been delivered and was undergoing successful testing. , the first HHP-8 reconditioned was running for three weeks without major issue (a software issue was corrected in this time). A second HHP-8 was being reconditioned. , The second HHP-8 had the most unreliable power control components replaced and was back in service. The remainder of the upgrade on this locomotive was to be done by the end of 2018. MARC planned to upgrade the remaining HHP-8 locomotives in their fleet. Named units There is only one HHP-8 that is named. MARC unit #4913 is named "Kathryn D. Waters" after a former administrator of the Maryland Transit Administration. References External links Amtrak locomotives B-B locomotives Alstom locomotives Bombardier Transportation locomotives 11 kV AC locomotives 25 kV AC locomotives Electric locomotives of the United States Multi-system locomotives Passenger trains running at least at 200 km/h in commercial operations Standard gauge locomotives of the United States Passenger locomotives