While landing at KSUA on Thursday I noticed that the boost fuel pump on my right engine had quit. With my return trip only 2 business days away I quickly looked on the field for someone to take a look at the problem. No one was available, however they provided me with the contact information for John at AMS. While speaking with John, he understood my hesitation to fly to his base Palm Beach county without redundancy. John had his staff bundle up some tools and head to my aid. AMS overnighted the boost pump and worked on the plane on Friday as well as came in on Saturday to allow my scheduled Monday departure. I cannot say enough about the Professionalism, Courtesy, promptness, and exceptional service of AMS. I will use them for all of my maintenance needs while in Florida as well as recommend them to everyone I know.