Narrative:

During radar vectors by sea approach to paine field runway 16R, I (aircraft X) had to take evasive action to avoid a midair with a departing B777 (aircraft Y). The B777 was cleared for takeoff by pae tower on runway 34L. Just prior to that, sea approach turned us to a heading of 160 degrees at 4000 ft MSL. The turn started at about 8 mi out. Upon reaching the heading, we were lined up with runway 16R with a clearance to expect a visual to runway 16R. The B777 was in sight and climbing straight for us. I (the captain) made a turn to the left about 20-30 degrees to avoid him and started a descent to keep the B777 in sight. I feel that the tower controller at pae and the approach controller had poor communication between the 2 of them. My vector to a heading of 160 degrees should have never took place.

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Original NASA ASRS Text

Title: ACR B727 PIC INITIATES EVASIVE MANEUVER TO AVOID B777 ON OPPOSITE DIRECTION CLBOUT FROM PAE WHEN BEING VECTORED FOR VISUAL APCH TO PAE BY SEA APCH CTL.

Narrative: DURING RADAR VECTORS BY SEA APCH TO PAINE FIELD RWY 16R, I (ACFT X) HAD TO TAKE EVASIVE ACTION TO AVOID A MIDAIR WITH A DEPARTING B777 (ACFT Y). THE B777 WAS CLRED FOR TKOF BY PAE TWR ON RWY 34L. JUST PRIOR TO THAT, SEA APCH TURNED US TO A HDG OF 160 DEGS AT 4000 FT MSL. THE TURN STARTED AT ABOUT 8 MI OUT. UPON REACHING THE HDG, WE WERE LINED UP WITH RWY 16R WITH A CLRNC TO EXPECT A VISUAL TO RWY 16R. THE B777 WAS IN SIGHT AND CLBING STRAIGHT FOR US. I (THE CAPT) MADE A TURN TO THE L ABOUT 20-30 DEGS TO AVOID HIM AND STARTED A DSCNT TO KEEP THE B777 IN SIGHT. I FEEL THAT THE TWR CTLR AT PAE AND THE APCH CTLR HAD POOR COM BTWN THE 2 OF THEM. MY VECTOR TO A HDG OF 160 DEGS SHOULD HAVE NEVER TOOK PLACE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.