LOL. I faced them 8 years ago on a dropped trailer. I didn't know it at the time, but the driver who used the tractor every day had issues hooking up. He had to hit it 3 or 4 times before the jaws closed around the pin. He was off that day and I got the tractor. I had the same experience as he did, but when it finally caught, I tugged and it seemed fine. I went under to look again and the jaws were closed. As I left the gate, the trailer came loose and hit the ground. I cranked it back up and got underneath it and turned back into the yard. My supervisor told me to go ahead with my route as I finally got it hooked correctly. I refused and put the tractor out of service. Later that week, a vendor came and replaced the spring kit. I appealed and before I had my SRB, I sent ahead several items I found on line that showed a defective 5th wheel could separate even miles down the road. I included the receipt from the vendor who replaced the spring kit. After several ridiculous questions from the 3 "drivers", I closed by saying that I could not have known the spring mechanism was defective but since they found it defective and replaced it, it should be clear that this was NOT preventable. The safety manager said that they knew about the spring kit replacement AND...it doesn't matter. 3 days later, preventable. Thank you! Woof.