Tailwind
I had an interesting the other day, tailwind limit for landing is 10kts and the wind at destination was variable and all over the place.
RWY 16/34
Wind reported at 1000' was 340/20
ATIS broadcasting a average tailwind component of 6 kts at the 34 threshold.
At 500ft nice and stable with a 3 knot headwind according to the ND wind vector, passing 100' wind on ND was indicating 160/12kts, this coincided with a TWR report of Calm to 3 kts tail at threshold (confirmed with windsock). We were nice and stable so continued.
My question is, at what point do you go-around for a tailwind?
Does the ND vector override the TWR report and visual check?
I only ask as the FO queried this later on and I stated that my opinion had always been that as long as the wind at touchdown was good (as reported by the tower) and you were stable throughout the approach then you were entitled to carry out the landing even if the ND wind fluctuates over your limit. He wanted a reference for this and I couldn't find one either way. Would be interested to hear everyones opinions.
Obviously this is only really applicable in situations where you have the wind varying all over the place and there is not an 'obvious' runway to use.