Signals from the Global Navigation Satellite System (GNSS) are one of the main inputs used for aircraft positioning or time reference for Communication, Navigation and Surveillance functions on-board most of the Airbus aircraft.

Operators report an increasing number of events related to the loss of GNSS signals due to Radio Frequency Interference (RFI) during operations in some areas of the world.

This article explains the causes of RFI, the effects on the aircraft systems and provides recommendations for flight and maintenance crews

See GNSS Interference | Safety First (

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