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Looking for a field approved King KY76C transponder install

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  • Looking for a field approved King KY76C transponder install

    The ATL FSDO is wanting me to find a field approval already signed off, does anyone here have anything like that?, thanks for any help, gary

  • #2
    Gary,

    If you followed 43-210A as a guideline would you conclude that it was a major alteration?

    I attempted to hire a DER to give me approved data for a similar install and he turned me away because it does not meet the guidelines for a major alt.

    I was advised as follows;

    "Look at AC43-210A figure 3-1. And answer the questions;
    Alteration
    Is it major change per 21.93 - no
    Listed in specs- no
    Appreciable affect on
    Weight- no
    Balance - no
    Strength - no
    Performance - no
    Power plant operation - no
    Flight characteristics - no
    Other qualities affecting airworthiness - no
    Accepted practices or elementary operations -yes
    Repair/alteration - alteration

    Consider as minor repair or minor alteration!"

    Food for thought.

    Dave

    p.s. I know that this is not the first time we have seen a conflict between what a FSDO says and what an Advisory Circular says or for that matter between what a FSDO says and and FAR says. FSDO guys are not perfect, but they are the FSDO. Of course a legal opinion can resolve it.
    Last edited by drude; 05-08-2019, 20:41. Reason: added post script

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    • #3
      Thank you Dave, Yes, it looks like it's going to be a bit tough, I talked to a small Avionics shop and he turned me away, said it wold take many, many hours of talking back and forth with the FAA and he would have to charge me shop time for all the time he spent on the phone, and he wants my plane in his shop, but the engine is out, ready for the C-90, but I want to get all this transponder and electrical system taken care of and weigh it before flight. I've got the install manual for the 76C and it does a very good job of explaining all about mounting and lots and lots of stuff, will look in 43.13 tomorrow and see if there's anything in there to help, and I mentioned battery to the FSDO and he said even though the plane was a CAR 3 aircraft, now the battery install must meet Part 23, so that rules out the lite weight stuff for me. I'll keep you posted on this and maybe try your list from 43-210A and see what happens. It really makes me sad to think of all the years this plane has flown and now I need to stack up all this weight - called it $$$$, the grass strip I keep it at is about 3 miles inside the Class B vale around ATL, so it's the FAA that is mandating I must have all this stuff, it would be nice it they'd make it easier, gary

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      • #4
        I hired a DER to get my battery installation done.

        He set up a test scheme that I had to perform and gave me 8110-3 form (approved data from DER, not field approval) and I was on my way! :-)

        I have an 11 lbs. Odyssey battery that has 14 amp hours of capacity for the starter and ADS-b out but have no generator/alt.

        Hiring the DER made the battery install and some other things so easy.

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        • #5
          To show you how the FSDO works, I got an approval from Terry B. to install aluminum sheet over the wing tanks, put the approval with a 337 and sent it to OK, about a year later I was at the FSDO and the PMI asked me what my N # is, he comes back in just a few minutes and asks if I have signed my T craft off, which I haven't, he says that's go cause if you had, I would have violated you, I said that was approved data, he says, No the data only was approved you have no approval to install it, it omes to me, I sign Block 3 and only then an you sign off. (Hey, it's approved data, what have we heard at IA seminars for how long??, but I was in the FSDO office and I've leaned long ago, when I open my mouth, it's only going to get worst, so I did what did said and that part is over, I say that to say, I am not sure the DER data will work for me, maybe if I get it from the DER and sent it to the PMI. would you mind letting me know the DER contact?, thanks for your help, gary

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          • #6
            Originally posted by LostnSpace View Post
            To show you how the FSDO works, I got an approval from Terry B. to install aluminum sheet over the wing tanks, put the approval with a 337 and sent it to OK, about a year later I was at the FSDO and the PMI asked me what my N # is, he comes back in just a few minutes and asks if I have signed my T craft off, which I haven't, he says that's go cause if you had, I would have violated you, I said that was approved data, he says, No the data only was approved you have no approval to install it, it omes to me, I sign Block 3 and only then an you sign off. (Hey, it's approved data, what have we heard at IA seminars for how long??, but I was in the FSDO office and I've leaned long ago, when I open my mouth, it's only going to get worst, so I did what did said and that part is over, I say that to say, I am not sure the DER data will work for me, maybe if I get it from the DER and sent it to the PMI. would you mind letting me know the DER contact?, thanks for your help, gary
            What was he going to violate you with? Approved data is an STC, does that mean if you install an STC you need to get their approval?
            N29787
            '41 BC12-65

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            • #7
              Originally posted by LostnSpace View Post
              Thank you Dave, Yes, it looks like it's going to be a bit tough, I talked to a small Avionics shop and he turned me away, said it wold take many, many hours of talking back and forth with the FAA and he would have to charge me shop time for all the time he spent on the phone, and he wants my plane in his shop, but the engine is out, ready for the C-90, but I want to get all this transponder and electrical system taken care of and weigh it before flight. I've got the install manual for the 76C and it does a very good job of explaining all about mounting and lots and lots of stuff, will look in 43.13 tomorrow and see if there's anything in there to help, and I mentioned battery to the FSDO and he said even though the plane was a CAR 3 aircraft, now the battery install must meet Part 23, so that rules out the lite weight stuff for me. I'll keep you posted on this and maybe try your list from 43-210A and see what happens. It really makes me sad to think of all the years this plane has flown and now I need to stack up all this weight - called it $$$$, the grass strip I keep it at is about 3 miles inside the Class B vale around ATL, so it's the FAA that is mandating I must have all this stuff, it would be nice it they'd make it easier, gary
              That is not true, you only need to meet car requirements, ask him for the regulation that says it needs to meet far part 23 requirements in writing and ask for it in writing...the faa is supposed to be making this shit easier, not harder.
              N29787
              '41 BC12-65

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