 Then President Gloria Macapagal-Arroyo dismissed acting Air Transportation Office chief Danilo Dimagiba after the downgrade and designated Department of Transportation and Communications Secretary Leandro Mendoza as concurrent Officer in Charge of ATO.Also, the Embassy of the United States in Manila warned US citizens in the Philippines "to refrain from using Philippine-based carriers due to 'serious concerns' about the ATO's alleged mishandling of the aviation industry.