MacBook Air Model A1466 for repair/parts

MacBook Air model A1466.FOR REPAIR OR PARTS.DOES NOT POWER ON.My friend gave it to me as a gift,just shut off,never turned back on. not sure what's wrong with it. I don't know how to fix it. Good for someone who knows how to fix laptops or a reseller. All Parts inside is there. Pick up in Brooklyn price 25