9A SECTION - 88 BLK. EE WAS WALKING TO FACE OF #2 ENTRY. A PIECE OF HEAD COAL FELL FROM BETWEEN ROOF STRAPS, STRIKING EE ON TOP OF HIS HARD HAT AND SHOULDERS. APPROX. SIZE OF HEAD COAL WAS 2' X 3', VARYING IN DEPTH FROM 1-6"". EE COMPLAINING OF PAIN IN NECK AND BACK.