Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_29281529_2 (airdate VARCHAR, winner VARCHAR)

### Question ###
What date did the episode air when guy grossi won?

### Accurate SQL ###

SELECT airdate FROM table_29281529_2 WHERE winner = "Guy Grossi"