Sincere-sounding phone call from high muckety-muck at airline. Many apologies. Pilot had already reported hysterical flight attendant. I need not send letter to CEO. She has done this before and has been reprimanded again and threatened with dismissal. I need not send letter to CEO. He is aware of problem and discussions are under way. This is not typical of our airline so please accept some free flights with our compliments. We'll see.