Installation of an APU Fire Bottle in accordance with Gulfstream Aerospace Corporation Index List GC514428001 Rev L, dated July 31, 2011 or later FAA approved revision.FAA accepted Airplane Flight Manual Supplement, GC51442M001, dated April 8, 1999 or later FAA approved revision is required for fully operational configurations (non-spare). For the model GV, Instructions for Continued Airworthiness, GC51442A001, Revision C, dated September 28, 2010 or later FAA accepted revision is required, and must be made available to the operator at the time of installation. For the model GV-SP, Instructions for Continued Airworthiness, CE52442A000, Revision A, dated October 04, 2010 or later FAA accepted revision is required, and must be made available to the operator at the time of installation.

Installation of Electronics Int'l digital automatic engine analyzer.

Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.