CBS 3 reports in “Equipment Failure Put SEPTA Riders At Risk” that on August 29, an inbound R5 train near Merion had a traction motor drop from its usual position under the train and was dragging the motor for an unspecified distance.
“It’s the worst you can get, it’s a catastrophic failure,” Charles Little said.
Little heads the union of 200 SEPTA car inspectors and he suspects bolts holding the piece of equipment, called a traction-motor, failed.
“It could have been a very serious derailment,” Little added.
This is the same type of failure that caused a fatal accident on the Market-Frankford Subway in 1990, though that one happened in the confined space of the subway, where the derailment caused one of the cars to be ripped apart by the support columns.
Here, the dragging-equipment detector probably notified the crews that something was wrong before they got to Overbrook, which has an interlocked crossover. The safety systems, which is on tracks owned and maintained by Amtrak and not SEPTA, most likely did their job and prevented an more serious incident.
However, SEPTA maintenance procedures should be reexamined, particularly since the 1990 accident revealed that inspection reports were falsified and work that was said to have been done was never done.
I have written a report on the Market Street Subway Crash of 1990.