Hazard description
THE AIR BRAKE FOOT VALVE ON THESE VEHICLES IS PLUMBED TO THE SUPPLY RESERVOIR INSTEAD OF THE PRIMARY RESERVOIR WHICH REMOVES THE PRIMARY BRAKE SYSTEM AS A BACK-UP IN THE EVENT OF A SECONDARY SYSTEM FAILURE. IN THE EVENT OF A SECONDARY SYSTEM FAILURE, THERE WOULD BE NO AIR TO THE FOOT VALVE AND THE VEHICLE WOULD BE WITHOUT SERVICE BRAKES. THIS COULD RESULT IN LOSS OF BRAKING CONTROL AND A VEHICLE CRASH. CORRECTION: VEHICLES WILL BE RE-PLUMBED AT THE PRIMARY AIR TANK.
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