Return-Path: Sender: (Marvin Kaye) To: lml Date: Fri, 27 Sep 2002 19:32:08 -0400 Message-ID: X-Original-Return-Path: Received: from [32.97.166.34] (HELO prserv.net) by logan.com (CommuniGate Pro SMTP 4.0b8) with ESMTP id 1792714 for lml@lancaironline.net; Fri, 27 Sep 2002 16:30:40 -0400 Received: from oemcomputer (slip-32-102-188-190.tx.us.prserv.net[32.102.188.190]) by prserv.net (out4) with SMTP id <2002092720303720406orc3ie>; Fri, 27 Sep 2002 20:30:38 +0000 From: "Larry Henney" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] A 360 failure worth noting X-Original-Date: Fri, 27 Sep 2002 15:31:42 -0500 X-Original-Message-ID: <000001c26664$e6214ce0$bebc6620@oemcomputer> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C2663A.FD4B44E0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C2663A.FD4B44E0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Dick, I had my GM-3 wiggle about 1/16" aft towards "falling off" after about 25 flight hours. My area washers were installed. It was the GM-3 that caused my failure. The symptom that brought this to my attention was the lack of a down and locked light on the offending gear. Yikes! The GM-3 had shifted aft which allowed the roll pin to miss the down switch. This occurred on my plane because the left and right GM-3's were reversed. Reversing these items precluded the shoulder from holding the GM-3 in place. the mono ball stayed attached while the GM-3 slid aft. Thus the area washer on my plane had minimal relevance towards holding the GM-3 in place. The headache with that mono ball bearing insertion was that it is not obvious which side of the GM-3 is shouldered. I would suggest that measuring front and back will allow positive identification of the shouldered side. Then the area washer can be placed on the appropriate side to hold the mono ball together should it ever start to shift out of the GM-3. Mine is set up with the area washer aft and the shoulder forward. This set up has the shoulder preventing aft movement of the GM-3 and the area washer preventing the mono ball from moving aft out of the GM-3. Indeed, this failure could cause a huge catastrophy if not properly assembled. If any LNC2 drivers are not absolutely positive that these parts are properly installed I would recommend inspection in short order. Larry Henney 360LH ------=_NextPart_000_0001_01C2663A.FD4B44E0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Message
Dick,
 
I had = my GM-3 wiggle=20 about 1/16" aft towards "falling off" after about 25 flight hours.  = My area=20 washers were installed.  It was the GM-3 that caused my = failure.  The=20 symptom that brought this to my attention was the lack of a down and = locked=20 light on the offending gear.  Yikes!   The GM-3 had=20 shifted aft which allowed the roll pin to miss the down = switch.  This=20 occurred on my plane because the left and right GM-3's were = reversed. =20 Reversing these items precluded the shoulder from holding the GM-3 in=20 place.  the mono ball stayed attached while the GM-3 slid = aft.  Thus=20 the area washer on my plane had minimal relevance towards holding=20 the GM-3 in place.
 
The = headache with=20 that mono ball bearing insertion was that it is not obvious which side = of the=20 GM-3 is shouldered.  I would suggest that measuring front and back = will=20 allow positive identification of the shouldered side.  Then the = area washer=20 can be placed on the appropriate side to hold the mono ball together = should it=20 ever start to shift out of the GM-3.  Mine is set up with the area = washer=20 aft and the shoulder forward.  This set up has the shoulder = preventing aft=20 movement of the GM-3 and the area washer preventing the mono ball from = moving=20 aft out of the GM-3.
 
Indeed, this failure=20 could cause a huge catastrophy if not properly assembled.  If = any LNC2=20 drivers are not absolutely positive that these parts are properly = installed I=20 would recommend inspection in short order.
 

Larry Henney
360LH

 
 
 
 
 
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