te work completed) Aircraft: Gulfstream, Type: G-1159, SIN 151, Date: 03119/98, W.O. 12307 Page 1 oft Removed the existing Universal Avionics model UNS-1A FMS systems and Canadian Marconi VLF/Omega sensor, and installed new Universal Avionics UNS-D FMS systems. The existing Universal Radio Ttining Unit, D