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SEPTA will be 7,000 feet of wire short of meeting Silverliner IV repair deadline

SEPTA has been talking with the Federal Railroad Administration about its wire supply problem and will not be held in violation of the regulator's order.

SEPTA’s 223 Silverliner IV Regional Rail vehicles are shown during a news conference Nov. 14 outlining inspection procedures needed to return the 50-year-old railcars to service at the SEPTA Overbrook shop.
SEPTA’s 223 Silverliner IV Regional Rail vehicles are shown during a news conference Nov. 14 outlining inspection procedures needed to return the 50-year-old railcars to service at the SEPTA Overbrook shop.Read moreJose F. Moreno / Staff Photographer

Time and parts ran out on SEPTA.

The transit agency says it will miss Friday’s federal deadline to finish outfitting all 223 Silverliner IV Regional Rail cars with a new heat-detection system. The reason: It needs to wait for 7,000 additional feet of thermal wire.

About 30 of the 50-year-old cars have not yet had the safety feature installed, officials said. The wire required to finish the job is on back order.

“I don’t think the suppliers expected one agency to raid their entire stockpile,” spokesperson Andrew Busch said.

SEPTA needed about 39,000 feet of the thermal wire to outfit the entire fleet of Silverliner IV cars, he said. “It was an unusual demand on the supply chain,” Busch said. SEPTA has worked with two manufacturers and four distributors.

The missing link is expected to arrive next week, and the installations should be finished the following week, Busch said.

SEPTA worked with two manufacturers and distributors to get the large rolls of wire.

The thermal wire is made of spring steel, separated by a polymer that melts at high temperature, allowing the steel conductor to touch and connect the electric circuit. That allows it to provide earlier warning of a potential problem so cars can be pulled from service.

Delays, cancellations, station skips, and overcrowded trains running with fewer than the normal number of cars have been regular challenges for riders during the work, which started in October.

Meanwhile, SEPTA is leasing 10 passenger coaches from Maryland’s commuter rail system, MARC, which Amtrak is scheduled to deliver late Friday night at 30th Street Station. They will be towed to SEPTA’s nearby Powelton yard.