On 9 August 2024, an ATR 72-500 at FL170 encountered weather conditions which led to airframe icing. Indicated airspeed decreased quickly without corrective action despite corresponding alerts and almost immediately after an ‘INCREASE SPEED’ alert during a turn, the aircraft stalled eventually entering a flat spin until impacting terrain in a residential area. Impact and a post-crash fire destroyed the aircraft and all occupants were killed. The Investigation is continuing but evidence suggests that crew response to an earlier ‘AIRFRAME DE-ICING’ fault annunciation may have been inappropriate and that ATC during the penultimate airspeed loss may have constituted a distraction.