WHILE LOWERING THE 7 MAN NIGHT SHIFT CREW UNDERGROUND WITH THE #1 MAN CAGE, THE CAGE STOPPED BECAUSE THE COUNTERWEIGHT UP DETECTOR SWITCH FAILEDAFTER CALLING ENGINEER THE HOIST MAN POWERED THE CAGE BACK TO THE SURFACE. MEN WERE IN SHAFT ~20 MINUTES. AFTER REPAIRS WERE MADE THE CREW WAS LOWERED INTO THE MINE.