Most people don’t realize that modern 18-wheelers carry “black boxes,” just like airplanes. These devices record speed, braking, steering, and driver hours leading up to a crash. In truck accident cases, black box data can be the single most important piece of evidence.
Trucking companies often fight hard to keep this data hidden because it can prove negligence. For example, it might show a driver was speeding, had been on the road too long, or failed to brake properly. But this evidence doesn’t last forever—it can be erased or overwritten in as little as 30 days.
That’s why it’s critical to call an attorney immediately after a truck wreck. At Bill Kennedy Law, we send preservation letters right away to secure black box data before it’s lost. With this evidence, we build stronger cases that force trucking companies to take responsibility.
📞 If you’ve been in a truck wreck in Denison or anywhere in Texas, don’t wait. Call Bill Kennedy Law now for a free, no-obligation consultation—available 24/7.







