OK
Thanks Bernd. On finals, it would seem, if not already established, that increasing thrust caused Rollbacks. If so, Demonstrably the fix doesn't work. Parsing "How Much Thrust" is a fool's game. I have alluded to vibration and Acoustics on enhanced EPRs many times; this may dislodge deposits upstream the FOHE, sending them down to the Face. It also may dislodge ice accreted at the Face, further blocking Flow. That Idle may melt accreted Ice and Open the Line is wonderful, but How much is anyone willing to gamble? If it doesn't work, what then Glide Idle?
AF