Originally Posted by
lomapaseo
What is more likely to happen is that a fog of small debris makes it into another engine's inlet and results in FOD . The latter is cause for concern to the crew (abnormal indications) but only rarely completely causes failure of another engine (albeit the crew may shut it down)
Quite so. That would be a potential failure scenario on a larger 4-engined aircraft (747, for example) where the engines are sufficiently staggered by virtue of the wingspan so that bits ejected tangentially by an inner engine are upstream of the outer engine's intake.
It's an unlikely scenario for the 146/RJ where the engines are much closer together.
interpret the historical reports carefully.
Indeed. For example in the Aviacsa event, Number 4 let go and bits hit the Number 3 pylon, not the engine, but severed the engine controls which resulted in it running down. The engine itself wasn't damaged, in fact it was later moved to the undamaged No 4 pylon for the 3-engined ferry from Mexico to the US.