If the airline that you're flying out with decide to stick to the letter of the law, she will be refused. On arrival at Passport Control in Turkey, she COULD be refused entry.
Anyone flying to Turkey, and most other countries for that matter, must have a minimum of 6 months validity left on their passport. If they are allowed to fly and are then refused entry, the airline are responsible for their repatriation.
You're bound to get folks telling you that they have, or know of someone that has, entered Turkey with less than 6 months on their passport.
Do you feel lucky?