Attached are a few pictures of an S-tec pressure transducer. At issue is the tube extending from the transducer. Should it be attached to the static line or not? In diagnosing an issue with the HSI I got under the panel only to find that a static line near to the pressure transducer is capped off with a temporary fitting. I'm thinking this occured as a result of a pitot static IFR cert. last year. It would seem that it never was replaced and I have been using inside cabin pressure to set the altitude on my S-tec 30. But as I am not sure that the static line should be attached to this transducer I thought I'd ask if anyone knows the answer? Separately I have an S-tec St-180 HSI compass system. The compass system part is not working. I need a St-6444 or St-6444-01 remote gyro. Does anyone have one that they have removed for upgrade. Thanks.