<sod>On March 7, 1990, four people were killed and another 162 injured when the rear three cars of six-car train #61 derailed after leaving 30th Street Station westbound at 8:20&nbsp;a.m. It is believed that one of the traction motors dropped out of the rear truck on the third car (M3) somewhere between 15th and 30th street stations, and it became entangled in a switch immediately upon leaving 30th street station. The front truck of the fourth car (M3 #818) followed the third car, while the rear truck of the fourth car took the diverging track, causing the car to shear halfway upon striking the steel pillars separating the tracks beyond the switch.<ref>[http://www.nytimes.com/1990/03/08/us/philadelphia-subway-crash-kills-3-150-are-hurt.html Michael deCourcy Hinds, "Philadelphia Subway Crash Kills 3; 150 Are Hurt", ''New York Times'', March 8, 1990]</ref><ref>[http://www.nytimes.com/1990/03/09/us/dragging-motor-is-suspected-in-subway-accident.html AP Wire, "Dragging Motor Is Suspected in Subway Accident", ''New York Times'', March 9, 1990]</ref><ref>{{cite web |last=NTSB Report Number: RAR-91-01 |title=Derailment of Southeastern Pennsylvania Transportation Authority (SEPTA) Commuter Train 61 Philadelphia, Pennsylvania March 7, 1990 | date=April 23, 1991 | url=http://www.ntsb.gov/Investigations/AccidentReports/Pages/RAR9101.aspx}}</ref><eod>
<sod>On March 7, 1990, four people were killed and another 162 injured when the rear three cars of six-car train #61 derailed after leaving 30th Street Station westbound at 8:20&nbsp;a.m. It is believed that one of the traction motors dropped out of the rear truck on the third car (M3) somewhere between 15th and 30th street stations, and it became entangled in a switch immediately upon leaving 30th street station. The front truck of the fourth car (M3 #818) followed the third car, while the rear truck of the fourth car took the diverging track, causing the car to shear halfway upon striking the steel pillars separating the tracks beyond the switch.<ref>{{cite web |url=http://www.nytimes.com/1990/03/08/us/philadelphia-subway-crash-kills-3-150-are-hurt.html |first=Michael |last=deCourcy Hinds |title=Philadelphia Subway Crash Kills 3; 150 Are Hurt |publisher=New York Times |date=March 8, 1990}}</ref><ref>{{cite web |url=http://www.nytimes.com/1990/03/09/us/dragging-motor-is-suspected-in-subway-accident.html |last=AP Wire |title=Dragging Motor Is Suspected in Subway Accident |publisher=New York Times |date=March 9, 1990}}</ref><ref>{{cite web |last=NTSB Report Number: RAR-91-01 |title=Derailment of Southeastern Pennsylvania Transportation Authority (SEPTA) Commuter Train 61 Philadelphia, Pennsylvania March 7, 1990 | date=April 23, 1991 | url=http://www.ntsb.gov/Investigations/AccidentReports/Pages/RAR9101.aspx}}</ref><eod>