SEPTA was granted a two week extension in order to inspect all of their Silverliner IV train cars, according to the transit agency.

As of Friday morning, SEPTA officials reported that their inspectors have completed inspections on 114 rail cars, about half of the mass transit provider’s fleet of aging Silverliner IV trains.

Also, according to SEPTA, 48 Silverliner IV trains have been returned to service so far.

At its current inspection speed, SEPTA said, workers are inspecting eight cars per day. 

With the granted extension, SEPTA now has two weeks, until Nov. 14, to complete the rest of the inspections.

SEPTA has been working all month to inspect its fleet of Silverliner IV trains after an NTSB investigation called for the mass transit provider to suspend the operation of the entire Silverliner IV fleet until they determine the exact causes of recent train fires.

Since the start of the year, there have been five fires on SEPTA Silverliner IV trains.

These trains are the oldest that SEPTA runs on a regular basis, entering service between 1974 and 1976.