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>> To: "Lancair Mailing List" <lml@lancaironline.net>
> Subject: [LML] Re: airframe / elevator vibration
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> Replaced the left outboard elevator hinge at 500 hrs( it had some play) and a low pitched hum went away. I think it had something to do with air flowing over the flap, cause it would seem to come and go with different flap settings from "in trail" to total reflex of an inch and a quarter or so..  Of course, it could have been the flap vibrating, but the hinge was easy and  was done first,end of hum ... Don Skeele  A&P