Delta Air Lines is planning to retrofit their whole fleet, consisting of 1224 planes with LED lights to improve maintenance and operating cost. 

One of the often forgotten parts of the airline business is lighting. While numerous carriers speak of starry LED skies in Boeing 777 and Airbus A380 planes, realities are that those shiny examples of world’s most advanced aircraft make for a tiny minority in any fleet (sans Cathay Pacific, Emirates and Singapore Airlines – which only fly widebody planes), and the majority of planes flying are workhorses such as Airbus A320 or Boeing 737 series. In order to improve operating and maintenance costs of its whole fleet, Delta Air Lines pulled something not a whole lot of people expected: an LED lights retrofit order for the whole fleet, first 772 so-called ‘mainline’ planes, with an option for 452 additional planes (those flying for Delta Connection). More on the story at

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