X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 23 Oct 2005 12:29:54 -0400 Message-ID: X-Original-Return-Path: Received: from n2b.bulk.scd.yahoo.com ([209.73.160.69] verified) by logan.com (CommuniGate Pro SMTP 5.0c6) with SMTP id 780813 for lml@lancaironline.net; Sun, 23 Oct 2005 12:29:13 -0400 Received-SPF: none receiver=logan.com; client-ip=209.73.160.69; envelope-from=naf@britevalley.com Received: from [66.218.66.58] by n24.bulk.scd.yahoo.com with NNFMP; 23 Oct 2005 16:28:18 -0000 X-Original-Date: 23 Oct 2005 09:28:18 -0700 X-yahoo-newman-property: wss X-yahoo-newman-id: null Received: from [66.218.85.35] by mailer7.bulk.scd.yahoo.com with SMTP; 23 Oct 2005 16:28:18 -0000 Received: from milter4.wss.scd.yahoo.com (66.218.85.19) by mta4.wss.scd.yahoo.com (7.0.042) id 42FD96520193B933 for lml@lancaironline.net; Sun, 23 Oct 2005 09:28:18 -0700 Received: from paul (dpc693576099.direcpc.com [69.35.76.99]) (authenticated bits=0) by milter4.wss.scd.yahoo.com (8.13.1/8.13.1) with ESMTP id j9NGRe3f071930 for ; Sun, 23 Oct 2005 09:27:52 -0700 (PDT) X-Original-Message-Id: <200510231627.j9NGRe3f071930@milter4.wss.scd.yahoo.com> From: "Paul Nafziger" X-Original-To: "'Lancair Mailing List'" Subject: Gear Sequence Valve problem X-Original-Date: Sun, 23 Oct 2005 09:27:39 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C5D7B4.0659CA00" X-Mailer: Microsoft Office Outlook, Build 11.0.6353 Thread-Index: AcXX7m5njrExa0xFSsO3D64LUJC+hA== X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C5D7B4.0659CA00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Went out this morning for a short flight in LNC2 N7PN. It was shorter than I planned. On takeoff, the gear transit light stayed on and the right main green light remained on. I pulled the circuit breakers and did a 90-270 back to a low approach to runway 29 with the rising sun behind me. My shadow showed all three gear extended, but I only had one light. I pulled up to a downwind, tried the hydraulics again to no avail, pulled the breakers, opened the bypass valve, fishtailed the airplane, and the left main green light illuminated. When I slowed to about 90 knots, the nose showed down and locked, so I landed. Total flight time was about 6 minutes. When I dismounted, I noticed hydraulic fluid on the right flap. I crawled under the airplane and the gear door sequence valve had come apart. The snap ring holding the mechanism in place apparently popped out or something. I examined the valve in the right gear well and saw no obvious signs of wear, so I really don't know what happened. I had never dismantled the valve, so I don't know if the snap ring was installed properly or not. I hadn't paid much attention to the sequence valves other than inspecting them well at the annual condition inspection. From now on, they'll be a specific preflight item. Naf Paul Nafziger LNC2 N7PN ------=_NextPart_000_0012_01C5D7B4.0659CA00 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Went = out this=20 morning for a short flight in LNC2 N7PN. It was shorter than I=20 planned. On takeoff, the gear transit light stayed on and the = right main=20 green light remained on. I pulled the circuit breakers and did a = 90-270=20 back to a low approach to runway 29 with the rising sun behind me. = My=20 shadow showed all three gear extended, but I only had one light. I = pulled=20 up to a downwind, tried the hydraulics again to no avail, pulled the = breakers,=20 opened the bypass valve, fishtailed the airplane, and the left main = green light=20 illuminated. When I slowed to about 90 knots, the nose showed down = and=20 locked, so I landed. Total flight time was about 6=20 minutes.

When I = dismounted, I=20 noticed hydraulic fluid on the right flap. I crawled under the = airplane=20 and the gear door sequence valve had come apart. The snap ring = holding the=20 mechanism in place apparently popped out or something. I examined = the=20 valve in the right gear well and saw no obvious signs of wear, so I = really don't=20 know what happened. I had never dismantled the valve, so I don't = know if=20 the snap ring was installed properly or not. I hadn't paid much = attention=20 to the sequence valves other than inspecting them well at the annual = condition=20 inspection. From now on, they'll be a specific preflight=20 item.

Naf

Paul Nafziger

LNC2 N7PN

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