At 1:26am on December 22, 2013 the TRJV Mine experienced a power bump, that was later determined to be caused by problems with the NV Energy transmission lines . The bump tripped out the #2 man hoist, the primary access to the underground. Electricians reset the hoist at 1:52am.It took until 1:56am to run through the proper tests & put the hoist back in to service.