Was flying flt 699 BOS-DEN, on 7/11,
Ch 9 - was not on.
Plane taxied to the runway at BOS.
Got to take off spot. "Prepare for takeoff"
Started accelerating down runway.
Looked out portside window, was a plane landing on intersecting runway.
Pilot powered down.

Pilot calmly got on the intercom, announced that there was another plane landing across the runway we were taking off from. And that we would taxi around again.

We taxied around to a different runway to take off.

Spooky!

Anyone know if United or the FAA has to report this kind of stuff? and how often does this kind of stuff happen?