Updated: January 27, 2013 8:23PM
Two stalled trains, likely halted in part because of the wintry weather, caused major delays for CTA Green Line passengers on Sunday.
“We basically had two defective trains with electrical issues on the Cottage Grove branch and the Ashland branch,” CTA spokeswoman Lambrini Lukidis said.
About 4:45 p.m., officials learned that southbound trains had stalled at the 63rd and Ashland station and the 55th Garfield station, halting both branches of the Green Line, she said.
Southbound service was stopped for about 75 minutes while crews cleared the trains, Lukidis said. Some passengers were put onto shuttle buses, while other trains turned around and headed north.
Service had nearly returned to normal by 7 p.m.
The trains stalled because of electrical problems that likely were related to icy weather conditions, Lukidis said.
The entire CTA system started preparing for the incoming winter weather early Sunday, deploying sleet scrapers on every rail line and activating devices that heat the electrified third rail.
The agency’s trains also ran on a weekday schedule rather than a Sunday schedule in hopes that the additional trains would prevent any ice buildup, Lukidis said.
Officials also replaced all 60-foot articulated buses — which run mostly on Lake Shore Drive and downtown — with 40-foot, non-articulated buses, which stop better in icy conditions.
Field supervisors were keeping watch on Lake Shore Drive as the storm continued Sunday evening, Lukidis said.