A downed wire left 408 passengers stranded on a powerless SEPTA train for nearly three hours during the Monday, Oct. 19, evening commute, prompting a public apology from the transit agency's top official.

The incident began around 5:13 p.m. when a live wire fell onto Media/Wawa Line train #5343 near 49th Street in Southwest Philadelphia, according to an open letter from SEPTA General Manager Scott A. Sauer. The train could not move, and SEPTA suspended service on the entire line.

SEPTA police, safety professionals and mechanics were dispatched within minutes, Sauer said. Crews spent about an hour de-energizing and securing the wire, and partial service resumed at approximately 6:15 p.m.

That allowed inbound train #3548 to proceed to Center City with delays of more than 30 minutes. But conditions remained unsafe for train #5343 to move. Its 408 passengers waited on board without power while further repairs were made.

SEPTA said bus service, its standard backup, was not practical because of the site's complexity, darkness, the number of passengers and the distance they would have had to walk. Instead, crews arranged train-to-train transfers that began around 7 p.m. and finished before 8 p.m.

6abc reported that viewer video showed passengers sitting in the dark aboard the stopped train. No injuries were reported, according to the station.

"This was a complicated and complex situation, but our response to riders of train #5343 took too long. You are right to be frustrated," Sauer said in his Oct. 20 open letter to riders.

Sauer said SEPTA managers planned to board trains #5343 and #3548 on Tuesday, Oct. 20, to speak face-to-face with passengers about what could have been done differently.

The wire failure comes weeks after a separate overhead-wire incident on SEPTA's system. The National Transportation Safety Board (NTSB) cited SEPTA's failure to inspect its overhead wire system as the most likely cause of a Sept. 25 incident in Springfield Township, Delaware County, in which live wires fell onto a Route 101 trolley, injuring the operator and 10 passengers, 6abc reported.

Sauer's letter did not address whether the Oct. 19 wire failure is related to the inspection deficiencies the NTSB identified.

Riders can submit feedback to SEPTA Customer Service at 215-580-7800.