Everything was normal, flying steady in GPS mode. During hovering, suddenly the Vision started to drift backwards and would not hold altitude. Warning lights started to flash yellow without me touching anything. Tried all routine things to no avail. Tried calibration, but it would not go into calibration mode.
When I got home, I hooked it up to the Assistant and found no readings from the compass. I had a spare compass leg. I swapped it and everything started working. Put back the old one and same problem. Hard to believe that the compass had a sudden failure, but that is what it turned out to be the issue. recalibrated with the replacement compass and everything is working fine.
Lesson learned. If you see something abnormal, land immediately. It will save your day. And... keep a spare compass. :mrgreen:
When I got home, I hooked it up to the Assistant and found no readings from the compass. I had a spare compass leg. I swapped it and everything started working. Put back the old one and same problem. Hard to believe that the compass had a sudden failure, but that is what it turned out to be the issue. recalibrated with the replacement compass and everything is working fine.
Lesson learned. If you see something abnormal, land immediately. It will save your day. And... keep a spare compass. :mrgreen:
