I answered the Mayday,Mayday,Mayday call from the Cessna Skymaster along with KLM flight 11. He said the front engine had failed and the rear engine was reading low oil pressure. Position was about 130 south of CYFB. He said aircraft descending unable maintain altitude. A very short time later he said rear engine had failed requested search and rescue. Our aircraft lost radio contact because of range but a BA aircraft was able to receive a position report. All information was passed on to Nav Canada ATC. I am very happy to read they are safe and sound. Keep one radio on 121.5. One never knows who will need help.
That reported loss of oil pressure on at least one engine raises suspicion about the crankcase breather tube becoming iced up and forcing oil out of the engine.