Originally Posted by
ATC Watcher
Another one is just severe ice accumulation slowly but surely pushing the aircraft down despite all de-icing devices on and full power . A good description of this is the famous book of E.K Gann " Island in the sky".
It's scary, very scary - in my younger days I declared two Maydays and one Pan as above in piston and turbo prop twins - full power, speed coming back and still with a ROD on. Turned over the sea - only solution is to get above 0C and even then it, at +1C/+2C, takes forever to come off.