Subject: Re: Potomac crash - VAS Aviation
Why wasn't it "PAT25 turn left heading 090 immediately" not "Pass behind the CRJ"?

There are a ton of restrictions on flight paths around DC. Its quite possible that turns would not be allowed in that particular area. Turns to the helo's right would put it over the airport. Not a good spot, with lots of potential for conflict with other planes moving around. Turns to the left take it over Joint Base Anacostia and point it toward a hill that is higher than its current altitude. Not many good choices.

From my recollection, the controller told the helo the altitude of the plane to avoid, but didn't give them a direction. I've heard controllers say to look at your 1 o'clock for the target. (Just an example, but might be close to where the helo needed to be looking.) A directional indication might have helped make sure the helo pilots were looking in the right place for the conflicting traffic. Maybe.

--Peter