Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 113; Flight Crew Total 17118; Flight Crew Type 5588
Troubleshooting; Situational Awareness; Human-Machine Interface; Confusion; Workload
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types
Aircraft Equipment Problem Dissipated; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Requested ATC Assistance / Clarification
ATC Equipment / Nav Facility / Buildings; Software and Automation; Environment - Non Weather Related; Aircraft
While flying in Murmansk airspace; approximately at waypoint 'TURUK' on airway P995 we experienced a loss of GPS signal. Initially it was one receiver and shortly after that both receivers were not providing position information. This lasted until our oceanic entry point; 'BARUX.' Both receivers were back to normal within seconds of each other. GPS signal interference lasted for almost 300 NM. ATC was notified.
Air carrier Line Check Airman reported a loss of GPS signal for approximately 300 NM.