Fire barrier at Susquehanna nuclear plant discovered to be composed of "combustible material", (NRC Fire Inspection, 10/27/20)

This is nuts:  @NRCgov cited the Susquehanna #nuclear plant in #Pennsylvania after discovering that part of a barrier in place since 1982 intended to protect a diesel-powered fire pump from a 3-hour fire was actually composed of a combustible material (!)