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_30900 ( "Episode" real, "First Air Date" text, "Rating (18\u201349)" text, "Share (18\u201349)" real, "Viewers (millions)" text, "Rank (timeslot)" text )

### Question ###
When 11 is the episode what is the air date?

### Accurate SQL ###

SELECT "First Air Date" FROM table_30900 WHERE "Episode" = '11'