mocfly Posted September 1, 2011 Report Posted September 1, 2011 Any idea what would cause this? Looks like some sort of feedback from the beacon. I have never seen this before. IMG_0076.MOV
mocfly Posted September 1, 2011 Author Report Posted September 1, 2011 Never noticed before. All other instruments ok. No engine miss. Mag drop normal. Of course this happened on the flight down to get the annual done.
rookie Posted September 2, 2011 Report Posted September 2, 2011 I had a similar experience one time when I forgot the generator switch. About 20 min after take off I noticed a rhythmic drop on the tach, just as I see on your video. About the same time I also noticed a voltage drop and figured out where the problem was. Obviously your generator switch was in but I wonder if the problem might be associated with low voltage since it didn't show up for me until the voltage dropped. Anyway for what it worth dept. al meyer
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