EMPLOYEE WAS REACHING OVER THE HANDRAIL ON A EUCLID R35 FOR A SAMPLE TRAY FOR A SHALE CHECK. WHEN HE LEANED ON THE HANDRAIL FOR THE TRAY, THE HANDRAIL GAVE WAY. HE FELL APPROX 6 FT TO THE GROU ND. EMPLOYEE HAD NOT REPORTED THE DEFECTIVE HANDRAIL TO MINE MANAGEMENT. EMPLOYEE FAILED DRUG TEST. DOCTOR SAYS HE WILL BE UNABLE TO WORK FOR 6-8 WEEKS.