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AACU Upgrade for 737 Carbon Brake

Boeing has certified new Carbon Brakes for production and field retrofit for the 737NG aircraft series. This Carbon Brake option reduces the aircraft weight by 300-700 pounds (136 to 318 kg) depending on aircraft model and airframe configuration. Crane Aerospace & Electronics new Antiskid/Auto-Brake Control Unit (AACU), part number 142-147, is designed to work with the Carbon Brakes.


Antiskid/Auto-Brake Control Unit for Carbon Brakes For field retrofits, the existing 42-935-2 AACU can be modified to the 142-147 configuration per Crane Service Bulletin 42-935-32-2.


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