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_18274425_1 ( written_by VARCHAR, production_code VARCHAR )

### Question ###
Who were the authors of episode having production code 3t7573?

### Accurate SQL ###

SELECT written_by FROM table_18274425_1 WHERE production_code = "3T7573"