Helicopter Bell 412EP Serial 36240 Register XA-UNI HK-4571 XA-TPH used by ASESA (Aeroservicios Especializados SA). Aircraft history and location Aircraft History XA-TPH - 1999-11Mexico, Bell serial N63860 Nov99, to Colombia HK-4571 - to XA-UNI XA-UNI ASESA 2010-11-13ASESA, w/o 13nov10 crashed in mountainous terrain near Trujillo, Colombia. 3 fatalities Send Updates Use APP to upload photo @ (optional) When Now? / / Send