The Boeing Co. (Seattle, Wash.) announced on Aug. 4 that new carbon/carbon brakes designed for its Next-Generation 737 have earned certification from the U.S. Federal Aviation Admin. (FAA). The brake system, supplied by Messier-Bugatti (Vélizy-Villacoublay, France), entered service shortly thereafter when Boeing delivered a Next-Generation 737-700 to Delta Air Lines, the first of 10 737-700s the airline will receive over the next several years. The carbon fiber brakes weigh 700 lb/320 kg less than high-capacity steel brakes for Next-Generation 737-700, -800 and -900ER (Extended Range) airplanes and 550 lb/250 kg less than standard-capacity steel brakes for Next-Generation 737-600s and -700s. Reduced weight contributes to reductions in associated fuel burn and CO₂ emissions, depending on airline operations.