A total of 574 commercial motor vehicles were placed out of service during a recent one-day surprise inspection blitz focused on brakes.
The Commercial Vehicle Safety Alliance Tuesday announced 4,021 inspections of commercial motor vehicles in the U.S., Canada and Mexico. CVSA said 85.7% of the vehicles inspected had no brake-related out-of-service violations.
The inspection blitz was held April 14 in 47 jurisdictions.
This year, emphasis was placed on drums and rotors. Inspectors identified 43 drum and rotor violations, of which 21 were out-of-service violations, according to CVSA.
Inspectors identified 313 commercial motor vehicles that met the 20% defective brakes out of-service criterion, which is when 20% or more of the vehicle’s (or combination of vehicles’) brakes have a condition that impairs braking ability to a degree that the brake is considered defective.
In addition, inspectors found:
- 121 out-of-service violations related to brake hoses and/or tubing
- 47 vehicles had steering axle out-of-service violations
- 40 vehicles failed an air loss rate test
- 193 other out-of-service brake violations, such as inoperative tractor protection system, hydraulic or electric brake violations, inoperative parking/emergency brake, inoperative low-air warning device, etc.
Brake Safety Day is part of Operation Airbrake, a CVSA program dedicated to improving commercial motor vehicle brake safety throughout North America. CVSA’s seven-day brake safety campaign is scheduled for Aug. 23-29.

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