From another forum (so second, third hand information):
"A friend I have working for Lionair just sent me this, from the indonesian media, words from a pilot at holding point RW09:
Were were taxing to depart, we´ve just seen the tail hit the water, within a minute we were surrounded by fire trucks. There was a big TS at the end of the runway. Wind shear for sure, we could see everybody going around...."