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I have a 2002 Vans RV-6 and recently both my steam gauge altimeter and the adjacent steam gauge vertical speed indicator quit working. The inside of the glass plate on the front of both of these gauges had some sort of moisture - it looked like really small particles of water. All of my other gauges are just fine. These instruments have been fine for years. Any idea what could be causing this???
STEC 50 autopilot
My altitude hold sometimes does not function. This is a rare event. Now working. I am reluctant to have an avionics shop troubleshoot a rare intermittent problem. I checked all electrical connections and the static lines to the pressure transducer. No leaks or obstruction (independent static system). Do I have a faulty pressure transducer? Very pricey to replace, especially since the altitude hold now works.