ATC controller reported a uav was reported by an aircraft in class a airspace.

Attributes
ACN	1766260
Time
Date	202010
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Other unknown
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	IFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Enroute Supervisor / CIC
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 11
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict
Miss Distance	Horizontal 0 Vertical 3000

Narrative:

I was working the controller in charge position in are a X when the controller on sector xy told me that aircraft X reported seeing a drone above him about 3;000 to 4;000 feet above him. Aircraft X was at FL240 orbiting over our wild fire tfr's. No further information was received about type. Since this drone could potentially been at FL280 the controller quick looked sector yy/zz to see if there were other aircraft in the area before calling the high altitude sector. He did notice a air carrier aircraft about FL340 about 20 miles north of aircraft X position but no other aircraft. No primary target was noticed and no adsb information noticed.I did advise the omic of the situation.aircraft X did not see the drone any other time while orbiting.I felt we did all we could do in reporting the possible uas.

Original NASA ASRS Text

Title: ATC Controller reported a UAV was reported by an aircraft in Class A airspace.

Narrative: I was working the CIC position in Are a X when the controller on Sector XY told me that Aircraft X reported seeing a drone above him about 3;000 to 4;000 feet above him. Aircraft X was at FL240 orbiting over our wild fire TFR'S. No further information was received about type. Since this drone could potentially been at FL280 the controller quick looked sector YY/ZZ to see if there were other aircraft in the area before calling the high altitude sector. He did notice a air carrier aircraft about FL340 about 20 miles north of Aircraft X position but no other aircraft. No primary target was noticed and no ADSB information noticed.I did advise the OMIC of the situation.Aircraft X did not see the drone any other time while orbiting.I felt we did all we could do in reporting the possible UAS.

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.