THE MINER HAD AN UNCLE PASS AWAY & WAS NOT FOCUSED ON HIS JOB. EE IS GOOD EXPERIENCED MINER WHO WORKS SAFE, USES PPE SAFETY RULES & REGS & COMPLIANCE. HE REACHED DOWN TO TURN ON AIR, & VALVE O N THE MACHINE WAS OPENED. MACHINE SURGED FORWARD & EE DUCKED OUT OF THE WAY, TWISTING KNEE & CAUSING KNEE SPRAIN.