AAR T-55 Service Trials The Service Trail was approved in March 2020, yet the AAR report from the October 2020 meeting for Docket T55 "Service Trials" shows that as late as July 2020, Kelso has not yet started its service trial for the "Standard Profile Bottom Outlet Valve 4”/ Ceramic Ball".
Same for the " 3” Top Ball Valve (ST-478)" that was aproved July 2020.
Any update?