What’s Going On?

Just completed an investigation into why the mast of a rock drilling machine came crashing down on the machine with no warning.  If you’ve ever seen a rock drilling machine, they are equipped with a mast that rests in a horizontal position and can be raised into a vertical position for drilling.  In this particular case, the mast was in the process of being lowered when four bolts failed at the pivot points where the mast rotates from the vertical to horizontal.  Looks like it was just one of those unfortunate things that happens.  Currently conducting an investigation into why the electrical system in a cement mixing truck appears to have short circuited and burned some of the wiring.

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