Air carrier captain reported possible GPS jamming.

Attributes
ACN	1727419
Time
Date	202002
Place
Locale Reference	LCCC.ARTCC
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	GPS & Other Satellite Navigation
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 131 Flight Crew Total 11909 Flight Crew Type 6007
Events
Anomaly	ATC Issue All Types Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown

Narrative:

Just as we reached our initial cruise altitude at FL300 we experienced approximately 5 minutes of GPS interference. We were west of tlv and south of cyprus at position N33 E033.

Original NASA ASRS Text

Title: Air carrier Captain reported possible GPS jamming.

Narrative: Just as we reached our initial cruise altitude at FL300 we experienced approximately 5 minutes of GPS interference. We were west of TLV and south of Cyprus at position N33 E033.

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.