On 3/16/12, a roof fall was found in the #4 entry 1 bk outby spad #3122 on #1 Northwest Mains. Dimensions were 8' H. X 18' W. X 45' L. MSHA was notified by hotline. A ""J"" order was issued later modified to a ""K"" order to allow area to have additional roof support installed. This is not an active producing mine. No injuries reported, no EQ. involved No inter. of vent occurred.