What a Claim Has to Show: Negligence, Product Liability, and Premises Liability
The law does not treat an accident as proof of anyone's fault, or as proof that a ride was defective. It asks whether specific elements are met, and that depends on the facts.
Negligence is the failure to use reasonable care. A negligence claim generally asks four things: whether the party owed the rider a duty of care, whether it breached that duty, whether the breach caused the injury, and whether the rider suffered damages. An operator who skipped a restraint check is the kind of fact a negligence claim may examine.
Product liability is the body of law that applies when a defective product causes harm. It may rest on a design defect, a manufacturing defect, or a failure to warn. Federal consumer product rules offer one plain description of the idea. The Consumer Product Safety Commission's regulation at 16 C.F.R. § 1115.4 says "a defect is a fault, flaw, or irregularity that causes weakness, failure, or inadequacy in form or function," and adds that "a product may contain a defect even if the product is manufactured exactly in accordance with its design and specifications, if the design presents a risk of injury to the public." That regulation explains how a federal reporting duty works; state law sets what a product liability claim must prove.
Under 15 U.S.C. § 2064, a manufacturer, distributor or retailer of a product within the Commission's jurisdiction that obtains information reasonably supporting the conclusion that the product has certain defects or "creates an unreasonable risk of serious injury or death" must generally inform the Commission. A report or a recall under that law is not a finding that a product injured anyone.
Premises liability is the rule that an owner or occupier of property may be responsible for a dangerous condition on property it controls. The same accident can support more than one of these theories at once.
A signed waiver, meaning a document a rider signs agreeing to give up certain claims, may affect a claim in some states. Its effect depends on state law and on the exact wording of the document.