Well I guess we all have to be very patient in waiting for more models to be approved for the Skyview system.
I know the gov. shut down put things on hold but Dynon is probably learning some hard lessons right know about how things go with getting approvals from the feds.

I believe they are working on Bonanza model approvals now and plan to get 182s approved after that. They had predicted 1st Qtr of 2019 for 182 approval and that is way out the window so now who knows.

I am planning to put the entire HDX system in my 1957 182 as soon as the model is added to the AML.

If you are planning to do the same be sure to get on their list online and call them to let them know as the more they hear from Cessna people the more likely they are to focus on them for approval.

I have the Skyview system in my RV7A and have been quite happy with it. Getting it into a good old 182 will be a real treat and for so much less money than equivalent Garmin or Avidyne equipment it is not even comparable. It is exciting to think about having all those capabilities of engine monitoring, auto pilot, backup power and backup instrumentation via the D10A etc. etc, and for what I think will be less than $30K.

This spells it out pretty clearly.

http://www.valavionics.com/installation-in-type-certificated-aircraft.html


If you're willing to do some digging through the manufacturer's data, most changes of "appliances" can be considered a minor alteration. I would certainly have no qualms changing something as simple as an ASI to a decent quality non-TSO'd article.

To throw my 2cents into this:

FAR 4-1378. 4-1378 GENERAL. Requirements for aircraft system and equipment are listed in Title 14 of the Code of Federal Regulations (14 CFR) Subchapters F and G. The rules for aircraft and operators conducting operations under 14 CFR parts 91, 125, and 129, state that specified required systems or equipment must be Federal Aviation Administration (FAA)-approved to meet applicable standards. The rules for aircraft and operators conducting operations under 14 CFR parts 121 and 135 state that all required instruments and equipment must be approved to meet applicable standards.

It says required equipment. If you're installing something in addition to that, it would imply that you do not need "approved" instruments or equipment. Pretty simple.


Next point: 337s. This drives me nuts. Most A&Ps/IAs don't seem to have a clue when this is applicable. Read it, people: MAJOR....

Follow the flow chart in AC 43-210. It can't be made any simpler. If it doesn't APPRECIABLY affect weight, balance, performance, flight characteristics, engine operation, structural strength or has some other detrimental effect - it's a MINOR alteration and doesn't need a 337. So many bullshit 337 get filed all the time, it makes me feel sorry for the FAA guys having to deal with them. Some ADS-B systems, for example, do not qualify as a Major alteration, yet manufacturers still tell you to file a 337. BS. Follow the chart. Same with installing an extra instrument, such as a CHT. Log book entry, done. Stewart gauge from NAPA, and I'll see the ambulance chaser in court, any time anywhere! We have rules and we're obliged to play by them but don't let them make up new ones. And don't invent new ones yourself. If some FSDO gives you grief about something, like wanting a 337 for something minor, show them AC 43-210 and let them prove that your cup holder has an appreciable effect on the airplane.


End of rant.

Awesome rant.. that was the equivalent of a mike drop for this thread. Just want to say thanks... someone installed a westach cylinder head gauge in an ancient 150.. I used that logic to justify leaving it alone to the ia... he let it go.
Thanks guys

Aerco wrote:To throw my 2cents into this:

FAR 4-1378. 4-1378 GENERAL. Requirements for aircraft system and equipment are listed in Title 14 of the Code of Federal Regulations (14 CFR) Subchapters F and G. The rules for aircraft and operators conducting operations under 14 CFR parts 91, 125, and 129, state that specified required systems or equipment must be Federal Aviation Administration (FAA)-approved to meet applicable standards. The rules for aircraft and operators conducting operations under 14 CFR parts 121 and 135 state that all required instruments and equipment must be approved to meet applicable standards.

It says required equipment. If you're installing something in addition to that, it would imply that you do not need "approved" instruments or equipment. Pretty simple.


Next point: 337s. This drives me nuts. Most A&Ps/IAs don't seem to have a clue when this is applicable. Read it, people: MAJOR....

Follow the flow chart in AC 43-210. It can't be made any simpler. If it doesn't APPRECIABLY affect weight, balance, performance, flight characteristics, engine operation, structural strength or has some other detrimental effect - it's a MINOR alteration and doesn't need a 337. So many bullshit 337 get filed all the time, it makes me feel sorry for the FAA guys having to deal with them. Some ADS-B systems, for example, do not qualify as a Major alteration, yet manufacturers still tell you to file a 337. BS. Follow the chart. Same with installing an extra instrument, such as a CHT. Log book entry, done. Stewart gauge from NAPA, and I'll see the ambulance chaser in court, any time anywhere! We have rules and we're obliged to play by them but don't let them make up new ones. And don't invent new ones yourself. If some FSDO gives you grief about something, like wanting a 337 for something minor, show them AC 43-210 and let them prove that your cup holder has an appreciable effect on the airplane.


End of rant.

Thank you!! It always amazes me how many mechanics think a 337 is good CYA......