The Railway-Worker Rules the Jones Act Borrows
The railway laws that the Jones Act brings in are the Federal Employers' Liability Act, often called FELA. Its central liability rule, 45 U.S.C. § 51, makes the employer liable for injury or death "resulting in whole or in part from the negligence of any of the officers, agents, or employees of such carrier, or by reason of any defect or insufficiency, due to its negligence, in its cars, engines, appliances, machinery, track, roadbed, works, boats, wharves, or other equipment."
The phrase "in whole or in part" carries most of the weight. The employer's negligence does not need to be the only cause. If it was one of several causes, the statute's language still reaches it. The list of equipment also matters at sea, because it names boats and wharves alongside machinery and appliances.
In plain terms, a negligence claim rests on four elements. Duty is the employer's obligation to use reasonable care toward the seaman. Breach is a failure to meet that obligation. Causation is the link between that failure and the harm. Damages are the losses the injury caused. Whether each element is met depends on the facts.
For a seaman, this means the question is not only whether something went wrong. It is what went wrong, who controlled it, and whether the employer's people or equipment played a part. Readers looking at a winch, a line or a hatch that gave way may find the page on maritime equipment failure injuries useful alongside this one. Facts that often matter include the conditions aboard, the equipment involved, and what an officer or crew member did or did not do.