Anybody else having break failure problems?

What is your question?

My 2008 Ford Fusion has problems with the brakes temporarily going out. Several times I have turned my wheels to the right making a sharp turn and I hear a noise in the left front wheel and the brakes go to the floor. It somehow corrects itself in a day or so. I have taken it to the shop and they couldn't find out what the problem was. Our mechanic also had this problem with another customer's Ford Fusion. Has anyone else had this problem? This could be a real safety problem given the fact that I have been driving slow when this happens and turning into a driveway or road that wasn't busy with traffic.