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_17272 ( "Series #" real, "Season #" real, "Title" text, "Directed by" text, "Written by" text, "Musical guest and song" text, "Original air date" text, "Production code" text )

### Question ###
What is theoriginal air date of the episode directed by timothy van patten?

### Accurate SQL ###

SELECT "Original air date" FROM table_17272 WHERE "Directed by" = 'Timothy Van Patten'