X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 02 Mar 2012 12:19:20 -0500 Message-ID: X-Original-Return-Path: Received: from mail-alt3.hserv16.homehost.com.br ([93.104.215.62] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5425205 for lml@lancaironline.net; Fri, 02 Mar 2012 11:08:32 -0500 Received-SPF: pass receiver=logan.com; client-ip=93.104.215.62; envelope-from=ppxsn@novellisouza.com.br Received: from [189.117.223.30] (helo=30.223.117.189.isp.timbrasil.com.br) by hserv16.homehost.com.br with esmtpa (Exim 4.69) (envelope-from ) id 1S3V1I-0004Eu-IU for lml@lancaironline.net; Fri, 02 Mar 2012 13:07:52 -0300 From: Silvio Novelli Mime-Version: 1.0 (Apple Message framework v1257) Content-Type: multipart/alternative; boundary="Apple-Mail=_12705B2B-D3A8-410C-AD8C-BAE83F4AAF98" Subject: Re: [LML] MT Prop X-Original-Date: Fri, 2 Mar 2012 13:06:10 -0300 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <499DA5E5-B658-4D1A-A8A9-E26327A5C011@novellisouza.com.br> X-Mailer: Apple Mail (2.1257) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - hserv16.homehost.com.br X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - novellisouza.com.br --Apple-Mail=_12705B2B-D3A8-410C-AD8C-BAE83F4AAF98 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 This is not a kind of news I'd like to receive on a Friday. I also have = a MT in my 320 here in Brazil and the little assistance we have here is = too expensive. I personally had disassembled my prop twice and made the = maintenance by myself. It is not really a big job but MT refuse to sell = spare parts for my prop, including o'rings and seals. Anyway, I meantime = I'm keeping my two eyes on the prop and next time probably I'll go to a = Hartzell one or another trade. Silvio Novelli Lancair 320 PP-XSN +55 (14) 9614-3129 On 2 Jan 2012,w 09, at 9:54 AM, LenS790501@aol.com wrote: I=92d like to share my experience with the MTV-12-B MT prop on my = Lancair 360. The prop has 696 hours. I bought my LNC2 almost 5 years = ago from the original builder here in Arizona. Shortly after the = purchase, I noticed some grease seepage around the seals at the base of = the blades. The builder said MT had said this was normal and not = unusual. Unfortunately, it got worse to the point it was getting on the = canopy. The prop went to the prop shop here in Tucson (he=92s certified = by MT) and he sent it to Florida and I was down for 6 weeks. This was = quite an expensive ordeal. The seepage has occurred each year I=92ve = owned the plane but the shop here has fixed it under =93warranty=94 with = MT=92s latest =93fix=94 (obviously they are using a trial and error = method). This year there was seepage again but not too severe, so I = didn=92t remove the prop during the conditional inspection (first time = in 5 years). The test flight after the inspection went without a flaw. = Two days later I went to breakfast and after returning was cleaning the = plane and noticed more grease than previously and that one of the seals = had split which indicated relative motion between the blade and the = seal. I also noticed a small crack in the paint and what looked like = stress marks above the crack. Being Sunday, I waited till the next = morning to call the prop shop and he came out to look at the prop. He = said I shouldn=92t even start the engine let alone fly the plane. He = surmised by looking at the blade that one or more of the lag screws had = broken or had come out. I removed the prop and took it to his shop. Upon = disassembly, he found the head of one of the lag screws on the blade = with the split seal had sheared off and was bouncing around in the hub. = Upon further inspection, a second lag screw in that blade was found to = have sheared off at its midpoint and all the remaining lag screws in all = three blades were found to have loosened by at least =BC of a turn. I = was told had I flown to Colorado, instead of breakfast, as I was = planning to do in two days, there was a good possibility the blade would = have come off the hub in flight, which is a rather sobering thought. I = am awaiting the decision from MT as to what they will do to rectify the = situation.=20 In the mean time, I have ordered a Hartzell prop from Lancair and refuse = to put the MT prop back on my plane no matter what MT does or says. Len Spina N15EG Tucson --Apple-Mail=_12705B2B-D3A8-410C-AD8C-BAE83F4AAF98 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 This = is not a kind of news I'd like to receive on a Friday. I also have a MT = in my 320 here in Brazil and the little assistance we have here is too = expensive. I personally had disassembled my prop twice and made the = maintenance by myself. It is not really a big job but MT refuse to sell = spare parts for my prop, including o'rings and seals. Anyway, I meantime = I'm keeping my two eyes on the prop and next time probably I'll go to a = Hartzell one or another trade.

     Silvio = Novelli
 Lancair 320 PP-XSN
+55 (14) = 9614-3129




On 2  Jan 2012,w 09, at 9:54 AM, LenS790501@aol.com = wrote:

I=92d like to share my experience with the MTV-12-B MT prop on my = Lancair=20 360. The prop has 696 hours. I bought my LNC2  almost 5 years ago = from the=20 original builder here in Arizona. Shortly after the purchase, I noticed = some=20 grease seepage around the seals at the base of the blades. The builder = said MT=20 had said this was normal and not unusual. Unfortunately, it got worse to = the=20 point it was getting on the canopy. The prop went to the prop shop here = in=20 Tucson (he=92s certified by MT) and he sent it to Florida and I was down = for 6=20 weeks. This was quite an expensive ordeal. The seepage has occurred each = year=20 I=92ve owned the plane but the shop here has fixed it under =93warranty=94= with MT=92s=20 latest =93fix=94 (obviously they are using a trial and error method). = This year=20 there was seepage again but not too severe, so I didn=92t remove the = prop during=20 the conditional inspection (first time in 5 years). The test flight = after the=20 inspection went without a flaw. Two days later I went to breakfast and = after=20 returning was cleaning the plane and noticed more grease than previously = and=20 that one of the seals had split which indicated relative motion between = the=20 blade and the seal. I also noticed a small crack in the paint and what = looked=20 like stress marks above the crack. Being Sunday, I waited till the next = morning=20 to call the prop shop and he came out to look at the prop. He said I = shouldn=92t=20 even start the engine let alone fly the plane. He surmised by looking at = the=20 blade that one or more of the lag screws had broken or had come out. I = removed=20 the prop and took it to his shop. Upon disassembly, he found the head of = one of=20 the lag screws on the blade with the split seal had sheared off and was = bouncing=20 around in the hub. Upon further inspection, a second lag screw in that = blade was=20 found to have sheared off at its midpoint and all the remaining lag = screws in=20 all three blades were found to have loosened by at least =BC of a turn. = I was told=20 had I flown to Colorado, instead of breakfast, as I was planning to do = in two=20 days, there was a good possibility the blade would have come off the hub = in=20 flight, which is a rather sobering thought. I am awaiting the decision = from MT=20 as to what they will do to rectify the situation.
In the mean time, = I have=20 ordered a Hartzell prop from Lancair and refuse to put the MT prop back = on my=20 plane no matter what MT does or says.
Len Spina
N15EG
Tucson

= --Apple-Mail=_12705B2B-D3A8-410C-AD8C-BAE83F4AAF98--