Voltage, EDM-700, trim switch follow-up

Frank Stutzman wrote:

Newps wrote:

Frank Stutzman wrote:


I could be wrong, but I don't think the JPI OAT probe is STCed as a
replacement for the factory-though-the-windshield probe.


That would be hillarious. A ****ty company to start with and then the
probe isn't a legal replacement. Reason #4650 to go with EI.


I've never read the EI STC so I could be wrong, but I wouldn't be surprised
if the same situation exists with EI.

There are a lot more hoops to jump through in order to STC something as a
replacement (as opposed to being supplimental) for something specified in
the aircrafts type certificate. For something as trivial as an OAT probe,
I could understand a manufacturer not bothering.


I had the EI US8A engine monitor in my 182 and used one of the unused
channels as the OAT, got rid of the juice can OAT. Check the TCDS,
there may be no requirements for an OAT to begin with.

Newps wrote:

I had the EI US8A engine monitor in my 182 and used one of the unused
channels as the OAT, got rid of the juice can OAT. Check the TCDS,
there may be no requirements for an OAT to begin with.

Certainly true. As one aviation sage (that I think we both know) is fond
of saying: "It depends!"

--
Frank Stutzman
Bonanza N494B "Hula Girl"
Boise, ID