Phoenix, Arizona - PRELIM INFO FROM FAA OPS PHOENIX AZ UAS INCIDENT 1704P UNIVERSITY OF NORTH DAKOTA 540

PRELIM INFO FROM FAA OPS: PHOENIX, AZ/UAS INCIDENT/1704P/UNIVERSITY OF NORTH DAKOTA 540, CESSNA C172, REPORTED A BLUE UAS PASSED 100 FEET BELOW THEM 7 SE PHOENIX-MESA GATEWAY ARPT AT 3,300 FEET. NO EVASIVE ACTION REPORTED. UNKN IF LAW ENFORCEMENT NOTIFIED.