Issue
Hazard description
THE DEFECT EXISTS IN THE SERVICE AND EMERGENCY GLADHANDS LOCATED ON THE FRONT WALL OF THE TRAILER. THE BOLTS USED TO ATTACH THE GLADHAND LOCK PLATE TO THE GLADHAND ARE DEFECTIVE DUE TO HYDROGEN EMBRITTLEMENT. THIS CONDITION COULD CAUSE THE BOLTS TO FAIL PREMATURELY. IF THE BOLTS FAIL, THEN THE GLADHAND LOCK PLATE CAN COME LOOSE ALLOWING THE SEAL TO BE BROKEN IN THE AIR LINE BETWEEN THE TOWING VEHICLE AND THE TRAILER. IF THE SUPPLY LINE SEAL IS BROKEN, THEN THE EMERGENCY SPRING BRAKES ON THE TRAILER WILL APPLY AND THE TRAILER CAN EXPERIENCE A PANIC STOP WITHOUT PRIOR WARNING TO THE DRIVER. IF THE CONTROL LINE SEAL IS BROKEN, THEN THE TRAILER CAN BE OPERATING WITHOUT SERVICE BRAKES WITHOUT PRIOR WARNING TO THE DRIVER. EITHER CONDITION CAN RESULT IN A VEHICLE CRASH. CORRECTION: GLADHANDS WILL BE INSPECTED AND DEFECTIVE BOLTS REPLACED. BOTH GLADHANDS AND BOLTS WILL BE REPLACED IF THE DEFECTIVE BOLTS BREAK DURING THE REPLACEMENT PROCESS.
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