Soon after the earthquake, the Federal Aviation Administration (FAA) ordered airplanes to stop flying along the East Coast. The Air Traffic Control tower at John F. Kennedy International Airport was evacuated. Flights were late at several airports, including John F. Kennedy International Airport, Newark Liberty International Airport, Ronald Reagan Washington National Airport, Dulles International Airport, and Philadelphia International Airport. At the National Airport, ceiling tiles in the airport terminal fell to the ground, and flights stopped. Washington Metro trains were delayed and run at reduced speeds of 15 miles per hour. This allowed engineers to see if the rails were damaged. Just after the earthquake, many people made cell phone calls. This tied up the AT&T and Verizon Wireless networks. People could not start phone calls for at least 20 minutes.