Previous Next Photo By Alan Page A pair of SD50-2's, CSXT 2490 (CSX 8659 / CR 6739) and 8637 (ex-C&O) work a line of hoppers at E.R. Snell in Tyrone, GA on February 28, 2014. The former CR SD50 was derated by CSX to 3,000hp and reclassed as an SD50-2. Equipment Type EMD SD50 Conrail Number 6739 Post Conrail Owner CSX Post Conrail Number CSX 2490 Year 2014 Original Date 2/28/14 Collection CRHS Conrail Photo Archive Contributions