The Top 10 Most Common TMA Repair Requests

TMA trucks come into the shop for a predictable set of issues. Knowing the common ones helps fleets catch problems early and keep trucks compliant.

After enough trucks pass through a shop, the repair list starts to repeat. TMA units wear in predictable ways, and most of what comes in falls into a short set of categories. Knowing them helps a fleet spot trouble before it grounds a truck.

The common ten

• Post-impact attenuator repair and re-certification after a strike
• Worn or seized deploy and stow mechanisms
• Hydraulic or actuator faults in the attenuator lift
• Corroded mounting hardware and frame fasteners
• Arrow board lamp failures and wiring faults
• Changeable message sign display and controller issues
• Electrical and lighting faults from vibration and weather
• Chassis and suspension wear from rough shoulders
• MASH re-certification for units due on compliance
• General inspection and preventive service before a season

Catching problems early

Most of these are cheaper to fix early. A seized deploy mechanism caught in preventive service costs less than one that fails on a job. Corrosion caught at one fastener is cheaper than a frame overhaul. Regular inspection turns big repairs into small ones.

Do you re-certify attenuators after an impact?

Yes. We inspect struck units, repair what is sound, and re-certify to MASH standards. When the crash structure is compromised, we recommend replacement instead.

How often should a TMA truck be inspected?

Inspect before each season and after any impact at minimum. Fleets running trucks year-round benefit from a regular preventive schedule to catch wear early.