Crj-900 captain reported a near midair collision with a uav on short final to lga runway 4.

Attributes
ACN	1469779
Time
Date	201708
Local Time Of Day	0601-1200
Place
Locale Reference	LGA.Airport
State Reference	NY
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
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 Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict NMAC

Narrative:

On short final; ILS runway 4; I saw what appeared to be a big black object fly past the aircraft. Upon asking the first officer what he saw; he described in great detail in what was an unmanned drone at about 500 ft AGL. As soon as we touched down; we informed ATC of the aircraft and incident.

Original NASA ASRS Text

Title: CRJ-900 Captain reported a NMAC with a UAV on short final to LGA Runway 4.

Narrative: On short final; ILS Runway 4; I saw what appeared to be a big black object fly past the aircraft. Upon asking the first officer what he saw; he described in great detail in what was an unmanned drone at about 500 ft AGL. As soon as we touched down; we informed ATC of the aircraft and incident.

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.