FAN 2 Big Three Dragons(88 points)
Combination
Pungs or Kongs of all three Dragon Tiles
Combination of three Pungs or Kongs for all each of the Dragon tiles (R, G, W/B)

source: Mahjong Greenbook MCR Rules 2014 (pdf)
Combination
Pungs or Kongs of all three Dragon Tiles
Combination of three Pungs or Kongs for all each of the Dragon tiles (R, G, W/B)
source: Mahjong Greenbook MCR Rules 2014 (pdf)