stream G550 Serial Number 5173 Plan D, LLC PART I. Workscope Description (continued) B. AVIONICS / CABIN ELECTRONICS 2. Avionics (continued) 2.4 ASC 912 and ASC 123 Planeview MOS Upgrade $3,306 ASC 912: This Service Change (ASC 912) installs the PlaneView Master Operating System (MOS) software Medi