Sender: <marv@lancaironline.net>
To:  lml@lancaironline.net
Date: Thu, 24 Sep 2009 22:08:03 -0400
Message-ID: <redirect-3865275@logan.com>
Received-SPF: pass
 receiver=logan.com; client-ip=206.46.173.15; envelope-from=n5zq@verizon.net
From: "Bill" <n5zq@verizon.net>
References: <list-3860964@logan.com>
Subject: Re: [LML] LNC2 Gear Up & Down Problems
MIME-version: 1.0
Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original
Content-transfer-encoding: 7bit

Lorn,

Like you, I often fly our 320 high (15,000 - FL190) for long periods of 
time. I haven't had this problem at all. Hard to understand how it could be 
a systemic problem when it occurs on yours but not on mine. I know that our 
planes are pretty similar and close in vintage.

Bill Harrelson
N5ZQ 320 1,700 hrs
N6ZQ  IV under construction


----- Original Message ----- 
From: "Lorn H Olsen" <lorn@dynacomm.us>
Subject: [LML] LNC2 Gear Up & Down Problems


>I have determined that the problem is caused when the hydraulic
> pressure at both switches is high enough that not only does the pump
> not run but also high enough that when the dump valve is opened the
> pressures are still not relieved to be below the pump run setting. eg.
> If I fly high and the temperature on the ground, after landing, is 60
> degrees farenheight more than the temperature in flight, the gear
> won't go up on the next flight.
>
> An EE friend of mine, after seeing our hydraulic system schematics,
> talking to Lancair and talking to Oildyne, has come up with 3
> solutions to the gear not going up and/or coming down. I am out of
> town and haven't had the chance to see the solutions. Would anyone be
> interested in a kit that solved the problem for $200 to $400.
>
> --
> Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst