Southern Railway Co. v. Lunsford

Background

A man who drove the engine on a fast passenger train died when the locomotive overturned after a front truck left the rails. The carrier used a device called Wright’s Little Watchman, attached under the locomotive, designed to release the air brakes if the front truck dropped off the track. The device had been used experimentally for about seven years and was not in common use or considered essential. The deceased’s family sued in state court claiming the railroad failed to keep the track in safe condition and failed to keep the Watchman in proper working order. A jury returned a verdict for the family and the state appellate court affirmed.

Reasoning

The Court addressed whether an experimental device like the Watchman counts as a “part or appurtenance” under the Boiler Inspection Act, which imposes an absolute duty to keep locomotive parts safe. The Court held that the statute covers integral parts of a finished locomotive and attachments prescribed by the Interstate Commerce Commission, but does not reach mere experimental gadgets that carriers add and that do not increase danger. Because witnesses agreed the Watchman remained experimental and was not required or inspected by the Commission, the trial judge’s instruction that absolute statutory liability applied to it was erroneous.

Real world impact

The Court reversed the state-court judgment. The decision means railroads can try experimental safety devices without automatically incurring strict statutory liability; such devices remain subject to the ordinary rules of liability rather than the Boiler Inspection Act’s absolute duty. The Court did not decide whether the Watchman’s failure actually caused the fatality.