Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.
Dear Oluf,
Please stop insisting in this thread that core icing played a role in the crash of G-YMMM.
The AAIB Special bulletin states:
At the point when the right engine began to lose thrust the data indicated that the right engine EEC responded correctly to a reduction in fuel flow to the right engine, followed by a similar response from the left EEC when fuel flow to the left engine diminished.
The crucial words are "reduction in fuel flow" and for both engines.
Also from the AAIB,
the fuel metering valves on both engines correctly moved to the fully open position to schedule an increase in fuel flow
- but fuel flow did not increase.
The fuel did not flow in sufficient quantities!
Therefore, and unless I've failed to understand how these fuel systems operate, core icing cannot have contributed to the cause of BA038's crash.
Core icing is an interesting subject, probably deserving a thread of its own, but please, PLEASE, stop distracting those of us who are interested in understanding G-YMMM's crash.
Regards, Tanimbar
PS. Apologies to those who have already made these points.