<table><tr><th>From:</th><th>jeffrey E. &lt;jeevacation@gmail.com&gt;</th></tr><tr><td>Sent:</td><td>Saturday, August 8, 2015 6:41 PM</td></tr><tr><td>To:</td><td>Lvjet</td></tr><tr><td>Subject:</td><td>Re: GIV update</td></tr></table>

we have done the fan balancing three times. te=erboro , dry lube in montreal, re rigged the spoilers. and a=l flight controls. we are now willing to replace the trunion mount c=nnisters , we are only doing this with the understanding that =olls royce will live up to its obligations under corporpate care if this d=es not fix the problem that was obvious to everyone on our test flight

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On Sat, Aug=8, 2015 at 2:26 PM, Lvjet wrote:

## Jeffrey

I spoke to Gulfstream engine Tech Dave, he informs Gulfstrea= PBI was scheduled to accomplish an engine change on Monday for another cl=ent, This client just canceled his reservation. Gulfstream has the en=ine stand and Sling to remove our engines in house now.

Kathleen advises that if we install Loaner engines that are located in=lndianapolis, they require a post inspection from a previous install,=this takes apporx two days to accomplish, so my best case scenario would b= Friday arrival of loaner Engines in Palm Bch or Dallas if we elected=to have Dallas Airmotive to install, plus I'm not sure if Dallas =irmotive has available manpower to take us next week.

I spoke with Kathleen and Aline our Montreal Tech, appears T=unnion Mount Canister which handles fwd and aft movement should be re=laced, as I mentioned last night, this requires removing engine from =ylon in order to access Trunnion Mount.

Gulfstream has Two new Trunnion Mount Canisters in Savanah price= at $12,000 each.

According to my CMP Mx run, our canister were last changed in4>=A01998 at 3800 hours total time, we have 9000 hours total time on airframe= we have 5200 hours on current Mount canisters.

Here is my proposal if you agree:

Have Gulfstream PBI remove our engines with sling and install two new =runnion Mount Canisters and fly with our engines ONE more time. If I start=today or tomorrow, I should be able to test fly by Thursday or Friday.

If we install two loaner engines plus New Trunnion Mounts at the =ame time and we have smooth flight, we will not know if we had ant>=A0engine issue or Mount issue.

If we install loaner engines, it takes two days after each engine is r=moved to transfer all Gear box components (such as: air starter, Alternato=, hydraulic pump) to loaner engine, called "QEC" (Quick En=ine Change),. by just slinging our engine and installing New Trunnion moun=s, I can accomplish this in less time.

Our engines are due midlife overhaul on November 2018.

I have requested Gulfstream to price the removal and install labor cos= per engine, if memory serves correct, I believe labor to remove and insta=l is approx. $7,500 per engine,. I'll have firm labor cost as soon I h=ar back from my Gulfstream sales rep.

Kathleen needs until Late Monday for her to consult with Rolls Ro=ce in Germany, if there is any chance of early input for overha=l. By installing new Trunnion Mount Canisters and our problem still e=ists, this could assist in early input of our engines for o=erhaul.

## Jeffrey (cont.)

should I proceed with Trunnion Mount Canister install only ?=A0

thank you,.

Larry

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