2nd S.Panel#2 Entry x-c9, roof fall was found intersection. Around 45ft x 25ft x 8-10ft hi in return airway where no one works or travels. This is same area last fall at x-c8 happened. The area was considered bad 9/1/2015 and lifeline rerouted extra support installed. Area originally bolted 8ft full grout rebar bolts & cable bolts in intersection. The ventilation not affected.