Return-Path: Received: from gw-us4.philips.com ([63.114.235.90]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Tue, 10 Oct 2000 12:08:33 -0400 Received: from smtprelay-us2.philips.com (localhost.philips.com [127.0.0.1]) by gw-us4.philips.com with ESMTP id LAA19180 for ; Tue, 10 Oct 2000 11:15:42 -0500 (CDT) (envelope-from timothy.ong@philips.com) Received: from smtprelay-nam2.philips.com(167.81.233.16) by gw-us4.philips.com via mwrap (4.0a) id xma019178; Tue, 10 Oct 00 11:15:42 -0500 Received: from AMLMS01.DIAMOND.PHILIPS.COM (amlms01sv1.diamond.philips.com [161.88.79.213]) by smtprelay-us2.philips.com (8.9.3/8.8.5-1.2.2m-19990317) with ESMTP id LAA27982 for ; Tue, 10 Oct 2000 11:15:42 -0500 (CDT) Received: by AMLMS01.DIAMOND.PHILIPS.COM (Soft-Switch LMS 4.0) with snapi via AMEC id 0056910007886882; Tue, 10 Oct 2000 11:17:41 -0500 From: timothy.ong@philips.com To: Subject: Re: Door seal pump Message-ID: <0056910007886882000002L122*@MHS> Date: Tue, 10 Oct 2000 11:17:41 -0500 X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> We have the same problem in a non-pressurized IV. At higher altitudes it does the exact same thing. We fly for almost an hour and the same sequence occurs. We just pull the breaker and it never leaks down. I think the pump is marginal on pumping pressure with the decrease of air density; therefore, it just can't reach the switch pressure. Typical flights are FL180 to FL250. Regards, Timothy Ong >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>