Survivors of past aviation accidents are offering advice and support to the 80 passengers and crew members of the plane that crashed and flipped over in Toronto.

After Delta Flight 4819’s cabin rolled upside down and came to rest in a terrifying crash landing at Toronto Pearson International Airport, a flight attendant stood on what had been the ceiling – one leg propped on an upturned baggage compartment – and addressed passengers who’d unbuckled themselves from inverted seats.