OOSC, Part II, Item 1. Brake Systems - MVSS Computer Brakes

I would like to explain a situation I had a couple days ago. I inspected a Canadian vehicle. This vehicle was new and had MVSS computer brakes. I noticed an air leak during my inspection. I performed a Level I inspection. On the trailer I found that on the air tank at axle #5, there was a piece of an air valve just hanging. This valve was hanging by a 1/4\" signal line coming from a service line. So when the operator applied the brakes it was bleeding air. I performed an air loss rate test. It just maintained air at an idle. The leak was NOT at a chaffed or broken brake hose. It was not at a proper connection. There is nothing in the current North American Standard Out-of-Service Criteria (OOSC) that references computer brake items. I did release the vehicle because I felt I had no way to deadline the trailer. This vehicle had the ABS brake system. Upon failure of the ABS the vehicle \"Should\" revert back to standard brakes. I believe there should be something in the OOSC that should address this issue. I have been inspecting vehicles for sometime. I wanted to mention this and see if it could be addressed. I hope that I have given you enough information. Thank you for you consideration with this matter.

Just add into the next OOSC something that would address \"Parts\" of the ABS computer systems.

Update the OOSC to reference \"Newer\" systems.