Helicopter pilot reported a near midair collision with a quadcopter drone at approximately 650 feet ...

Attributes
ACN	1549645
Time
Date	201806
Local Time Of Day	1201-1800
Place
Locale Reference	HIO.Airport
State Reference	OR
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Helicopter
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Flight Phase	Cruise
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument
Experience	Flight Crew Last 90 Days 131 Flight Crew Total 2219 Flight Crew Type 255
Events
Anomaly	Conflict NMAC Inflight Event / Encounter Other / Unknown
Miss Distance	Horizontal 100 Vertical 50

Narrative:

After being cleared into class delta airspace for landing at hio; and instructed to descend below 700 feet MSL; I had a near miss with a drone over highway 26; 4nm ene of hio. I was at approximately 650 feet MSL and the drone was above me; just to the right of my 12 o'clock. I turned left upon seeing it and got a good look at it. It appeared to be grey in color and possibly of the dji phantom type of quadcopter. I have seen plenty of these and it looked to be that style. I immediately reported to the tower that I had a near miss at the edge of their airspace and gave them approximate location; altitude; and description of the uav. I was traveling approximately 120 KTS IAS; with light winds and good visibility other than light smoke in the area from prescribed burns. I had two passengers on board; one in the front with me and one directly behind that passenger.

Original NASA ASRS Text

Title: Helicopter pilot reported a NMAC with a quadcopter drone at approximately 650 feet MSL while inbound for landing.

Narrative: After being cleared into Class Delta airspace for landing at HIO; and instructed to descend below 700 feet MSL; I had a near miss with a drone over highway 26; 4nm ENE of HIO. I was at approximately 650 feet MSL and the drone was above me; just to the right of my 12 o'clock. I turned left upon seeing it and got a good look at it. It appeared to be grey in color and possibly of the DJI Phantom type of quadcopter. I have seen plenty of these and it looked to be that style. I immediately reported to the Tower that I had a near miss at the edge of their airspace and gave them approximate location; altitude; and description of the UAV. I was traveling approximately 120 KTS IAS; with light winds and good visibility other than light smoke in the area from prescribed burns. I had two passengers on board; one in the front with me and one directly behind that passenger.

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.

Helicopter pilot reported a near midair collision with a quadcopter drone at approximately 650 feet MSL while inbound for landing.