AS 1ST RIGHT HAND LIFT WAS BEING TAKEN OFF #1 PILAR BLOCK IN # 3 ENTRY ON 001 UNIT OF 2 RT PANEL OFF 3 NORTH THE ROOF FELL CATCHING CONTINUOUS MINING MACHINE. THE ROCK WAS 3 FT-6FT THICK AND E XTENDED ONTO GOB. LOCATION WAS APPROX. 40 FT OUTBY SS#1321 ENTRY, WAS 15-18-FT WIDE AND SUPPORTED WITH 6 FT PA BLOTS.