From: Larry Visoski clia> To: Je vacation <jeevacation®gmail.com> Cc: Rich Kahn Subject: GIV Date: Thu, 11 Jun 2015 22:53:38 +0000 Jeffrey The GIV is return to Service, I ground ran engines and systems check good., -Changed #1 ADC air data computer,. -voltage checked left converter with digital meter: Volts, Freq and 400Hz output, heat soaked while runner for hour on ramp, checked good. -changed two BUSS Couplers for #2 FGC Flight Guidance Computer.,nuisance item, checks good now. -BUSS control relay fail 2 & 3 during initial power up is normal nuisance code, and can be cleared by pushing Nutcracker test switch (squat switch or WOW, Weight On Wheels) Circuit, according to HoneyWell Tech ops and SAV Tech support this is normal nuisance item,. But can be remedied by upgrade of FGC computers from our current -905 to -906 computers., system operates normal. Our GIV has first generation SPZ8000 autopilot, GIVSP has SPZ8400 and GV had SPZ8800., I plan test flight in Helicopter Ilam tomorrow for blade tracking., Possible test flight for vibration in GIV around 5pm, depends how heli flight goes,. I'll take several Gulfstream Techs to experience our buffet/vibration for opinions„ Thx Larry Sent from my iPhone EFTA00666885