American Airlines CRJ-700 collides with helicopter near Reagan National

UncleTrvlingJim said
It seems unlikely (along with the hiring freeze of air traffic controllers) or anything else. It does not appear that what caused this crash was a lack of coordination or communication of air traffic control or the airport in general. The plane and helo were correctly tracked, the helo was properly notified. It looks to be error on the helo pilot's part.

So, from a process review standpoint, the biggest failing is allowing training runs in front of a busy airport.

Definitely. I figured training runs would be clear of civilian traffic. I see helo traffic in that area all the time, but had no idea there would be training runs that cross civilian flight paths/approaching major airports.