CREATE TABLE table_74617 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When was the game where the away team had a score of 13.8 (86)?
SELECT "Date" FROM table_74617 WHERE "Away team score" = '13.8 (86)'
SELECT "Date" FROM "table_74617" WHERE "Away team score" = '13.8 (86)'