Checkboard mentioned
most of the four engine failures I am aware of have been environmental (Meekatharra BAe 146 rollback,
Report:
http://www.atsb.gov.au/publications/...200286_001.pdf
Hmmm.
Perhaps too pedantic for some however here goes.
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.
All the main recommendations are with respect to changes in operating procedures and indeed verification of Airworthiness Certification.
1. The Civil Aviation Authority minimise the risk of engine roll-back on BAe 146 Aircraft by ensuring that the aircraft can be operated throughout the certificated operational flight envelope, under all environmental conditions, with an adequate margin of safety above the threshold at which engine roll-back may occur.
No mention at all is made to the future avoidance of these particular environmental conditions.
Mostly a design and/or operations manual and/or certification failure it seems to me.