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X-Original-To: lml@lancaironline.net
Subject: Re: [LML] IVP boost pump cooling
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----------MB_8CB51002BDCEC8D_5C0_14B1_MBLK-M01.sysops.aol.com
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Colyn,

My boost pump is on from start to finish --now has over 1200 hours. No insul=
ation it or near it. It is under the co-pilot floorboard.

Jeff



Any IVP drivers

a) fly for extended periods with low boost on--

b) have the pump buried

c) did or didn't have problems with it?




-----Original Message-----
From: Colyn Case at earthlink <colyncase@earthlink.net>
To: lml@lancaironline.net
Sent: Thu, 29 Jan 2009 10:23 pm
Subject: [LML] IVP boost pump cooling



There's a FAA service difficulty report out on Dukes fuel pumps as installed=
 in a DA40.

From the sounds of it the pump is in the engine compartment in this installa=
tion.

In a IVP it's typically on the firewall or on the floor on the co-pilot side=
.

I was about to put down some sound insulation and carpet over this but now w=
ondering

if there could be a problem with heat.

=C2=A0

Any IVP drivers

a) fly for extended periods with low boost on

b) have the pump buried

c) did or didn't have problems with it?

=C2=A0

Colyn

=C2=A0

=C2=A0

--------------------------------------------------------

=C2=A0=20
Diamond DA40F

Failed Electrical Fuel Pump

Before the next student=E2=80=99s flight, the electric fuel pump (Dukes p/n=20=
5100-00-20 installed on a Lycoming O360A4M) was found inoperative. Inadequat=
e cooling is believed to be the source of the malfunction. The submitter sug=
gests providing ram air for proper cooling of the fuel pump and motor.

Nine pumps installed on four identical aircraft were discovered failed. T
ime in service ranged from 102.3 hours to 593.2 hours and averaged 317.2 hou=
rs since overhaul.

Part Total Time: Various.


=C2=A0

=C2=A0

=C2=A0

=C2=A0

=C2=A0



[Image Removed]=20


----------MB_8CB51002BDCEC8D_5C0_14B1_MBLK-M01.sysops.aol.com
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Colyn,<br>
<br>
My boost pump is on from start to finish --now has over 1200 hours. No insul=
ation it or near it. It is under the co-pilot floorboard.<br>
<br>
Jeff<br>
<br>

<BLOCKQUOTE style=3D"PADDING-LEFT: 3px; BORDER-LEFT: blue 2px solid">

<div><FONT face=3DArial size=3D2>Any IVP drivers</FONT></div>


<div><FONT face=3DArial size=3D2>a) fly for extended periods with low boost=20=
on--</FONT></div>


<div><FONT face=3DArial size=3D2>b) have the pump buried</FONT></div>


<div><FONT face=3DArial size=3D2>c) did or didn't have problems with it?</FO=
NT></div>
</BLOCKQUOTE><br>
<br>
<br>
-----Original Message-----<br>
From: Colyn Case at earthlink &lt;colyncase@earthlink.net&gt;<br>
To: lml@lancaironline.net<br>
Sent: Thu, 29 Jan 2009 10:23 pm<br>
Subject: [LML] IVP boost pump cooling<br>
<br>


<div id=3DAOLMsgPart_3_38b74e94-0808-4871-a3d8-45c87a07e9df>

<div><FONT face=3DArial size=3D2>There's a FAA service difficulty report out=
 on Dukes fuel pumps as installed in a DA40.</FONT></div>


<div><FONT face=3DArial size=3D2>From the sounds of it the pump is in the en=
gine compartment in this installation.</FONT></div>


<div><FONT face=3DArial size=3D2>In a IVP it's typically on the firewall or=20=
on the floor on the co-pilot side.</FONT></div>


<div><FONT face=3DArial size=3D2>I was about to put down some sound insulati=
on and carpet over this but now wondering</FONT></div>


<div><FONT face=3DArial size=3D2>if there could be a problem with heat.</FON=
T></div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2>Any IVP drivers</FONT  ></div>


<div><FONT face=3DArial size=3D2>a) fly for extended periods with low boost=20=
on</FONT></div>


<div><FONT face=3DArial size=3D2>b) have the pump buried</FONT></div>


<div><FONT face=3DArial size=3D2>c) did or didn't have problems with it?</FO=
NT></div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2>Colyn</FONT></div>


<div>&nbsp;</div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2>-------------------------------------------=
-------------</FONT></div>


<div><FONT face=3DVerdana color=3D#aa001e size=3D2>&nbsp;</FONT>=20

<div align=3Dleft><STRONG>Diamond DA40F</STRONG></div>
<FONT face=3D"Verdana, Arial, Helvetica, sans-serif" color=3D#aa001e>

<div align=3Dleft><STRONG>Failed Electrical Fuel Pump</STRONG></div>
</FONT>

<div align=3Dleft><FONT face=3D"Verdana, Arial, Helvetica, sans-serif">Befor=
e the next student=E2=80=99s flight, the electric fuel pump (Dukes p/n 5100-=
00-20 installed on a Lycoming O360A4M) was found inoperative. Inadequate coo=
ling is believed to be the source of the malfunction. The submitter suggests=
 providing ram air for proper cooling of the fuel pump and motor.</FONT></di=
v>


<div align=3Dleft><FONT face=3D"Verdana, Arial, Helvetica, sans-serif">Nine=20=
pumps installed on four identical aircraft were discovered failed. Time in s=
ervice ranged from 102.3 hours to 593.2 hours and averaged 317.2 hours since=
 overhaul.</FONT></div>


<div align=3Dleft><FONT face=3D"Verdana, Arial, Helvetica, sans-serif">Part=20=
Total Time: Various.</FONT></div>
</div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>=3D0
A

<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2></FONT>&nbsp;</div>


<div><FONT face=3DArial size=3D2>&nbsp;<IMG alt=3D"" src=3D"http://www.aviat=
ionsafetymagazine.com/newspics/29_2/0209-DukesFuelPump.jpg" width=3D288></FO=
NT></div>
</div>
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