EE REPORTED HE WAS CLOSING THE BOILERSHOP DOORS WHEN THE FIRST DOOR HUNG UP. EE PULLED DOOR FROM WALL & PUSHED ON THE BACK OF THE DOOR AT THE SAME TIME. EE'S LT. HAND WAS CAUGHT BETWEEN SLIDIN G DOOR AND AN I-BEAM, EE'S 3RD FINGER ON HIS LT.HAND WAS LACERATED, WHICH REQUIRED STITCHES.