Return-Path: Received: from hotmail.com ([64.4.18.41]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-70783U4500L450S0V35) with ESMTP id com for ; Wed, 7 Mar 2001 20:15:25 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 7 Mar 2001 17:24:23 -0800 Reply-To: "Ron Laughlin" Reply-To: lancair.list@olsusa.com From: "Ron Laughlin" To: Subject: 337 forms Date: Wed, 7 Mar 2001 19:25:00 -0600 Message-ID: X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I know someone on this list can answer this question for me. I'm new to the experimental side of aviation and don't know much about what the FAA requires of us. After the airworthiness cert. has been issued for an experimental aircraft, can major modifications be made to the airframe and / or engine without filing a 337? For example, recently someone spotted an experimental aircraft with a torpedo looking snow ski carrier bolted to the belly. They stated that the 337 form was displayed right on the side of the ski carrier for everyone to see. From a FAR standpoint, is the 337 form and / or FAA approval required? Thanks in advance for your help. Ron Laughlin Legacy #37 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>