Crane Aerospace & Electronics has received a supplemental type certificate (STC) from the European Aviation Safety Agency for its SmartStem Wireless Tire Pressure System for Cessna Citations. Models covered by the STC include the 550, S550, 560, 560XL, 560XLS, 560XLS+, 650, and 750. Operators can take tire pressure readings in seconds without risking stem damage or gas loss, simplifying the preflight checklist. To meet customer demand, Crane is in the process of working with multiple regulatory authorities on certifying SmartStem for other business, regional, and large commercial aircraft. SmartStem tire pressure sensors replace traditional tire inflation valves and work with a unique piece of ground support equipment to read and display tire pressure, temperature, and other stored information wirelessly. Readings take only seconds and can be done without removing the valve cap. The recorded data can be used as part of a tire management program to ensure tires are always properly inflated, improving operating safety and extending tire life.