Looking into it further, the manifold itself is
****, I ordered a new one today and it should be here Monday, for now the bus is out of service, and may not be driven.
The 99's are up for examination Tuesday or Wednesday of next week. I was made aware of a couple of issues last time with their exhaust systems as well. Eric, if you could have spare buses assigned to those drivers (19901,19902,19903) I'd appreciate it. It's not 100% whether or not they'll need them, but at least this way we'll be prepared.