3. A ventilation curtain was hung from the roof bolt plates and extended across the last open crosscut. The ventilation curtain was rolled up by the victim to allow him to see the face area. Survey station (spad) No. 91+71 The height at the accident scene was 65 inches. The roof bolt spacing from the bolts to the right rib were 33 to 35 inches. The rock that fell and struck the victim measured 12’3” long by 25 ½” wide by 2” to 10” thick. The rock struck the victim on the lower back and pinned him to the mine floor. The Joy 14/15 continuous miner A ram car was being loaded with coal at the time of the accident. The No.1 Entry of the 002 Section The Accident Scene Victim’s location while operating the continuous miner and loading the ram car by a remote control unit.