On February 21, 2022, the Falcon 2000EX aircraft, registration marks CS-DFG, operated by NetJets Europe performing flight NJE550Q from LBSF Sofia (Bulgaria) to ENZV (SVG)-Stavanger/Sola. The flight crew was cleared for line up and take-off from Runway 09. Instead of that, pilots began take-off roll from Taxiway 'H', which is parallel to Runway 09. Then ATCO of Sofia TWR cancelled take-off clearance. At 40kts, the Runway Awareness Advisory System (RAAS) triggered the aural advisory message ‘On Taxiway, On Taxiway’. The aircraft reduced rolling speed and stopped before the intersection of TWY “C”. After coordination with the flight crew, Sofia Tower ATCO issues instructions for a reverse turn and taxiing on TWY "H", line-up and take-off from RWY09
