EE was running a 270 tractor that pulls coal in a ram car and had made a turn thru an intersection and had his right arm hanging out of the deck and over the bumper when the ram car bumped out against the tractor bumper it mashed his arm in between the two resulting in an injury he didn't think he hurt it but it started to swell up and decided to get it checked.
We were taking a 10' cut by 16' wide out of #5 heading where we were going under a hollow and as we were cleaning up the cut I saw some of the top drip from the rib and we stopped and backed miner out and was going to set some cribs but in about 10 mins. it started to fall from the face out.
We were starting a cut in #7 heading and was cutting 10' on right side (curtain side) on blowing vent. When the right corner cut thru into a unknown old mine, there was some water every-one evacuated no one was hurt and no equipment was damaged no ch4 or bad air was in old mine.
After taking a cut right hand break out of the #7 entry the miner moved to another cut and the bolter operater seen the place was working and backed the bolter out and called for the boss and the place started working more and then fell starting from the inter into the right brk. they had just started the fall was approx. 8 ft wide, 4-5 ft thick and about 25 ft long.