<h1>Uncommanded RAT deployment on international 787 prompts regulator probe, manufacturer fixes, and pilots' inspection demands</h1> An aircraft operating an international passenger flight experienced an uncommanded deployment of its Ram Air Turbine (RAT) during final approach; the aircraft landed safely. The national aviation regulator has opened a probe and maintenance actions recommended by the manufacturer were reportedly completed before the aircraft was returned to service. A pilots' association has urged a comprehensive inspection of the Boeing 787 electrical systems, citing health-monitoring fault data implicating a Bus Power Control Unit anomaly and referencing a recent fatal 787 accident under separate investigation by the accident probe agency. Potential legal issues include regulatory compliance, airworthiness oversight, manufacturer liability, and the scope of mandated fleet inspections.