CHIANG MAI: An Aero L-39 jet trainer aircraft crashed in the northern province on Thursday. One of its pilots was killed and the other was safe after ejecting from the plane. The incident was reported in tambon Tha Wang Tan of Sarapi district at about 4.15pm on Thursday. /////////////////////////////////////////////// An Aero L-39 jet trainer aircraft crashed in Chiang Mai yesterday killing one of the pilots. The other ejected safely from the plane. The accident was reported in tambon Tha Wang Tan of Sarapi district at about 4.15pm.