Air carrier captain reported a uas 1 mile south of ord runway 27L at 1;300 ft on a 2.5 mile final.

Attributes
ACN	1369662
Time
Date	201607
Local Time Of Day	0601-1200
Place
Locale Reference	ORD.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Flight Phase	Cruise
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict Airborne Conflict Deviation - Procedural FAR

Narrative:

Spotted drone approximately 2.5 mile final 27L at 1300 MSL about 1 mile south of course. Notified ATC and dispatch.

Original NASA ASRS Text

Title: Air carrier Captain reported a UAS 1 mile south of ORD Runway 27L at 1;300 ft on a 2.5 mile final.

Narrative: Spotted drone approximately 2.5 mile final 27L at 1300 MSL about 1 mile south of course. Notified ATC and dispatch.

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.