UPDATE: Sac International's People Movers Back Up And Running

SACRAMENTO(CBS13) – The People Movers are moving people again at Sacramento International Airport but it may be too late for some passengers.

For the third day in a row, some passengers have been delayed at the airport due to some sort of incident.

Thursday morning at about 8 a.m., the People Movers, which take passengers from the landside to airside concourse at Terminal B, malfunctioned, forcing travelers to walk across a "guideway."  

At one point, all flights were held for 10 minutes and the "guideway" cleared as airport officials worked to reboot the People Mover system. 

By 10:15, the People Movers were back up and running and by 10:50 the backup had been cleared. However, since flights could only be held for 10 minutes, some passengers may have missed their flights or had troubles making connections. One flight was canceled.

Officials shut down the People Movers system after a communication problem between the trains and control center.

Although there have been a few issues with the People Movers before, this is the first time both trains were shut down.

CBS13's Nick Janes reported on the People Movers when the new Terminal B opened. There are two open-air tracks with a People Mover for each direction. Thursday morning travlers had to walk on those tracks to get their flights when the People Movers were out of commission.

Normally, the air-conditioned trains take less than a minute to travel from one concourse to the other.

The all-electric system is designed by Bombardier Transportation and said the trains have a 99.5 percent reliability rate.

Still, airport officials built an emergency guideway just in case the People Movers ever broke down. They just hoped they would never have to use it.

Several other major airports have the Bombardier system Sacramento uses, including Las Vegas, Denver, Dallas-Fort Worth and Atlanta.

Las Vegas has a running 13-month average of 99.77 percent without problems. Denver has been using its People Mover for 17 years and there have been only two major shutdowns, but not in recent history.

Thursday's incident follows two days of emergencies involving Southwest flights at the airport. On Tuesday night, a Southwest plane blew out two tires on takeoff. And Wednesday morning, a Southwest flight hit three birds just minutes after takeoff and had to turn back around. No one was hurt in either incident.