Narrator: We went on board Delta's redesigned Boeing 777 with the people whose job it ... from the business-class cabin to the size of the closets to the size of the lavatories.

Although replacements are on the way, the legacy carrier operates the bulk of the remaining aging aircraft type.

Of 198 aircraft, 13 are legacy Air India Boeing 777-300 ERs. First-class cabins are available on several of these vintage aircraft. Twenty-seven legacy B787-8s, seven B787-9s, six A350-600s, eight ...