US Airways hired independent contractor Aubry Company to maintain and repair a luggage conveyor system at San Francisco International Airport. The airline neither directed nor had its employees participate in Aubry’s work. The conveyor lacked certain guards required by regulations. An employee of Aubry Company, Anthony Lujan, was injured after his arm was caught in the moving parts. Is US Airways liable for injuries to Aubry’s employees allegedly resulting from its failure to comply with California’s Occupation Safety and Health Act and its regulations? Or is the duty to comply with the regulations for the benefit of an independent contractors’ employees delegable?