CREATE TABLE table_22969 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT, "U.S. viewers  ( million ) " TEXT)

Name the directed by for production code for 3t7509
SELECT "Directed by" FROM table_22969 WHERE "Production code" = '3T7509'
SELECT "Directed by" FROM "table_22969" WHERE "Production code" = '3T7509'