There are rumors that there were 2 pilots aboard, and that one of them accidentally triggered autoland, and they couldn't figure out how to turn it off:

https://vansairforce.net/threads/garmin-emergency-autoland-i...

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lsowen 2 hours ago | parent [-]

And also didn't know how to work thr radio? Surely autoland doesn't disable communication

	▲	ilikehurdles an hour ago \| parent [-]
		seems like an unlikely rumor to be true at this time