On Friday, October 4, 2013, at approximately 1: 10 p .m ., a longwall maintenance coordinator was supervising the installation of face conveyor chain on the 8-B longwall set up face. A scoop was being used in conjunction with a sheave block and wire rope to pull the face conveyor chain down the longwall face (towards the tailgate). As the scoop was tramming (towards the headgate) and pulling face conveyor chain down the longwall conveyor pan line, the face conveyor chain became fouled. As the scoop continued to tram, the sheave assembly and wire rope broke loose from the anchoring point, causing them to be propelled forward, striking the victim in the back of the head. The victim was standing in the conveyor panline when the accident occurred.