Pratt & Whitney aims to complete re-delivery to Airbus of the last of 55 rectified PW1100G geared turbofans affected by the recent knife edge seal issue by the end of April, but acknowledges the problem has cost the engine maker $50 million.

Boeing test pilots completed a 3-hour, 10 min. first flight of the 737-7, the third and smallest member of the 737 MAX family, when the aircraft landed at Boeing Field, Seattle, on March 16.

United Technologies (UTC), which is in the process of buying Rockwell Collins, has signed an agreement with ultra-important customer Boeing, representing a green light for UTC’s acquisition and consolidation of major aerospace and defense suppliers.

United Airlines is “actively pursuing” more used aircraft and sees its recently activated strategy of adding second-hand lift to be a long-term play that provides more fleet flexibility, a top executive said.

Boeing's plant in Everett, built in 1968, is one of the largest building in the world. As aircraft types have changed, so have assembly lines to produce the new aircraft. Boeing is now transitioning from producing the 777s to the 777X in a three-year timeframe. ATW correspondent Kurt Hofmann was on site to give you exclusive photos of Boeing's production plant.