user: Question: What's the tail number of the airplane involved in the accident described as Crashed?
Columns: ['date (dd.mm.yyyy)', 'Tail number', 'Location', 'Fatalities', 'Brief description']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['19.02.1973', 'CCCP-85023', 'Prague', '66/100', 'Landed 470 m short of the runway']
SQL:

assistant: SELECT "Tail number" FROM "Table" WHERE "Brief description" = 'Crashed';