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Join Date: Aug 1998
Location: Ex-pat Aussie in the UK
Posts: 2,679
I had an incident, capturing the glide slope from above while in open descent, where the altitude window switched to the default upper limit (50,000'). The aircraft pitched up to climb, but as the power was at idle for the previous descent the aircraft washed off about 30 knots within a few seconds...
Had it happened to me once too! Investigation after my incident report was inconclusive eventhough cabin crew testified that a pax was messing around with his cell-phone. The only conclusion the techies drew was " electronic transient " or something like that.