AirRabbit, #510, you perhaps unintentionally imply that the crew ‘deliberately’ overflew the first 4000ft. Deliberation would suggest awareness of the situation which might not have been the case.
Consider how a normal flare and landing is judged with respect to distance. This is probably by a sense of time - threshold to touchdown, time during the flare, particularly where ground markings are poor / night-time.
Distance, depends on ground speed, thus any tailwind might double the speed/distance difference for a given time, therefore for the perception of ‘normal timing’, the aircraft could have flown much further.
Add to this distance an increment due to a high approach – poor vis in heavy rain, poor lighting, and a tailwind.
Also, I wonder what effect a HUD flare profile has (see WhatsaLizad # 511). The difference between a manual landing and an auto land could be a 1400ft increase according to advisory landing data. If the HUD flare follows a similar profile as an autoland then a longer landing may result.
Thus, it is most likely that a long touchdown would result in these circumstances. In this case, safety would depend on correctly identifying the situation, knowledge of the risks in the situation, considering the aspects of a HUD guided flare and particularly tailwind, and then acting accordingly.
I suggest that this accident had its roots much earlier in the event than during the flare. Even in company SOPs if the HUD flare / tailwind were major contributors.
PJ2 – IIRC Airbus only deals with contamination via type (description), depth, and extent; Boeing relates to braking action.
CRFI is only used in Canada, and attempts to use it more widely as IRFI were not accepted – similar limitations as other friction methods due to poor correlation with the measuring devices, although within its limits (dry contaminants) CRFI appears to be better.
IMHO the success of CRFI (in Canada) stems from it triggering pilots to think about the distance increases – it helps identify (quantify) the risks and the distance margins to add.