CREATE TABLE table_25614 ("date  ( dd.mm.yyyy ) " CLOB, "Tail number" CLOB, "Location" CLOB, "Fatalities" CLOB, "Brief description" CLOB)

What's the tail number of the airplane involved in the accident described as crashed?
SELECT "Tail number" FROM table_25614 WHERE "Brief description" = 'Crashed'
SELECT "Tail number" FROM "table_25614" WHERE "Brief description" = 'Crashed'