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_28116528_1 (original_air_date VARCHAR, production_code VARCHAR)

### Question ###
What date did the episode with a production code of 3x6316 originally air?

### Accurate SQL ###

SELECT original_air_date FROM table_28116528_1 WHERE production_code = "3X6316"