Originally Posted by
PoppaJo
I am sure our Boeing rated friends could advise us on why no engine warnings at all appeared? Strange.
It would have set numerous FADEC maintenance faults and the "L/R ENG CONTROL" EICAS messages. However the ENG CONTROL messages are inhibited above 80 knots, so the crew would not have seen them until they landed, and we don't expect the flight crew to check CMC faults (I don't think there is anything that would prevent it, but unlikely there would be any reason for them to look).
Engine operation may have been a bit 'abnormal' - not up to speed on the Trent 1000 Air Data Logic, but the general rule is if both engine sensors agree but disagree with aircraft, the system defaults to the engine sensors to protect engine-to-engine isolation. Of course when engine sensed Pamb became greater than the P total, it likely would have faulted everything and gone to some default failsafe value.