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Tire Blowout Accidents

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People's Justice Legal Research Team

Causes of Commercial Truck Tire Blowouts

Commercial truck tire failures occur for several preventable reasons. Underinflation is the leading cause — tires operating below proper air pressure generate excessive heat, causing tread separation and catastrophic failure. FMCSA regulations require drivers to check tire pressure as part of pre-trip inspections under 49 CFR Part 392.7. Overloading — operating a truck at weight exceeding the tire load rating — accelerates structural fatigue and increases blowout risk. Retreaded tires, which are widely used in commercial trucking to reduce costs, present elevated blowout risk when improperly manufactured or applied to tires with compromised casings.

Age-related tire degradation is a significant but under-recognized hazard. The NHTSA has found that tire aging — the breakdown of rubber compounds over time even without visible cracking — significantly increases blowout risk in tires older than 6-10 years. Unlike consumer vehicle tires, commercial truck tires may remain in service for years longer than is safe because fleet operators lack systematic age-based replacement policies. Inspection records and tire date codes are critical evidence in blowout cases.

FMCSA Tire Inspection Requirements

FMCSA regulations under 49 CFR Part 393 require commercial vehicles to be equipped with tires meeting minimum tread depth requirements (4/32 inch for front tires, 2/32 inch for all others). Tires with visible damage — cuts, bulges, ply separation, or exposed cords — must be removed from service. Pre-trip inspection requirements under 49 CFR Part 392.7 obligate drivers to check tire condition before each trip. Annual vehicle inspections under FMCSA Part 396.17 require detailed tire inspection by qualified mechanics. Violations of these requirements establish negligence per se.

Driver-Vehicle Inspection Reports (DVIRs), which drivers must complete at the end of each day identifying any defects observed, are critical documents in tire blowout litigation. A DVIR noting tire concerns that was signed off as repaired without actual repair is evidence of fraudulent or negligent maintenance. A pattern of clean DVIRs followed by a catastrophic tire failure suggests either falsification of inspection records or systematic failure to conduct genuine inspections.

Tire Debris Liability and Multi-Vehicle Crashes

When a commercial truck tire blows out at highway speed, tire debris — commonly called gators — can weigh over 100 pounds and may scatter across multiple lanes. Passenger vehicles striking tire debris at 70 mph can suffer tire damage, loss of control, and catastrophic accidents unrelated to direct contact with the truck. Carriers whose blown tires caused debris-field accidents face liability for all foreseeable consequences of the blowout, including third-party vehicles that struck the debris. Product liability claims against the tire manufacturer are viable when the blowout was caused by a manufacturing defect rather than maintenance failure.

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Parent Case

Truck / 18-Wheeler Accident Lawsuit

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