After 37 years of service, Amtrak is retiring its AEM-7 electric locomotives. Since 2014, the railroad has been accepting delivery of its new ACS-64 “Cities Sprinter” locomotives, which are being built by Siemens. As the ACS-64s have come on line, Amtrak has been removing the HHP-8 and AEM-7 locomotives from service. On June 18, Amtrak will send off these workhouses of the Northeast Corridor with a special excursion trip. The fantrip will leave from Washington’s Union Station at 9:10 AM and operate to Philadelphia and back. A planned run-by photo opportunity and tour of the Wilmington shops are included, as is lunch. The train returns to Washington at 5:40 PM.