Originally Posted by
Undertow
They'd already said "Tower, we had an RA. Brickyard 4514 is going around" and that was acknowledged. They were then switched to Potomac who confirmed radar contact and asked reason for go around again. I would hope Potomac had seen/heard the "CA". But then after this everyone just carries on as if this is all perfectly normal until we all know what happened the very next day.
Potomac Approach is not in the same building (or at least room) as the Tower controller.
He’s asking the reason to find out what the a/c wants: sequence for another approach, divert due weather, hold to work out a technical fault.
Tower could have passed it on the hotline but it is probably normally more efficient to just have the a/c say.
Working about the safety implication of why the RA and what it says about the procedure is not something for the radio.