Swivel Valve may Allow Loss of Pressure/FMVSS 121 – 2017-2018 Proterra Catalyst Buses
May 30, 2019 NHTSA CAMPAIGN NUMBER: 19V402000 Swivel Valve may Allow Loss of Pressure/FMVSS 121 If the swivel valves are unable to protect the air brake system against loss of air pressure, this may lead to service brake failure and the possibility for the uncontrolled application of the safety brake. Either condition increases the risk of … Read more