possible. >> this is kind of a dinosaur in the industry. have to troubleshoot a lot. a lot of times electronics don't failout right. they get glitchy and it has had 22 years to get glitchy. >> bruce adams runs the onsite repair shot. >> the mechanical aspect is solid. we have parts for that. it is basically the electronics that are obsolete. they don't make them any more. we are doing constant maintenance. this is a brutal environment for electronics you can hear them bumping and grinding down the guide path. take a beating but keep on doing the job. >> since they each weigh best to stayt is boast stay out of your path. >> you have o be very aware of your surroundings because they can be dangerous and you don't