR, WE HAD A LG LEVER DISAGREE. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. REMOVED AND REPLACED DAMAGED HYDRAULIC LINES, SIDE STAY, BRACKET, WHEEL/TIRE ASSY, WHEEL SPEED SENSOR HARNESS, AND DOWNLOCK SENSOR.