FlyerTalk Forums - View Single Post - Amtrak Cascades Train 501 Derails Off Interstate 5 Overpass near DuPont, WA
Thread: Amtrak Cascades Train 501 Derails Off Interstate 5 Overpass near DuPont, WA
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Old Dec 18, 2017, 4:17 pm
  #28  
Traveller
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For those of us that don't work in the field, what is PTC? I did google, but I still don't know.
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