X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from na01-bn1-obe.outbound.protection.outlook.com ([207.46.163.156] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6601398 for lml@lancaironline.net; Fri, 15 Nov 2013 16:29:42 -0500 Received-SPF: pass receiver=logan.com; client-ip=207.46.163.156; envelope-from=rpastusek@htii.com Received: from BY2PR07MB550.namprd07.prod.outlook.com (10.141.217.145) by BY2PR07MB551.namprd07.prod.outlook.com (10.141.217.150) with Microsoft SMTP Server (TLS) id 15.0.820.5; Fri, 15 Nov 2013 21:29:05 +0000 Received: from BY2PR07MB550.namprd07.prod.outlook.com ([10.141.217.145]) by BY2PR07MB550.namprd07.prod.outlook.com ([10.141.217.145]) with mapi id 15.00.0820.005; Fri, 15 Nov 2013 21:29:05 +0000 From: Robert R Pastusek To: Lancair Mailing List Subject: RE: [LML] Re: N181AM nose gear collapse Thread-Topic: [LML] Re: N181AM nose gear collapse Thread-Index: AQHO4js8vxlrrXxoekGOuX1D4bg0v5omzQBQ Date: Fri, 15 Nov 2013 21:29:05 +0000 Message-ID: <99c72b5046904675b1cf07d14f40e94d@BY2PR07MB550.namprd07.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [108.28.164.93] x-forefront-prvs: 0031A0FFAF x-forefront-antispam-report: SFV:NSPM;SFS:(199002)(189002)(377454003)(51914003)(24454002)(83322001)(56816003)(19580405001)(80976001)(74366001)(76786001)(19580395003)(76796001)(81686001)(81816001)(76576001)(16236675002)(50986001)(47976001)(33646001)(51856001)(54356001)(53806001)(46102001)(4396001)(15975445006)(47446002)(87266001)(74662001)(49866001)(47736001)(81542001)(74502001)(69226001)(31966008)(74876001)(15202345003)(81342001)(63696002)(77982001)(59766001)(79102001)(85306002)(74316001)(54316002)(56776001)(80022001)(2656002)(65816001)(66066001)(87936001)(83072001)(74706001)(19300405004)(76482001)(24736002);DIR:OUT;SFP:;SCL:1;SRVR:BY2PR07MB551;H:BY2PR07MB550.namprd07.prod.outlook.com;CLIP:108.28.164.93;FPR:;RD:InfoNoRecords;A:1;MX:1;LANG:en; Content-Type: multipart/alternative; boundary="_000_99c72b5046904675b1cf07d14f40e94dBY2PR07MB550namprd07pro_" MIME-Version: 1.0 X-OriginatorOrg: htii.com --_000_99c72b5046904675b1cf07d14f40e94dBY2PR07MB550namprd07pro_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Bill, The IV/IV-P series use a completely different system, so issues are not the= same. BUT...relay failures and other issues can cause serious problems. Worth dis= cussing. Did you get the building manuals with your airplane? These would be a great= help in understanding how the system works, and what to do when it doesn't= . Note that I said when, not if... You will some day need to deal with hard= ware failures. You should already know how to do an emergency gear extensio= n, and you should test this yourself, in flight. Call me if you have not al= ready done this. Bob Pastusek 703-271-8008 For LOBO From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bill= MacLeod Sent: Friday, November 15, 2013 2:44 PM To: lml@lancaironline.net Subject: [LML] Re: N181AM nose gear collapse I've been following this discussion with great interest, as the new owner o= f a L IV (N84PL/serial #84). Does the IV use the same system and is it thus subject to the same failure? On Fri, Nov 15, 2013 at 4:19 AM, Adam Molny > wrote: John - Thanks for the detailed history. You're the second person to mention puttin= g diode suppression across the motor terminals. I've been following the LML= and LNN since 2000 but must have missed that somehow. There have also been= several good suggestions for better or different relays. Since this is an = existing installation, my plan is to add the bridge rectifier mentioned in = the attached article. That should accomplish the same goal of extending rel= ay life and preventing future failures. I'll take a closer look at the relays when I go back to Ohio to retrieve my= plane. -Adam Molny ________________________________ From: John Cooper [mailto:snopercod@comporium.net] I'm surprised to learn of this failure and feel badly because I'm the guy w= ho recommended the Bosch relays back in the nineties. ...Do you intend to take the relay apart to verify that the contacts are, i= n fact, welded? Bosch might be interested as well, but I certainly wouldn't= mention that you're using their relays in an airplane. -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --_000_99c72b5046904675b1cf07d14f40e94dBY2PR07MB550namprd07pro_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bill,

The IV/IV-P series use a completely different syste= m, so issues are not the same.

BUT…relay failures and other issues can cause= serious problems. Worth discussing.
Did you get the building manuals with your airplane? These would be a great= help in understanding how the system works, and what to do when it doesn&#= 8217;t. Note that I said when, not if… You will some day need to deal with hardware failures.= You should already know how to do an emergency gear extension, and you sho= uld test this yourself, in flight. Call me if you have not already done thi= s.

 

Bob Pastusek

703-271-8008

For LOBO

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bill MacLe= od
Sent: Friday, November 15, 2013 2:44 PM
To: lml@lancaironline.net
Subject: [LML] Re: N181AM nose gear collapse

 

I've been following this discussion with great inter= est, as the new owner of a L IV (N84PL/serial #84).

 

Does the IV use the same system and is it thus subje= ct to the same failure?

 

 

On Fri, Nov 15, 2013 at 4:19 AM, Adam Molny <Adam@validatio= npartners.com> wrote:

John –

 

Thanks for the detailed history. You’r= e the second person to mention putting diode suppression across the motor terminals. I’ve been following the LML and LNN since 2000 = but must have missed that somehow. There have also been several good sugges= tions for better or different relays. Since this is an existing installatio= n, my plan is to add the bridge rectifier mentioned in the attached article. That should accomplish the same goal of= extending relay life and preventing future failures.

 

I’ll take a closer look at the relays = when I go back to Ohio to retrieve my plane.

 

-Adam Molny

From: John Cooper [mailto:snopercod@comporium.net]

I'm surprised to learn of this failure and feel badly because I'm the guy w= ho recommended the Bosch relays back in the nineties.
…Do you intend to take the relay ap= art to verify that the contacts are, in fact, welded? Bosch might be intere= sted as well, but I certainly wouldn't mention that you're using their rela= ys in an airplane.


--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html

 

--_000_99c72b5046904675b1cf07d14f40e94dBY2PR07MB550namprd07pro_--