The shutdown initially prevented the National Transportation Safety Board from assisting the Mexican government 's investigation of the 2018 Puebla helicopter crash that killed a state governor and senator ; an exception allowed the NTSB to assist with the Mexican government in the investigation along with the Transportation Safety Board of Canada . The NTSB also had to delay several investigations until the government reopened and only continued investigations into accidents that were considered the most serious . Issues in receiving certification and oversight from the FAA led to a month-long delay in the commencement of passenger service at Paine Field in Everett , Washington
2018 Puebla helicopter crash
2018 Puebla helicopter crash
2018–19 United States federal government shutdown