Phu Toei National Park (อุทยานแห่งชาติพุเตย) is a 319 km (123 sq mi) national park located in Dan Chang, Suphan Buri, Thailand. It has been a national park since September 30, 1987. On 26 May 1991, Lauda Air Flight 004 crashed after one the Boeing 767's thrust reverser deployed in mid-air.[2]