In #1409 I thought the CVR and FDR had yet to be analysed, but I see from mickjoebill at #682 they had been, so in fact the comments from Deborah do appear to be 'definitive'.
I see from a previous post by NoD that the 777 bible says
Alpha Floor is a low speed protection (in normal law) which is purely an autothrust mode. When activated, it provides TOGA thrust. As the aircraft decelerates into the alpha protection range, the Alpha Floor is activated, even if the autothrust is disengaged. Activation is roughly proportional to the rate of deceleration.
Alpha Floor is inhibited:
* below 100 feet radio Altitude,
* if autothrust unserviceable,
* following double engine failure on an A340 (or one engine out on the twins),
* following certain system/auto flight failures,
* above Mach 0.53.
- no mention of 'FLCH with 0000 set'.
Memory of the 737 is fading, but why is there a suggestion that 777 min speed reversion (msr - which would have applied power when the IAS dropped below 1.3Vs) did not kick in above 100'RA? I cannot find the tabulated speeds quickly but I'm sure the speed 'disappeared' well above 100'RA. I can see absolutely no logic in disabling msr in FLCH and if it is so disabled, I would suggest a PDQ revision of this.................................