THE HEAD DRIVE OF THE BE-03 ELEVATOR WAS BEING REPLACED BY EE AND 3 COWORKERS. COWRKER WENT TO GROUND LEVEL TO HOIST UP ANGLE IRON. THAT DONE, HE FAILED TO CLOSE HOIST AREA. LATER THAT AFTERNO ON, EE FELL INTO THE OPENING BREAKING HIS HIP JOINT IN TWO PLACES. HE WAS RESCUED FROM THE TOP OF THE 100' ELEVATOR AND TAKEN TO THE HOSPITAL.