Are we even certain of the statement "as long as it is an aircraft instrument"? Volts, amps, and oil pressure are not changed when produced by an aircraft engine. Would this same reasoning then, allow us to install a Dynon or MGL glass cockpit if we wanted to?
--- In [email protected], Hartmut Beil <hb...@...> wrote: > > > Now, is there a ruling from the FAA that defines only TSO instruments in > certified aircraft? > No. We had that discussion already. > > The exceptions are transponders. These are all TSO. > > TSO'd parts are only required when defined by the manufacturer. > If you add another instrument, let's say a radar, you will have to get > approval for that also, TSO'd or not. > > Our Ercoupes were certified before TSO existed, so you can use whatever > instrument, as long as it is an aircraft instrument. > > > > Simple as that. > > > > It is a common misunderstanding of what TSO means and what it was made for > that leads to this misperception. > > > > It is a common myth that TSO means better quality. > > > > > > It does not. It means adherence to a standard. That s all. > > > > > > Hartmut > > > > > > > > > > > > > > To: [email protected] > From: ebengui...@... > Date: Wed, 13 Jan 2010 09:42:25 -0500 > Subject: [ercoupe-tech] Re; Instaling NON TSO'd instruments or avionics > > > > > > FACT: > Are TSO Instruments required in certificated aircraft? > Altimeter, airspeed, avionics, anything...... > . The problem is, if they're not TSO'd, on what basis are you installing > them? To be installed as an aircraft part, whatever you are installing > must be a standard part (not applicable to instruments - we're talking > hardware, wire, etc.), a TSO'd part, a TC'd/STC'd part, a PMA'd part, > or a part manufactured by the owner-operator. Otherwise it's not an > aircraft part, and will require a field approval. > But what if it's not? What if the manufacturer has no authorization > from the FAA of any kind? Not going to happen. Can't install it. Not > unless you get an STC or field approval. > That's it in a NUT SHELL > > > > _________________________________________________________________ > Windows Live: Friends get your Flickr, Yelp, and Digg updates when they > e-mail you. > http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_3:092010 >
