United States 88V075000
THOMAS BUILT BUSES, INC.
The problem
A PRESSURE PROTECTION VALVE WAS OMITTED IN FRONT AIR BRAKE PLUMBING THAT IS REQUIRED BY FMVSS 121.
Risk
IF A LEAK DEVELOPS IN THE AIR BRAKE PLUMBING, AIR INFRONT BRAKES WOULD NOT BE PROTECTED.
What owners should do
INSTALL PRESSURE PROTECTION VALVE.
Units 7