A failure in the hanging wall at 32W 3700 occurred between 6/21/04 dayshift & 6/22/04 dayshift that appears to meet MSHA's reporting criteria. No one working in the area on night shift. The heading has been open for appx. 10 months & was cable bolted about 2 months after initial excavation. The failed section measured approximately 10' h x 6' d x 20' l.