not considered abnormal as long as they are stable. On airplanes Serial Number (SN) 1310 and subsequent and airplanes SN 1000 through 1309 having Aircraft Service Change PRODUCTION AIRCRAFT SYSTEMS 2A-36-00 Page 3 January 31102 Rey is661 6 EFTA_R1_02095979 EFTA02705527 COMIC:1M IV OPERATING MANUAL (ASC) 313

raft. Sent NCU's to manufacturer for software upgrade from software 4.1 to software 5.2. In accordance with Gulfstream Aerospace Corporation (GAC), Aircraft Service Change (ASC) No. 349AM6. Received modified NCU's from the manufacturer new NCU Part Number is 7018879-03014. NCU's keep their original Serial Numbers. Rei