Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
ATC Equipment / Nav Facility / Buildings; Environment - Non Weather Related
Received GPS jamming; indicated by ADS-B OUT L; TERR POS; NAV UNABLE RNP". Jamming started at XA:25Z N4850 E4304. Ended XA:54Z N5241 E 3919. In southern Moscow airspace skirting Ukraine just south of us. [Caused by] jamming of satellite signals by unknown entity."
Pilot reported GPS jamming in southern Moscow airspace skirting Ukraine.