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At 11:25 AM 6/30/2006, [EMAIL PROTECTED] wrote:
an engine upgrade does not require a 337 (I am glad it doesn't), but
installing shoulder harnesses, strobes, and a 20 amp generator do...
I guess I am still too new to aviation to understand how FAA regulations work.
Not trying to defend the FAA, but, this one's not that hard to understand.
Continental has published procedures for changing from a C75 to a
C85. No major components are involved, hence it qualifies as a minor
modification.
Erco never published anything addressing shoulder harness and it
involves potentially structural modifications to the airframe, hence
it is a major modification. Similar logic is applied to the electrical system.
My experience is that many 337's are filed that are not required. On
the other hand, many modifications that require 337's don't get them...
Major repairs and major modifications are defined in Part 43,
appendix A. Anything that is not a major repair or modification is
by definition a minor one.
John Cooper, A&P
Skyport Services
PO Box 249
4996 Delaware Tnpk
Rensselaerville, NY 12147
518 797-3064
Fax 518 797-3865
www.skyportservices.net
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