how much credence would/should an investigator place on the fact that the windspeed readout at touchdown was out of limits
I would think the investigator would look at the latest ATIS for weather and the VCR for wind info given by the tower.
I would think that landing on a limited runway,the pilots would pay special attention to the TW component if any and the PNF calling out the TW at 50 at the latest.
The PF must know the difference of landing distance between TW and AB setting,and any room for error must be briefed prior.
On a non limited runway,the tower reported winds is the deciding factor in continuing the landing or not along with other factors of stability criteria(sink rate,speed...)
How do pilot of airliners without Wind display decide to continue their landing or to go around?
Technology is great,use it,but dont over do it either.
Follow your SOP,fly on the safe side but also keep some common sense and commercial thinking.
Out of interest, next time out have a look at the windspeed readout on the landing roll. The IRS could not sense drift on the runway (hopefully...!), so it's out of date to a certain degree. I just wonder how much
Honestly,wind speed and direction is not on my scan during take off nor landing,during take off i use tower winds and wind sock,during landing tower winds and FMC read out from the PNF on request.
I dont think the wind speed and direction is displayed during take off roll,oddly I know it is on Airbus.I will have a look tomorrow and let you know.