X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 25 Aug 2011 10:48:33 -0400 Message-ID: X-Original-Return-Path: Received: from smtp124.dfw.emailsrvr.com ([67.192.241.124] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5102666 for lml@lancaironline.net; Wed, 24 Aug 2011 15:45:31 -0400 Received-SPF: none receiver=logan.com; client-ip=67.192.241.124; envelope-from=walter@advancedpilot.com Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp12.relay.dfw1a.emailsrvr.com (SMTP Server) with ESMTP id 79A533C03A9 for ; Wed, 24 Aug 2011 15:44:54 -0400 (EDT) X-Virus-Scanned: OK Received: by smtp12.relay.dfw1a.emailsrvr.com (Authenticated sender: walter-AT-advancedpilot.com) with ESMTPSA id 423283C031D for ; Wed, 24 Aug 2011 15:44:54 -0400 (EDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: [LML] In-flight Mag Check? From: Walter Atkinson In-Reply-To: X-Original-Date: Wed, 24 Aug 2011 13:44:52 -0600 Content-Transfer-Encoding: quoted-printable X-Original-Message-Id: <68D055A3-19C3-48F8-AA90-6AB92A0EA5AE@advancedpilot.com> References: X-Original-To: "Lancair Mailing List" X-Mailer: Apple Mail (2.1084) I have a habit of doing an in-flight, high power mag check just before = let-down on almost every flight. It is the best way to find weak plugs = and ignition issues long before they would surface on a run-up mag test. = iI have a bushel basket of plugs that fail the inflight test but will = pass a run-up mag check or a mechanic's bomb test. This finds weak = plugs as much as 35-40 hours before they would fail and be a = flight-stopper. It also lets you deal with the problem at home, at your = leisure instead of somewhere else. Walter On Aug 24, 2011, at 12:36 PM, John Hafen wrote: Gents: Is an in-flight magneto check generally recommended? =20 Thanks, John Hafen IVP 413AJ, 330 hours, and I've NEVER touched the key while flying...... On Aug 23, 2011, at 9:51 AM, paul miller wrote: 470 hours SNEW on mags and plugs. I did get #5 & #1 going offscale last = trip but that is normally corrected by tightening the connectors on that = side of the engine. The EGT wires use a friction connector. So, the = inflight mag check is the best initial diagnostic? Thanks for the idea, Paul Legacy, Calgary On 2011-08-23, at 6:01 AM, Walter Atkinson wrote: > How many hours on the mags? >=20 > Plugs? >=20 > Sounds like a mag.... >=20 > Walter >=20 >=20 >=20 > On Aug 22, 2011, at 5:18 PM, paul miller wrote: >=20 > Follow-up. EGTs bouncing all over.... -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html