A tower local control trainee reported an aircraft reported sighting a drone in the tower airspace.

Attributes
ACN	1744052
Time
Date	202005
Local Time Of Day	1201-1800
Place
Locale Reference	DPA.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Other VFR Traffic Pattern
Route In Use	None
Flight Plan	VFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Person 1
Function	Local Trainee
Qualification	Air Traffic Control Developmental
Events
Anomaly	Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Inflight Event / Encounter Other / Unknown

Narrative:

Aircraft X was on short final when they reported a possible uas at about 1000 feet; 200 to 300 feet over the train tracks on approach end of the runway. The pilot did not report proximity; but did not sound concerned and continued in the pattern. A P28A following was given an advisory about the reported uas; but could not confirm a sighting. Both aircraft were switched to a different runway to prevent them from overflying the area until police could investigate. Notify authorities immediately; especially when in close proximity to a critical phase of flight; such as approach or departure. From notification by the pilot until the controller in charge called was about 10 to 15 minutes due to trying to get a visual sighting of the uas.

Original NASA ASRS Text

Title: A Tower Local Control trainee reported an aircraft reported sighting a drone in the Tower airspace.

Narrative: Aircraft X was on short final when they reported a possible UAS at about 1000 feet; 200 to 300 feet over the train tracks on approach end of the runway. The pilot did not report proximity; but did not sound concerned and continued in the pattern. A P28A following was given an advisory about the reported UAS; but could not confirm a sighting. Both aircraft were switched to a different runway to prevent them from overflying the area until police could investigate. Notify authorities immediately; especially when in close proximity to a critical phase of flight; such as approach or departure. From notification by the pilot until the Controller in Charge called was about 10 to 15 minutes due to trying to get a visual sighting of the 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.