What's the tail number of the airplane involved in the accident described as crashed?
CREATE TABLE table_229917_2 (tail_number VARCHAR, brief_description VARCHAR)
SELECT tail_number FROM table_229917_2 WHERE brief_description = "Crashed"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_229917_2 (tail_number VARCHAR, brief_description VARCHAR) Question: What's the tail number of the airplane involved in the accident described as crashed? [/INST] SELECT tail_number FROM table_229917_2 WHERE brief_description = "Crashed" </s>