X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 19 Sep 2011 07:43:33 -0400 Message-ID: X-Original-Return-Path: Received: from nm33.bullet.mail.bf1.yahoo.com ([72.30.238.133] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with SMTP id 5128719 for lml@lancaironline.net; Sun, 18 Sep 2011 21:02:00 -0400 Received-SPF: none receiver=logan.com; client-ip=72.30.238.133; envelope-from=tmoradia@yahoo.com Received: from [98.139.212.147] by nm33.bullet.mail.bf1.yahoo.com with NNFMP; 19 Sep 2011 01:01:24 -0000 Received: from [98.139.212.225] by tm4.bullet.mail.bf1.yahoo.com with NNFMP; 19 Sep 2011 01:01:24 -0000 Received: from [127.0.0.1] by omp1034.mail.bf1.yahoo.com with NNFMP; 19 Sep 2011 01:01:24 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 365262.47952.bm@omp1034.mail.bf1.yahoo.com Received: (qmail 24418 invoked by uid 60001); 19 Sep 2011 01:01:24 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=6GYqWoUGENfw3/ySo/Zukhf6Hpcod8wbwcJsnWlvhvlS8RwJ0neU4mSPK8WGt0H8gF+QwugMn9ciapTY78mzlDR61lCrk2XBqFNDwANibxWyCPm/NrZ0+9Td2Q8LnBIR/OcA/fgtYtTYTHHJ/NHAmLY02ech5f5pFl1IOQaY5rY=; X-YMail-OSG: GHhm1zEVM1nIWkY35hAgI6rtwSY17UBjcf.wrbGfPHUj4IP bIqGlEdbM_zO8U4eEgQOYn2wia7FgOz.WJyzbZGYkKmVIGUWri7D8SQ.mEd6 esLyL2GaKEHt9J66Cf1ivLymxp_i76N0MU4vxfmQBmlm.KvNY4yKmrG7x8Oq 3ZKRDcIzR5tiNJD9_YhlUgMgJl0VHHBYyXpGU4eR7gSKaqwIofv.Bhj.jSbP kcNNovQW_EERqXpRXyKd_FFOIT2p7gi29o4lyKAMJvmdrBEo0Zt9pXNFInVi mTGsD5jqLHj0zecABboHy5ANS.fAKk2xsDLkTlLoVsTqVLjB_kwzZpc_KRVF nPdvNdqVM9HePLZgLQwQVxl57PttX5q_lIcmNgwrxCB2VpSRmwgenxFd5wQf Fx9at5yk0A3Cmzj7J.KSHcsPY9KsaZIk9lNxXDkbBXaxWJbMfUX986z5Efzy bJcQ- Received: from [69.63.86.30] by web161211.mail.bf1.yahoo.com via HTTP; Sun, 18 Sep 2011 18:01:23 PDT X-Mailer: YahooMailWebService/0.8.114.317681 References: <1D890018DC214F53ADBADD22179C05F8@andy71b082867c> X-Original-Message-ID: <1316394083.24393.YahooMailNeo@web161211.mail.bf1.yahoo.com> X-Original-Date: Sun, 18 Sep 2011 18:01:23 -0700 (PDT) From: Tony Moradian Reply-To: Tony Moradian Subject: Re: Left Main strut ear weld (Hydraulic Actuator) failure X-Original-To: Lancair Mailing List In-Reply-To: <1D890018DC214F53ADBADD22179C05F8@andy71b082867c> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-782980913-1385039541-1316394083=:24393" ---782980913-1385039541-1316394083=:24393 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable I will do a complete inspection of the landing gear system including the pr= essure settings.=A0 Andy Chioveta is going to assist me with figuring out w= hat went wrong here.=A0 But looking at the clean break and the fact that th= ere are no bends on the tabs, let me to believe that it is a weld failure.= =A0 I have a good friend of mine who is a metallurgist.=A0 He is going to l= ook at the weld as well.=0A=0A=0A=A0=0ATony Moradian=0ALegacy L2K330=0AN444= HL=0A=0A=0A________________________________=0AFrom: Andy Werback =0ATo: Tony Moradian =0ASent: Sunday,= September 18, 2011 8:03 AM=0ASubject: Re: Left Main strut ear weld (Hydrau= lic Actuator) failure=0A=0A=0A =0AHi Tony,=0A=A0=0AI asked Lancair about th= is (actually talking to =0AJustin), and his main concern was that you do no= t use excessive hydraulic =0Apressure on the UP limit pressure switch - the= 1150 lb is critical.=A0 I =0Aagree that this is a tough place for a weld a= nd that the material for the tabs =0Ais not exactly heavy duty -=A0 but I w= ould have thought that the tabs would =0Ahave torn rather than losing the w= eld.=A0 But main thing is recheck you =0Ahydraulic pressure - assuming the = gear retracts freely/easily with the check =0Avalve open and the gas strut = off - you want just enough pressure to get =0Aeverything unlocked and comin= g up.=A0 I also wonder if perhaps you could have =0Aa stuck/flakey UP limit= switch that didn't turn off properly.=A0 I put =0Apressure gauges on my up= and down lines specifically to see what the limit =0Aswitches were doing.= =0A=A0=0AAndy=0A----- Original Message ----- =0A>From: Tony Moradian =0A>To= : lml@lancaironline.net =0A>Sent: Saturday, September 17, 2011 1:32 PM=0A>= Subject: Left Main strut ear weld (Hydraulic Actuator) failure=0A>=0A>=0A>= On my last flight after i put the gear up, the left main indicator light w= as still on.=A0 The tower confirmed that the left main was still down.=A0 = I orbited overhead and put the gear handle down.=A0 Three greens.=A0 Confi= rmed by the tower that all three were down.=A0 Set up for a landing with t= he thought in mind that the gear may collapse upon touch down, not knowing= nor being able to confirm the reason for this malfuntion.=A0 I had had se= veral other failures on this and preceding this flight that were mostly el= ectrical in nature that i have been battling with since 30 hours on the pl= ane.=A0 (Main Bus failure, ahrs, overvoltage etc.)=A0 Ended up making an u= neventful landing.=A0 After further inspections what you see in the pictur= es is what i found.=A0 To my knowledge, i don't know of any other Legacies= that have had this failure.=A0 Please let me know if you know otherwise.= =A0 This looks like a bad weld to me!!!=A0 All of the forces on this=A0 we= ld are parallel to the way it sheared off the strut.=A0 Unbelievable!!!!=A0 Chec= k the actuator connection to main strut ear on your Legacies.=0A>=0A>=A0= =0A>Tony Moradian=0A>Legacy =0AL2K330=0A>N444HL ---782980913-1385039541-1316394083=:24393 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
I will do a complete = inspection of the landing gear system including the pressure settings. = ; Andy Chioveta is going to assist me with figuring out what went wrong her= e.  But looking at the clean break and the fact that there are no bend= s on the tabs, let me to believe that it is a weld failure.  I have a = good friend of mine who is a metallurgist.  He is going to look at the= weld as well.


 
Tony Moradian
Legacy L2K330
N444HL
<= /div>
From: Andy Werback <andyw54_punt@earthlink.net>
Sent: Sunday, September 18, 2011 8:03 AM=
Subject: Re: Left Main= strut ear weld (Hydraulic Actuator) failure

=0A=0A =0A =0A=0A
Hi Tony,
=0A
&nbs= p;
=0A
I asked Lancair about this = (actually talking to =0AJustin), and his main concern was that you do not u= se excessive hydraulic =0Apressure on the UP limit pressure switch - the 11= 50 lb is critical.  I =0Aagree that this is a tough place for a weld a= nd that the material for the tabs =0Ais not exactly heavy duty -  but = I would have thought that the tabs would =0Ahave torn rather than losing th= e weld.  But main thing is recheck you =0Ahydraulic pressure - assumin= g the gear retracts freely/easily with the check =0Avalve open and the gas = strut off - you want just enough pressure to get =0Aeverything unlocked and= coming up.  I also wonder if perhaps you could have =0Aa stuck/flakey= UP limit switch that didn't turn off properly.  I put =0Apressure gau= ges on my up and down lines specifically to see what the limit =0Aswitches = were doing.
=0A
&nbs= p;
=0A
Andy
=0A=0A
----- Original Message -----
=0A
From: =0A Tony Moradian =0A
=0A =0A
Sent: Saturday, September 17, 2011 1:32 =0A PM
= =0A
Subject: Left Main strut ear w= eld =0A (Hydraulic Actuator) failure
=0A

=0A
=0A
On my last flight after i put the gear up, =0A the left m= ain indicator light was still on.  The tower confirmed that the =0A l= eft main was still down.  I orbited overhead and put the gear handle = =0A down.  Three greens.  Confirmed by the tower that all three = were =0A down.  Set up for a landing with the thought in mind that th= e gear may =0A collapse upon touch down, not knowing nor being able to con= firm the reason for =0A this malfuntion.  I had had several other fai= lures on this and preceding =0A this flight that were mostly electrical in= nature that i have been battling =0A with since 30 hours on the plane.&nb= sp; (Main Bus failure, ahrs, overvoltage =0A etc.)  Ended up making a= n uneventful landing.  After further =0A inspections what you see in = the pictures is what i found.  To my =0A knowledge, i don't know of a= ny other Legacies that have had this =0A failure.  Please let me know= if you know otherwise.  This looks like =0A a bad weld to me!!! = ; All of the forces on this  weld are parallel to =0A the way it shea= red off the strut.  Unbelievable!!!!  Check the =0A actuator con= nection to main strut ear on your Legacies.
=0A
 
=0A
Tony Moradian
Le= gacy =0AL2K330
N444HL


=
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