What do you do?

[mick]

Originally posted by MisterV
...Batter hits a deep line drive that is hooking towards the line. The ball clears the fence and, from our vantage point, looks clearly fair. It was close, but it looked fair. The third base umpire raised his hands and pointed foul.

MisterV,
Do you recall the positions of the umpires with R1 on 3rd before the play and at the call?
Was that a three-man crew? 4-man crew?
Did 3rd base umpire run out to get a look?
Thanks.
mick