Voepass Flight 2283 Flat Spin - How could that happen?

On the 9th of August 2024, an ATR 72-500 entered a flat spin and impacted ground in a residential area near Sao Paulo in Brazil. All 57 passengers and 4 crew members lost their lives. There were no injuries to people on the ground but some property was damaged.

A SIGMET had been issued, warning about severe icing in the area where the aircraft operated. No transport category aircraft types are certified to operate in severe icing, unless they are certified after 2015. And even they have restrictions.

Severe icing is a condition where the rate of ice accretion is such that anti-ice and de-ice systems may fail to reduce and control the hazard.

Links:
American Eagle 4184:    • American Eagle 4184: The Crash That C...  
ATR ice protection systems:    • ATR ice & rain protection systems  
ATR and severe icing:    • ATR ice & rain protection systems  

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