The Boeing 777—the best-selling long-haul carrier in the history of aviation—is remarkably efficient and extremely dependable. And its life span is exceptional: over 30 years. But what’s the reason behind this record-breaking longevity?

Boeing 777: The Heavy Check follows each stage of a massive operation in which a Triple Seven is completely taken apart, inspected, and entirely refurbished. It’s an incredible surgical procedure that is carried out every 16 years of use and tens of thousands of flight hours, so the aircraft can remain at the cutting edge of technology, comfort and safety.