Small transport captain reported losing the GPS signal near midway airport.

Attributes
ACN	1648188
Time
Date	201905
Local Time Of Day	1201-1800
Place
Locale Reference	MDW.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	STAR PANGG THREE
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 75 Flight Crew Total 6300 Flight Crew Type 450
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types

Narrative:

GPS failure with the flight management system caused a deviation off of course.

Original NASA ASRS Text

Title: Small Transport Captain reported losing the GPS signal near Midway Airport.

Narrative: GPS failure with the Flight Management System caused a deviation off of course.

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.