whee wrote:That's what I read too right up till the last paragraph. That last paragraph tells me to just use a suction cup, sticky mount, or a clamp on strut mount. If I do that then part 43 doesn't apply, I can just stick it on and I'm good to go.

Another consideration, in the case of this type of equipment, is the applicability of the term
alteration. FAA Order 81 10.37E, defines an alteration as a modification of an aircraft from
one sound state to another sound state. The use of suction cups, or other temporary methods of
attachment (not including permanent mechanical attachments to the aircraft), would not be
considered a modification to the aircraft. These temporary attachments would not be subject to
the regulatory purview of 14 CFR part 43.

2
The use of these type attachments however are not supported by the FAA, and may (in the case
of an inflight detachment) lead to careless operations” as provided for in 14 CFR sections
9] , 13 and 9 | .. | .

soyAnarchisto wrote: I'd like to see a link to this letter on the FAA web site and not a random google docs upload so we can refer to it in the future.