Vertical Magnetic Compass Excessive Movements

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Vertical Magnetic Compass Excessive Movements

Postby rnealon1 » Tue Mar 09, 2021 6:39 pm

Just before my son's Private Pilot checkride the stall warning quit. Fortunately the examiner did not mind (wanted to make sure he was flying the aircraft, not the warning horn), and thanks to members the horn is working again.

Since we have started working on the Instrument rating, the mag compass, which has been rock solid, has started making excessive swings, 10-20 degrees, in more or less level flight. This is intermittent; I can't see anything obviously wrong, we are operating in pretty cold temperatures.

PAI-700 Vertical Card Magnetic Compass. Any ideas appreciated.

Thanks,

Bob
Bob Nealon

Southbury, CT
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