X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 25 Jun 2010 06:18:46 -0400 Message-ID: X-Original-Return-Path: Received: from vms173001pub.verizon.net ([206.46.173.1] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4370024 for lml@lancaironline.net; Thu, 24 Jun 2010 23:18:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.1; envelope-from=tom.gourley@verizon.net Received: from jacky0da39824a ([unknown] [71.111.139.80]) by vms173001.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0L4J00AYOVTR7Q53@vms173001.mailsrvcs.net> for lml@lancaironline.net; Thu, 24 Jun 2010 22:17:53 -0500 (CDT) X-Original-Message-id: Reply-to: "Tom Gourley" From: "Tom Gourley" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Fwd: LOBO Newsletter - Spring 2010 Edition X-Original-Date: Thu, 24 Jun 2010 20:17:41 -0700 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0012_01CB13DA.4C727980" X-Priority: 3 X-MSMail-priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 X-Antivirus: avast! (VPS 100624-1, 06/24/2010), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0012_01CB13DA.4C727980 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jeff, Thanks for sending out the newsletter. I was especially interested in = the Safety Corner column; a lot of good information in there. Maybe Bob = will consider writing a column about partial engine failures on takeoff. = There's a lot of focus on complete loss of power, but sometimes it = doesn't all go away; just most of it. It happened to me about a month = ago in a Commander 112. (I'm still building my Legacy.) I was taking off from Independence, OR (7S5) when, at 250 - 300' AGL, = there was a loud pop and the engine started coughing and belching, = running very rough, and just barely running at that. The short version = is it didn't quit completely and I was able to make a teardrop turn back = to the runway. I was down to slow flight airspeed (you have practised = slow flight turns, right?) but only lost about 50' in the turn. The = engine continued to pop and belch but it didn't quit. There are a lot = of farm fields around 7S5 and I was prepared to put it in one of them if = things got worse. Luckily I didn't have to, and part of that luck was = being solo with just under a half tank of fuel. After landing, and prying myself from the seat cushion, I removed the = top cowl and was surprised to see -- nothing wrong. No oil, no broken = cylinders, no loose parts. Another pilot, there were a few gathered = around by now, noticed the rocker cover of #1 wasn't nearly as warm as = the others. Removing the rocker cover and turning the prop through = revealed that the exhaust valve on #1 wasn't moving, not even a little. = And it was closed. This is the valve closest to the front of a Lycoming = IO-360. The engine was removed and taken to an overhaul shop where they = found the camshaft had broken into two pieces. The break was between = the intake and exhaust valves of cylinder #1. Nothing else was damaged. = The cam was installed new about 240 hours ago. Yes, it can happen to any of us. Keep reading those Safety Corner = articles. Tom Gourley ------=_NextPart_000_0012_01CB13DA.4C727980 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Jeff,

Thanks for sending out the = newsletter. I was=20 especially interested in the Safety Corner column; a lot of good=20 information in there. Maybe Bob will consider writing a column = about=20 partial engine failures on takeoff. There's a lot of focus on = complete=20 loss of power, but sometimes it doesn't all go away; just most of = it. =20 It happened to me about a month ago in a Commander 112. (I'm = still=20 building my Legacy.)

I was taking off from Independence, OR = (7S5) when,=20 at 250 - 300' AGL, there was a loud pop and the engine started coughing = and=20 belching, running very rough, and just barely running at that. The = short=20 version is it didn't quit completely and I was able to make a teardrop = turn back=20 to the runway. I was down to slow flight airspeed (you have = practised slow=20 flight turns, right?) but only lost about 50' in the turn. = The engine=20 continued to pop and belch but it didn't quit. There are a lot of = farm=20 fields around 7S5 and I was prepared to put it in one of = them if=20 things got worse. Luckily I didn't have to, and part of that luck = was=20 being solo with just under a half tank of fuel.

After landing, and prying myself from = the seat=20 cushion, I removed the top cowl and was surprised to see -- nothing = wrong. No oil, no broken cylinders, no loose parts. Another = pilot,=20 there were a few gathered around by now, noticed the rocker cover of #1 = wasn't=20 nearly as warm as the others. Removing the rocker cover and = turning the=20 prop through revealed that the exhaust valve on #1 wasn't moving, not = even a=20 little. And it was closed. This is the valve closest to = the=20 front of a Lycoming IO-360. The engine was removed and taken = to an=20 overhaul shop where they found the camshaft had broken into two = pieces. =20 The break was between the intake and exhaust valves of cylinder = #1. =20 Nothing else was damaged. The cam was installed new about 240 = hours=20 ago.

Yes, it can happen to any of us. = Keep reading=20 those Safety Corner articles.

Tom Gourley

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