
The Federal Communications Commission, however, warned the system could face "harmful interference" from rival freight railroad systems along another busy track between Boston and New Haven, Conn.
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The phone records analysis of the Amtrak 188 investigation was more complicated than anticipated because the phone carrier has multiple systems that log different types of phone activity, some of which are based in different time zones.
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The technology was already installed on tracks Amtrak owns in the Northeast Corridor from Boston to Washington, but it wasn't in operation when Amtrak Northeast Regional train 188 entered a curve in Philadelphia at 106 mph on May 12.
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The train was travelling at 106 mph when it entered a 50 mph-restricted curve. As the train entered the curve, the engineer applied the emergency brakes.
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Installation will first occur in the 70 ACS-64 locomotives that will power all Northeast Regional and long-distance trains between Washington, New York and Boston, as well as Keystone Service between New York, Philadelphia and Harrisburg, Pa.
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An examination of the signals systems has revealed no anomalies or malfunctions. The NTSB has possession of the Amtrak engineer’s cell phone. Additionally, under its enforcement authority, the Federal Railroad Administration subpoenaed and obtained the engineer’s cell phone records and has shared that data with NTSB forensic experts.
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The order is the latest in a series of actions the FRA has taken in the wake of last week’s derailment of Amtrak Train #188.
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Amtrak still would have had work to do, including tuning its radios to the correct frequency, installing them on trains, testing them, and checking for any interference with existing spectrum users, including some Philadelphia-based TV stations.
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The passenger rail operator is seeking expedited FCC approval to equip the site of the Philadelphia dertailment with positive train control technology.
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There was no explanation for that acceleration, the NTSB said, but the train’s engineer, Brandon Bostian has agreed to be interviewed by federal investigators, the Post reported.
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