<< >> NASA ASRS Report 1568419, August 2018

B-777 flight crew reported passing over a drone by 1000 feet while at 4000 feet on the hyper 7 arrivial into iad.

Attributes
ACN	1568419
Time
Date	201808
Local Time Of Day	0601-1200
Place
Locale Reference	PCT.TRACON
State Reference	VA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	STAR HYPER7
Flight Plan	IFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Operating Under FAR Part	Other 107
Flight Phase	Cruise
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 94 Flight Crew Total 9656 Flight Crew Type 674
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 4516 Flight Crew Type 1553
Events
Anomaly	Conflict Airborne Conflict
Miss Distance	Vertical 1000

Narrative:

Hyper 7 RNAV (STAR) over yackk @ 4;000 ft. First officer stated as he was looking forward/down and something caught his attention. He stated 'as we passed over it; looking down at approximately 1;000 ft below us' it appeared to be a drone. This was reported to approach control. After landing runway 1R; iad tower requested a verbal description and the first officer described seeing the cross pattern of the drone from above; half mile north of yackk.

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Original NASA ASRS Text

Title: B-777 flight crew reported passing over a drone by 1000 feet while at 4000 feet on the HYPER 7 ARRIVIAL into IAD.

Narrative: Hyper 7 RNAV (STAR) over YACKK @ 4;000 ft. First Officer stated as he was looking forward/down and something caught his attention. He stated 'as we passed over it; looking down at approximately 1;000 ft below us' it appeared to be a drone. This was reported to Approach Control. After landing RWY 1R; IAD Tower requested a verbal description and the First Officer described seeing the cross pattern of the drone from above; half mile north of YACKK.

Data retrieved from NASA's ASRS site 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.