<table><tr><th>From:</th><th>jeffrey E. &lt;jeevacation@gmail.com&gt;</th></tr><tr><td>Sent:</td><td>Monday, July 18, 2016 3:31 PM</td></tr><tr><td>To:</td><td>Lvjet</td></tr><tr><td>Subject:</td><td>Re: GIV update</td></tr></table>

my fault

On Mon, Jul 18, 2016 at 11:19 AM, Lvjet &g=; wrote:

## Jeffrey,

I checked my old emails for Friday, I never received your email to go =ome,. I just received this email today at 11:03am July 18th to Go Home =A0

. for some reason, it just arrived in my inbox.

island internet delivery delay,

sorry,. I should have double checked with you on Friday, I thought you=said, didn't feel well when we arrived and you wanted us to remain on =TT.,

I'll always double check in the future, if there is a question in =egards to going home,.

## thx

Larry

-----Original Message-----
From: jeffrey E. <jeevacation@gmail.com <mailto:jeevacation@gmail.com> >
To: Lvjet
Sent: Mon, Jul 18, 2016 11:03 am
Subject: Re: GIV update

ok then , go home,

On Fri, Jul 15, 2016 at 10:51AM, Lvjet > wrote:

## Jeffrey

I spoke to Tech ops, John and Mike,. Normal PSI in Duct pressure at FL450 (45,000') is 19 to 22psi, it =aries with Density Altitude and Temperature slightly. Mike indicated that Gulfstream does not like the term "Buffet&quo=; or "Vibration" they use the term "TRIM Variance" 4 14/0 if the exhausted air from pylon precooler air modulation valve w=s not equal to both L/H and R/H the air is disrupted over the tail section=of the aircraft Causing a TRIM VARIANCE. I informed Mike that we had to change the Gasket on L/H anticipator an= found a Loose Temp sensor in Left Pylon, and we changed the R/H pylon Ant=ciptor gasket as a precautionary measure.

## Jeffrey (cont.)

Now that Bleed system Duct pressure is tight and equal, Mike feels the=aircraft is operating at factory

specs,

Depending on pressurization Bleed system requirements, the Duct pressu=e will vary when 12th stage bleed valve opens for decent. during climb the=duct pressure can read as high as 40psi, since the HP Bleed valve located =n each engine is set to modulate exhausted air at 40PSI max into the cabin=.

if air was blowing by the Anticipator gasket, this effects the amount =f air into the cabin, since the Anticipator is anticipating the 400 degree=air, and adjust the HP regulator valve accordingly. We have changed Both HP Regulator valves about a year ago,. so they ar= good on both engines.

Equal temps and PSI on the panel in Radio rack are important informati=n, for smooth ops. thx Larry

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=C2 please note

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## JEE

Unauthorized use= disclosure or copying of this communication or any part thereof is str=ctly prohibited and may be unlawful. If you have received this commu=ication in error, please notify us immediately by return e-mail or by e=mail to jeevaca=ion@gmail.com <mailto:jeevacation@gmail.com> , and destroy this communication and all copies thereo=, including all attachments. copyright -all rights reserved

## JEE (cont.)

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