Seattle, Washington - PRELIM INFO FROM FAA OPS SEATLLE WA UAS INCIDENT 1801P SEATTLE ATCT REPORTED DELTA 144

PRELIM INFO FROM FAA OPS: SEATLLE, WA /UAS INCIDENT/1801P/SEATTLE ATCT REPORTED DELTA 144, B764, ON DEPARTURE ROLL OBSERVED A UAS AT TREE TOP LEVEL SOUTH OF RWY. SEATTLE PD NOTIFIED AT 911.

MOR Alert for SEA Number: SEA-M-2015/07/04-0001 Type: Date/Time: Jul 4, 2015 - 0101Z A/C: DAL144 (B764)

Summary: DAL144 HEAVY WAS DEPARTING RWY 34R AND REPORTED A UAV SOUTH OF THE RUNWAY. HE SAID IT APPEARED TO BE ABOUT TREETOP LEVEL, AND POSSIBLY LANDING. LOCAL LAW ENFORCEMENT WAS ADVISED, BUT THE DISPATCHERS WERE UNSURE OF HOW TO RESPOND TO THE REPORT. NO OTHER INFORMATION WAS PROVIDED, AND SUBSEQUENT ARRIVALS/DEPARTURES DID NOT OBSERVE A UAV.