On Tue, Jan 25, 2011 at 4:46 PM, Michael Newman <mnewman@dragonnorth.com> wrote:

The two attached images show a crack in the engine mount on my Lancair IV-P. #4637 shows context and #4641 details. The opposite side cracked in a similar fashion two years ago. (I have not had nose wheel shimmy.)

 

Larger images available at:

 

http://www.dragonnorth.com/pictures/dataaccess/photo.php?PhotoID=11194

http://www.dragonnorth.com/pictures/dataaccess/photo.php?PhotoID=11197

http://www.dragonnorth.com/pictures/dataaccess/photo.php?PhotoID=11198

I would like advice on appropriate repair. My mechanic is suggesting some form of gusset which could improve the overall strength and prevent a future occurrence.

I wonder if this might not be asking for trouble. Without doing some serious engineering you could create point loads that might be worse.

 

Rather than remove the mount I would like to fly the plane to a highly skilled welder to make this repair. Any references for someone in the Northeast.

Other comments anyone?

 

 

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Michael Newman	Dragonnorth Group
401 Sandy Valley Road Westwood, MA 02090	Cell: 617 821-4608 Home: 617 566-7975 Fax: 617 566-7975
www.dragonnorth.com	mnewman@dragonnorth.com

 

 

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