GPS disruption is NOTAM'd or scheduled with Ofcom[1] from time-to-time, although not usually at the airport itself. Given that Gatwick was shut at the time, it

GPS disruption is NOTAM'd or scheduled with Ofcom[1] from time-to-time, although not usually at the airport itself. Given that Gatwick was shut at the time, it wouldn't have affected the aircraft since they weren't able to go anywhere. [1] https://www.ofcom.org.uk/spectrum/information/gps-jamming-exercises https://www.ofcom.org.uk/spectrum/information/gps-jamming-ex...