ROOF FALL MEASURING APPROX 18' W BY 50' L BY 4-8' H FOUND DURING WEEKLY TRAVEL OF BLEEDER SYSTEM. LOCATED APPROX 140' IN BY SURVEY STATION #2359. NO PERSONS, EQUIPMENT OR VENTILATION AFFECTED. WILL NOT BE CLEANED UP. AREA WILL BE TIMBERED OFF. REPOTED BY PHONE TO MSHA.