Alpine Aerotech receives STC for Bell medium ADS-B installation Alpine Aerotech Press Release | April 30, 2021 Estimated reading time 2 minutes, 9 seconds. Alpine Aerotech announced that they have officially received Transport Canada Civil Aviation (TCCA) and Federal Aviation Administration (FAA) Supplemental Type Certificates (STCs) for the installation of Garmin GTX 335 and 345 series ADS-B transponders for Bell medium rotorcraft (205/212/412). Aerotech has also applied for a European Union Aviation Safety Agency (EASA) validation and is expecting approval within weeks. Alpine Aerotech...