onal cabin/cockpit communication capabilities. Installed SDCS system components include: 1 Ea. Satellite Comm Unit (SCU), P/N 153-017311-01 1 Ea. SCU Antenna, P/N 121-017537-01 (Sensor P/N S65-8282-101) 1 Ea. HPA/LNA, P/N 153-017310-01 The SCU Antenna is installed as FS 265 in accordance with KCA Dallas