The FAA reported a drone sighting by a Boeing 757-200 near Livermore, California on 21 September 2015. Separation distance reported as 500 feet.
PRELIM INFO FROM FAA OPS: LIVERMORE, CA/UAS INCIDENT/1617P/NORCAL TRACON ADVISED UNITED 1192, B752, ORD – SFO, OBSERVED A QUADCOPTER UAS AT 12,500 FEET, 10 S LVK. NO EVASIVE ACTION TAKEN. UNKN IF LEOS NOTIFIED.
MOR Alert for NCT
Date/Time: Sep 21, 2015 – 2317Z
A/C: UAL1192 (B752)
Summary: UAL1192 WAS 10 NORTH EAST OF CEDES INTERSECTION ON THE DYAMD ARRIVAL DESCENDING OUT OF 13000 REPORTED A DRONE QUAD COPTER AT APPROXIMATELY 500 FT BELOW.
Aircraft: Boeing 757-200
Operator: United Air Lines
Aircraft altitude: 13000 ft
Separation: 500 feet
This information is based on an unmanned aircraft systems (UAS) sighting as reported to the US Federal Aviation Administration (FAA). A UAS can be a personal drone (e.g. a quadcopter), or a larger military drone.
Please note that separation distances are solely based on pilot’s judgements and not necessarily accurate since horizontal and vertical separation distances can be hard to judge.