At about 9:10 p.m. (
EDT) on Tuesday, May 12, 2015, Amtrak's northbound
Northeast Regional 188 departed Philadelphia's
30th Street Station en route to
New York City from
Washington D.C. The train consisted of seven cars hauled by a year-old
Amtrak Cities Sprinter (ACS)-64 locomotive, No. 601. The
engineer was Brandon Bostian, who had begun working the route a few weeks prior. The train entered a four-
degree left curve on the four-track line at the railroad's
Frankford Junction near the intersection of Frankford Avenue and Wheatsheaf Lane, where it derailed and wrecked at approximately 9:23p.m.(EDT). Passengers reported that the front of the train shook at first, before coming to an abrupt stop. The entire train went off the track, with three cars rolling onto their sides. The train sustained at least $9.2 million in estimated damages. The train should have been slowing to approach the curve with a reduced speed of during its approach, and within the curve itself, but instead, it had accelerated into the curve and was traveling at as its engineer according to Robert L. Sumwalt, the
National Transportation Safety Board's lead investigator, who cited the onboard event recorder recovered from the wreckage. Investigators are working to determine why the train entered the curve at such a high speed. The windshield of the locomotive may have been hit by a projectile shortly before the derailment. Proponents argue the train should have been equipped with
positive train control (PTC), which can automatically stop a train or slow it to a safe speed if the engineer fails to do so promptly. Amtrak officials said PTC had been installed on the tracks ahead of a Congress-mandated December 2015 deadline, but had yet to be operational due to "budgetary shortfalls, technical hurdles and bureaucratic rules". For four years, the railroad struggled with the
FCC to purchase the rights to airwaves in the Northeast Corridor required for PTC, which might have limited the train's speed and thereby prevented the wreck. During a press conference,
NTSB member Robert Sumwalt told reporters, "Based on what we know right now, we feel that had such a system been installed in this section of track, this accident would not have occurred." The track in question was not equipped with
Automatic Train Control (ATC), which had been operational for years on the southbound track of the curve at which the derailment occurred, and which also would have limited the train's speed entering the curve. Shortly after the derailment, Amtrak completed ATC installation on the northbound track. == Immediate aftermath ==