EMPLOYEE STATED THAT HE WAS OPERATING PARTS JEEP ON L-10 TRACK DELIVERING PARTS TO THE LONGWALL. AS HE WAS DRIVING THROUGH THE INBY DROP CURTAIN, HIS ARM GOT CAUGHT IN THE CURTAIN. HE WAS DIAGNOSED WITH A ROTATOR CUFF TEAR TO HIS RIGHT SHOULDER. HIS FLWD DID NOT OCCUR UNTIL 11/17/05.