Originally Posted by DJ77
“I heard that some RR engines have stall detection and that when a stall condition is sensed the FADEC runs the engine at idle until shutdown. The Airbus telex says that both engines displayed stall messages on ECAM.
Is there something to prevent both engines stuck at idle as a result of dual stall detection?(...)”
There should be. The F-86F, had it, called something like Emergency Fuel Control Unit, sort of an almost direct fuel tap. It worked fine, unless you jerked the throttle lever.
A FADEC emergency manual override might (ATT: might) have prevented a few events, like the B777 in London, the A320 in NY City, this one in HK, Eurofighter (?) in Spain, at least, according to their stories.
A Flight Law emergency manual override welcome in Airbuses as well. Humans could select direct law; or, the computers could select the law they liked, when allowed to do so by humans – I’ve read the B777 has push button for that.