Found that two separate brake lines became disconnected from the brake units allowing all of the brake fluid to spray out and put zero pressure on the brake pads. There is a Facebook page for Riverstone owners. I found that there are a handful of other reports of similar brake failure on other Riverstone 5th wheel trailers, and some users report repeated failures. The problem seems to be a systemic one in that the brake lines are barely secured on their path from the pumping unit to the individual brakes and there is no provision to deal with the normal vibration that they experience. These are large trailer units that pose a significant risk to others when their brakes fail.
No injuries · No fire · No crash
During my last towing of the RV I found out the RV brakes were not working. Today upon visual inspection I found one hydraulic brake line T junction came apart above the middle axle, and the connection on the driver's side rear wheel outside calibers disconnected. I have taken pictures and it is currently available for inspection but I need to get it repaired soon. My wife and my safety and all other motorists traveling in front of us as the 21,000 pound trailer had no function brakes. It has not yet been confirmed by a dealer or independent service. No one has inspect it. Tow Vehicle brake controller indicated sending a signal to the RV brake system. I noticed some kind of fluid or lubricant on the drivers side rear tire but dismissed it as being excess grease from the bearings.
No injuries · No fire · No crash