デュランゴ・アンド・シルバートン狭軌鉄道
As of 2020, eight of these locomotives still operate regularly. Nos. 483, 484, 487, 488 and 489 are owned by the Cumbres and Toltec Scenic Railroad (C&amp;TSRR) and Nos. 480, 481, 482 and 486 are owned by the Durango and Silverton Narrow Gauge Railroad (D&amp;SNG). However, No. 483 is stored out of service at Chama. As of June 2020, No. 489 is temporarily out of service while it undergoes a new smokebox installation during its Federal Railroad Administration (FRA) mandated 1,472-day inspection. However, due to COVID-19, No. 489 is currently expected to return to service later in 2021. On December 15, 2020, the C&amp;TSRR announced that, in addition to the 1,472-day inspection and rebuild, No. 489 is also being converted from burning coal to burning oil. No. 489 will be the first and only so far locomotive on the C&amp;TSRR to be converted to burn oil. No. 489 is currently expected to be back in service again in time for the 2021 operating season, although an exact date is still to be announced. In addition, as of early November 2020, No. 480 is also currently undergoing a conversion from burning coal to burning oil and will be the third and last locomotive so far on the D&amp;SNG to be converted to burn oil, the others being K-37 class No. 493 and K-28 class No. 473.