My company's 332 fleet went through a phase of flap problems a number of years ago.The problem was moisture in the grease of the flap jacks freezing after a long flight at very cold sat and then giving a stuck ecam.I think airbus were aware of this problem but I never did hear of any feedback.I have done this for real. A flap 1 approach was not a problem.The autopilot can be used down to 500 feet and speed on the 332 was about 155kts.We used about 6000ft of runway and the brakes didn't get very hot.