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    Fuel flow transducer

    Once you get it operating, very carefully log at each fillup how many gallons the system THINKS you need to fill to full, and how many you actually pump. After about a hundred gallons or so, do the math for the percentage increase/decrease and dial it in. A couple iterations of that and you'll...
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    ADAHRS Fail

    Don't feed the trolls.
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    Audible beep when accelerating

    Do you have the AOA (Angle Of Attack) system active? Does the beeping continue through the rotation and then fade as you fly off the runway after a few seconds?
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    Servos Offline

    Ouch! RTFM has now gone to "look at the pretty pictures" 😄😄
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    Servos Offline

    It can be like herding cats, keeping them all in line where they belong.
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    SkyView not retaining past destinations following shutdown

    Hmmm - internal memory battery failure? Is there one in the Skyview? I don't even know...
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    Stall warning horn

    I would suspect you have a bug or some kind of blockage in the second line sensing AOA, not the main pitot tube line. It would give exactly the symptoms you describe.
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    question for Dynon about autopilots moving forward

    Tell me about it. I'm still waiting for the promised auto-trim functionality on the 172R/S models for their STC'd autopilot install - 5 years after installation. The "after-the-sale" support is somewhat lacking.
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    Altitude Information for Navigation

    Yep, go back to standard TOD mental gymnastics. In my RV9A for instance I usually come down at 1000fpm, covering about 3 miles per minute, if I need to drop 9000' it will take 27 miles.
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    172M Panel Upgrade

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    Servos Offline

    For troubleshooting or fault-finding, I agree that more is always better - but reality is that we cannot instrument everything to the maximum degree possible in our aircraft. From an operations standpoint, I don't care if one or two (or three) of the autopilot servos have a problem in flight -...
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    172M Panel Upgrade

    You're going to enjoy this STC. One issue you should be prepared for is some fishtailing on the AP holding heading, there is a procedure available from Dynon for in-flight autopilot tuning and once we went through that a few times we had it pretty much knocked down.
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    Servos Offline

    Yup, welcome to the frustrating world of intermittent electrical faults. Hardest thing to diagnose/find.
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    SV-D1000 Data Connection Fault - Data 2 Pair (pins 4 and 8)

    Those two pieces of data point to a loose cable connection, as things warm up some pins stop making contact.
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    Servos Offline

    You have separate grounds for each servo, so that's not likely the problem - but both servos are fed from a common power supply, and both servos are going offline/online together - that's your smoking gun. You most likely have a power supply problem to them.
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    Nav Mode not available

    Were either of the screens (new or old) sold as a certified unit versus experimental?
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    Batt Contact Low Error?

    If you don't find an obvious short to ground somewhere, the possibility exists that it is a legitimate alarm from the battery. Attached here is the fault-list for ETX
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    Batt Contact Low Error?

    That indicator is "grounded" to indicate a fault - so if you have a point where the insulation is rubbed through and it is shorting to ground, it will look like an intermittent fault on the panel.
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    Batt Contact Low Error?

    Does the airplane have an EarthX battery in it? That battery has an internal fault indicator with an external wire that can go to the EMS to indicate a problem. That wire normally "floats" as an open wire, but when there is a battery fault the internal battery circuitry ties it to ground - also...
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    SV-D1000 Data Connection Fault - Data 2 Pair (pins 4 and 8)

    Was that a Dynon-produced cable or owner-built?
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