JimJim:
Ba146 rollback
I have just read the report (thanks for the links) and I disagree that the cause was environmental. Certainly under different environmental conditions the incident would not have occurred however the conclusions seem to be that the environmental conditions encountered were normal conditions that the aircraft should have been capable of operating in.
The problem with the 146 is (was) both environmental and technical, in my opinion.
I had a similar 4-engine rollback in the 146, and it seemed to be coincident with engine ant-ice selection at cruise altitude. On turning off all the ant-ice, all 4 came back again.
The problem was compounded by the thrust management system, which tries to equalise all 4 engines.