On 22 July 2000, four workers carrying out riverbed construction work in the Pachang River of Chiayi County, were surrounded by the quickly rising torrent on Saturday afternoon. The four stood in the center of the river for three hours, waiting for a helicopter that never came, and were finally washed away at around 7:08pm in sight of family members, helpless would-be rescuers, and the lens of news cameras on the riverbank. The delay was attributed to bureaucratic red tape and three top government officials resigned, including Yu Shyi-kun, the vice Premier of Executive Yuan and two Director-Generals from National Police Agency and National Fire Agency. This Pachang-Creek incident (:zh:八掌溪事件) caused a field day for the news media in Taiwan and triggered a reform of the airborne emergency management system. On 10 March 2004, the newly formed National Airborne Service Corps (NASC) of the Ministry of Interior absorbed four civil airborne squadrons