This afternoon, the National Transportation Safety Board has issued a stern warning to SEPTA. These warnings were the direct result of five fires which occured on the Silverliner IVs this year alone. Back in August, SEPTA withdrawn many of the Silverliner IVs from service due to mechincal issues. Things seemed to be progressing however due to a more recent fire in Fort Washington and Philadelphia, the NTSB has issued a urgent recommendation.
https://www.ntsb.gov/news/press-releases/Pages/NR20251001.aspx
Per the the NTSB
“The NTSB concluded that the outdated design of the Silverliner IV railcars, in combination with SEPTA’s maintenance and operating practices, represents an immediate and unacceptable safety risk because of the incidence and severity of electrical fires that can spread to occupied compartments. Additionally, the NTSB found that the risks posed by the design cannot be fully addressed without an extensive fleet retrofit or replacement.”
The NTSB recommends that SEPTA Suspends operation of the Silverliner IV fleet until the cause of the fires are determined and remedy.
https://www.ntsb.gov/news/press-releases/Pages/NR20251001.aspx
The NTSB also recommends that SEPTA establish an expedited procurement or retrofit schedule. To put this into context, SEPTA has recently faced significant fiscal challenges. The agency reported a $213 million operating budget deficit, which led to service cuts on August 24, 2025, followed by fare increases on September 1. In late August, a lawsuit was filed against SEPTA, and the outcome permitted the agency to raise fares but not cut service. Service was restored a couple of weeks ago.
To cover the shortfall, it was recommended that SEPTA draw from the PTTF fund. What is the PTTF? It is the Pennsylvania Public Transportation Trust Fund, which is intended for capital projects such as new equipment procurement. With that fund being tapped and no additional state legislative approval for more funding, SEPTA’s options are now very limited.
SEPTA’s response is
“Following a fire in February 2025, SEPTA worked with FRA and NTSB to develop a comprehensive set of 40 mitigation measures. SEPTA has made progress on a range of initiatives from additional notifications and safety checks to audible alarms for fault lights. Rail Operations has also adjusted vehicle usage to reduce hours of service on these aging cars. Due to these efforts, SEPTA is confident that by working hand-in-hand with FRA and NTSB, we can safely continue service with the Silverliner IV fleet. “
https://wwww.septa.org/news/ntsb-report-silverliner-iv-trains