A ROCKFALL OCCURRED IN THE S/R IN THE 302 SUBMAIN WEST IN THE #4 ENTRY AT SPAD 3+50 SOMETIME BETWEEN THE AFTERNOON SHIFT ON 9/12/20 & 9/13/20 WHEN THE PRE-SHIFT EXAMINERS CAME IN AT 8:00 PM TO EXAM THE MINES FOR THE 3RD SHIFT WHICH STARTED AT 11:00 PM. THE FALL WAS 10X19X60.