Ok, googling "eff-1-7", the top hits are for Jet Blue, but that doesn't necessary mean a hill of beans, because eff. stands for effective and Google doesn't recognize the hyphens between eff-1-7.
http://www.google.com/search?hl=en&q=%22eff-1-7%22&btnG=Google+Search
JetBlue:Learn More:Press Releases:Printer-Friendly Version:JetBlue ...
... 1/8/04) 11:10am - 2:30pm (eff 1/30/04) 2:25pm - 5:45pm (eff 1/7/04) 7:40pm -
11:00pm (eff. ... 1/8/04) 3:10pm - 6:05pm (eff 1/30/04) 5:25pm - 8:20pm (eff 1/7/04). ...
www.jetblue.com/learnmore/pressprint.asp?newsID=221 - 13k - Cached - Similar pages
JetBlue:Learn More:Press Releases:JetBlue Expands Florida Service ...
... 7:30am -- 10:55am 3:20pm -- 6:45pm 7:25pm -- 10:50pm (eff. 1/6/05), 7:15am --
10:10am (eff. 1/7/05) 11:40am -- 2:35pm 7:30pm -- 10:20pm. ...
www.jetblue.com/learnmore/pressDetail.asp?newsId=256 - 22k - Cached - Similar pages
[ More results from www.jetblue.com ]
Sorry if I mislead you, Cindy. I typed the "eff" to emphasize it. My mistake. It's f17, like f seventeen. I know it's getting late now, 'cause I'm screwing up my own meanings.