On 2 April 2014, the system experienced a technical failure that resulted in practical unavailability of the navigation signal for around 12 hours.
On 2 april 2014 the sySteM exPErieNCEd A tecHNiCaL faiLurE That rESulted in pRacticAl unavailability Of the nAVigAtioN signal for aRounD 12 HOUrS