X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 22 Jun 2008 21:51:17 -0400 Message-ID: X-Original-Return-Path: Received: from py-out-1112.google.com ([64.233.166.178] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2979326 for lml@lancaironline.net; Sun, 22 Jun 2008 10:50:01 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.233.166.178; envelope-from=ronlaughlin@gmail.com Received: by py-out-1112.google.com with SMTP id u77so768495pyb.12 for ; Sun, 22 Jun 2008 07:49:19 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=GdwjDF32q+aYe0NHLd93NjqEYi+1+79TVszonIfhFbhjp+DcC2p2iptSQvNciL/pS2 7uIogGUop6NvhYBOfQ2pE2R5FEOSAC34YCh3foZueQPE1wzTFgdz6IJDUCysbhzJP45v b4GSXkVz4KFy6dJadynNq82VKnqizJespNYsQ= Received: by 10.142.157.15 with SMTP id f15mr2857239wfe.96.1214146158510; Sun, 22 Jun 2008 07:49:18 -0700 (PDT) Received: by 10.150.215.7 with HTTP; Sun, 22 Jun 2008 07:49:18 -0700 (PDT) X-Original-Message-ID: <6412e9f20806220749n461b136am4108434ec58c472@mail.gmail.com> X-Original-Date: Sun, 22 Jun 2008 09:49:18 -0500 From: "Ron Laughlin" X-Original-To: "Lancair Mailing List" Subject: Re: [LML] IAS Error/ Trouble shooting tips? In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Static port is probably not in dead air. Maybe seeing a little negative pressure at speed? Ron Laughlin On 6/22/08, Larry Henney wrote: > > Gents, > > I flew formation with a 320 today that had an IAS 20 kts above mine in > welded wing. The weird part was that the a/c had an IFR pitot/static > transponder cert less than a month ago. Additionally, the internal static > port was found to be loose and the shop reattached it and certified the > installation. Meanwhile the airspeed indicator was sent out for check out > and was yellow tagged with no problem found. > > What is wrong with my buddies airspeed system? Inquiring minds need to > know. > > TIA for helping us mitigate trouble shooting. > > Larry Henney > N360LH > IAS within a couple kts of a dozen other planes. -- Ron Laughlin