KY3 reports that the OSHA investigation is underway, which was to be expected. With TNT, there are a couple of spots maintenance could reasonably be found next to the tract during inspection, such as the lift hill and mid-course brake. As a side note, the mid-course brake does seem to trim a bit lighter these days than it did in its earlier years. The safety standards seem to be in place as they are required to announce when a train is in motion when testing, so it follows there would be "minimum distance guidelines" in place as well when on a maintenance catwalk. Of course, safety is every employee's responsibility, but it hard not to imagine getting dizzy or an epic sneeze or even a careless step at the worst possible time.