THE AIR LINE PLUMBING OF THE AIR BRAKE FOOT VALVE WAS CONNECTED TO THE SUPPLY RESERVOIR INSTEAD OF THE PRIMARY RESERVOIR. THIS REMOVES THE PRIMARY BRAKE SYSTEM AS A BACK-UP IN THE EVENT OF A SECONDARY BRAKE SYSTEM FAILURE.
RiskIN THE EVENT OF A SECONDARY SYSTEM FAILURE, THERE WOULDBE NO AIR TO THE FOOT VALVE AND THE VEHICLE WOULD BE WITHOUT SERVICE BRAKESCAUSING LOSS OF BRAKING CONTROL WHICH COULD RESULT IN AN ACCIDENT.
FixREROUTE THE FOOT VALVE AIRLINES TO THE PRIMARY AIR TANK.