Air carrier captain reported GPS position unavailable and ads-B out left. Possible GPS jamming.

Attributes
ACN	1692552
Time
Date	201910
Local Time Of Day	1801-2400
Place
Locale Reference	LTAA.ARTCC
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Navigational Equipment and Processing
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown

Narrative:

GPS jamming: GPS position unavailable and ads-B out left. Cause: GPS jamming.

Original NASA ASRS Text

Title: Air Carrier Captain reported GPS position unavailable and ADS-B OUT L. Possible GPS jamming.

Narrative: GPS jamming: GPS position unavailable and ADS-B OUT L. Cause: GPS jamming.

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.